Open Access. Powered by Scholars. Published by Universities.®

Earth Sciences Commons™

Open Access. Powered by Scholars. Published by Universities.®

2020

Discipline
Institution
Keyword
Publication
Publication Type
File Type

Articles 1801 - 1830 of 3204

Full-Text Articles in Earth Sciences

Collapses Of Loess At The Front Of The Emei Tableland In The Yuncheng Basin And Their Major Geological Controlling Factors, Li Zhenhong, Jiang Boyu, Dong Xiaopeng, Yang Yong, Cui Jiawei, Gong Wangbin Apr 2020

Collapses Of Loess At The Front Of The Emei Tableland In The Yuncheng Basin And Their Major Geological Controlling Factors, Li Zhenhong, Jiang Boyu, Dong Xiaopeng, Yang Yong, Cui Jiawei, Gong Wangbin

Coal Geology & Exploration

There developed a lot of collapse areas at the front of Emei tableland in Yuncheng Basin, especially around Xinzhuang village. Their evolution process and trend are pivotal issues for evaluating the possibility, time and location of geological hazards. Based on the geological survey in the shallow surface, combining the interpretation of remote sensing data and three-component resonance imaging technique, the surface ground evolution process of the loess collapse area for the past ten years and the present interior structure were summarized. First of all, the front of Emei tableland lies in the transition zone from loess to lacustrine deposits. Therefore, …

Go to article

Influencing Factors Of Thermal Conductivity Of Cementing Materials For Geothermal Wells, Zhang Hao, Xu Shuanhai, Yang Yu, Han Yongliang, Zhang Weidong, Li Yongqiang Apr 2020

Influencing Factors Of Thermal Conductivity Of Cementing Materials For Geothermal Wells, Zhang Hao, Xu Shuanhai, Yang Yu, Han Yongliang, Zhang Weidong, Li Yongqiang

Coal Geology & Exploration

The thermal conductivity of cementing materials is one of the factors that affect the heat removal effect of geothermal wells. In order to improve the thermal conductivity of cementing materials for geothermal wells, orthogonal test was used to study the thermal conductivity of cementing materials based on the AHP-CRITIC mixed weighting method and range analysis. The results show that the thermal conductivity of cementing materials can be improved by adding natural flake graphite, iron powder and quartz sand. The content of graphite and the ratio of water to solid are the primary and secondary factors that affect the comprehensive properties …

Go to article

Progress In Research Of In-Seam Seismic Exploration, Guo Yinjing, Ju Yuanyuan, Fan Xiaojing, Zhang Jianhua Apr 2020

Progress In Research Of In-Seam Seismic Exploration, Guo Yinjing, Ju Yuanyuan, Fan Xiaojing, Zhang Jianhua

Coal Geology & Exploration

after long-term development and improvement, the in-seam seismic(ISS) technology has achieved relatively reliable results in detecting the internal structural development of the coal seam, the thickness variation of the coal seam, and the distribution pattern of the pinch. In order to comprehensively and systematically understand the ISS technology and promote the development of the ISS technology, the status of the ISS technology is reviewed. First, the principle of ISS is briefly described. Then, according to the process of ISS, according to the steps of source excitation, signal acquisition, preprocessing, signal extraction, data processing and analysis, the working principles and methods …

Go to article

Research And Application Of Mine Distributed Seismic Advance Detection System, Dou Wenwu, Wei Jinshan, Jiao Yang, Yang Gaofeng, Ji Zeyu Apr 2020

Research And Application Of Mine Distributed Seismic Advance Detection System, Dou Wenwu, Wei Jinshan, Jiao Yang, Yang Gaofeng, Ji Zeyu

Coal Geology & Exploration

The mine distributed seismic advance detection system is a set of equipment for detecting the heading geological structure of the mine tunnel. The system is based on the seismic reflection theory. The geologic anomaly is determined by the distributed geophones or the distributed excitation of the source. In order to improve the prediction and prediction accuracy of the structure during coal mining, the distributed observation system and the hole capsule detectors are used for data acquisition to improve the sensitivity of the equipment, the negative apparent velocity principle is used to exclude the interference of the lateral and rear geological …

Go to article

Fodder Yield And Quality Of Egyptian Clover (Trifolium Alexandrinum L.), Annual Ryegrass (Lolium Multiflorum Lam.), And Barley (Hordeum Vulgare L.) Monocultures As Affected By Organic And Mineral Fertilization, Heba Sabry Attia Salama Apr 2020

Fodder Yield And Quality Of Egyptian Clover (Trifolium Alexandrinum L.), Annual Ryegrass (Lolium Multiflorum Lam.), And Barley (Hordeum Vulgare L.) Monocultures As Affected By Organic And Mineral Fertilization, Heba Sabry Attia Salama

IGC Proceedings (1977-2023)

Egyptian clover (Trifolium alexandrinum L.) is the most important forage legume crop in Egypt. Despite the fact that its yield and protein content are high, it is characterized by low dry matter content especially in the 1st cut, in addition to its limited energy supply, attributed to the low carbohydrate content. Therefore, there is a pressing need to introduce some promising winter annual forage grasses, like barley (Hordeum vulgare L.) and ryegrass (Lolium multiflorum L.), and investigate their performance under the Egyptian agricultural conditions. This would enhance the Egyptian animal production systems by providing a high-quality feed …

Go to article

Diversifying Agricultural Practices To Meet Fodder Requirements In The Nw Himalayas Through Improved Land Use Systems, Anurag Raizada, Suresh Kumar Apr 2020

Diversifying Agricultural Practices To Meet Fodder Requirements In The Nw Himalayas Through Improved Land Use Systems, Anurag Raizada, Suresh Kumar

IGC Proceedings (1977-2023)

True grasslands formed as climatic climaxes in India are confined to the alpine regions (> 3000 m s l) in the Eastern and Western Himalayas and have been studied for their productivity (Joshi et al.,1988., Ram et al., 1989) and vegetation diversity (Raizada et al., 1998). Other grasslands as they exist are stable sub-climax formations formed as a result of forest degradation and the occurrence of secondary succession in almost all over the Himalayan region. The livelihoods of mountain dwellers is mainly dependent on traditional agriculture and livestock rearing. Animal husbandry is an inseparable component of hill …

Go to article

Dairy Intensification And Grassland Access For Livestock: A Comparative Study Of India And Bangladesh, Braja Swain, Dhiraj Singh Apr 2020

Dairy Intensification And Grassland Access For Livestock: A Comparative Study Of India And Bangladesh, Braja Swain, Dhiraj Singh

IGC Proceedings (1977-2023)

Dairying is the next-best alternative for rural livelihood after crop in South Asia, where more than fifty percent of population depends on it. The milk production is concentrated in the rain-fed and irrigated crop-livestock systems of India, which contributes more than 90 percent of milk production in South Asia. Despite this vast expansion of milk production in India–dairying is characterized by a predominance of small-scale dairy producers who cultivates or have no land and reliance only on indigenous breeds of cattle and buffaloes, where grazing plays an important role for feed. However, dependency on indigenous cattle and grazing changes based …

Go to article

Significance Of Grasses In Establishment Of Ecological Restoration In Mined Out Degraded Land In Jharia Coalfield, Dhanbad, D. C. Jha, Rajkumar, Harish Pal, Mamta Rani Apr 2020

Significance Of Grasses In Establishment Of Ecological Restoration In Mined Out Degraded Land In Jharia Coalfield, Dhanbad, D. C. Jha, Rajkumar, Harish Pal, Mamta Rani

IGC Proceedings (1977-2023)

This paper reviews the experience of ecological restoration adopted by Bharat Coking Coal Limited (BCCL), a Miniratna Company, a subsidiary of Coal India Limited, Government of India, Public Sector Undertaking to restore the mined out degraded land in Jharia Coalfield (JCF). JCF is one of the oldest coalfield of India and was mined in an unscientific manner for more than 100 years by the erstwhile private entrepreneurs until it was nationalised in 1972-73, due to which the coalfield was subjected to severe land degradation, mine fires and subsidence. The total degraded land in the JCF in 1986 was 6,294 hectares. …

Go to article

Rangelands Management: A Foresight In Afghanistan, Yashpal Singh Saharawat, Abdul Rahman Manan, Hyatullah Esmati Apr 2020

Rangelands Management: A Foresight In Afghanistan, Yashpal Singh Saharawat, Abdul Rahman Manan, Hyatullah Esmati

IGC Proceedings (1977-2023)

Afghanistan, a land locked country with arid and semi-arid climatic conditions and the average amount of rainfall is 250 mm per year, heavily depends on the rangelands for livestock feed. Permanent pasture cover around 46% of the total land area i.e. 30 million ha rangeland exist in the country (Thomson et al. 2003), whereas forestry covers around 3% of total area i.e. around 1.9 million ha. Based on seasons, the rangelands of Afghanistan divided into three categories; the winter (16 million ha); the spring and autumn (16 million ha) and summer (22.5 million) pastures. Rangeland degradation is quite severe …

Go to article

Analysis Of Livelihood Structure Of Pastoralists In Banni Grassland In Kachchh District Of Gujarat In India, B. L. Manjunatha, M. Shamasudheen, R. K. Bhatt, Devi Dayal, Pratibha Tewari Apr 2020

Analysis Of Livelihood Structure Of Pastoralists In Banni Grassland In Kachchh District Of Gujarat In India, B. L. Manjunatha, M. Shamasudheen, R. K. Bhatt, Devi Dayal, Pratibha Tewari

IGC Proceedings (1977-2023)

Banni grassland in Kachchh district of Gujarat in India is situated at 69024’ E longitude to 23042’ N latitude axis and spread in about 3847 sq km area. Banni region is a vast salt affected plain and experiences arid climate with average rainfall of 317mm received by southwest monsoon spread between June to September with high coefficient of Variation of 65%. Banni grassland is home to migratory pastoralists, generally called maldharies, for more than 500 years. Banni area comprises of 48 hamlets/villages organized into 19 Panchayats with a population of approximately 40,000 people. Maldharies are landless …

Go to article

Multi-Attribute Analysis Using Coherency And Ant-Tracking Techniques For Fault And Fracture Detection In La Florida Anticline, Llanos Foothills, Colombia, Ziyad Albesher, James N. Kellogg, Ibraheem Hafiza, Essam Saeid Apr 2020

Multi-Attribute Analysis Using Coherency And Ant-Tracking Techniques For Fault And Fracture Detection In La Florida Anticline, Llanos Foothills, Colombia, Ziyad Albesher, James N. Kellogg, Ibraheem Hafiza, Essam Saeid

Faculty Publications

We present techniques to reduce noise and enhance seismic quality, making possible the first multi-attribute analysis of a 3D seismic volume in the Llanos Foothills (La Florida anticline) of Colombia using coherency and ant-tracking techniques for fault and fracture detection. The results could help reduce risk in models of reservoir fracture porosity and permeability. The dominant fracture strike direction in the studied seismic volume (La Florida anticline) is NE–SW (055 ± 20°), parallel to the structural strike of the adjacent Eastern Cordillera Foothills. The application of the ant-tracking technique also reveals the NE-SW fracture set for the reservoir rocks in …

Go to article

The Effects Of Temperature On Evacuation Rates And Absorption Efficiency Of Flathead Catfish, Zach Horstman Apr 2020

The Effects Of Temperature On Evacuation Rates And Absorption Efficiency Of Flathead Catfish, Zach Horstman

School of Natural Resources: Dissertations, Theses, and Student Research

Knowledge of fish gastric evacuation rates are a necessary component for both field and laboratory studies when trying to understand feeding rates, modeling energy budgets, and understanding trophic dynamics of aquatic ecosystems. Many freshwater fish encounter a broad range of environmental temperatures across life history stages, but the mechanistic link between temperature and physiological processes often remains poorly understood. We designed three recirculating aquatic systems capable of rearing Flathead Catfish Plyodictis olivaris in order to quantify gastric evacuation rates and gross energy absorption at three temperatures (17º C, 22º C and 25º C). We examined the relationship between temperature and …

Go to article

In Hot Water: Influence Of Multiple Stressors On Thermal Tolerance Of Fathead Minnows Pimephales Promelas, Alexander Engel Apr 2020

In Hot Water: Influence Of Multiple Stressors On Thermal Tolerance Of Fathead Minnows Pimephales Promelas, Alexander Engel

School of Natural Resources: Dissertations, Theses, and Student Research

Freshwater aquatic systems around the globe are often subjected to physical, biological, and chemical alterations to support societal needs. The Great Plains contains one of the largest agricultural industries in North America, but its productivity has ecological repercussions for adjacent freshwater ecosystems. Specifically, the dependency on surface water irrigation and application of chemical treatments has altered the thermal and chemical composition of freshwater ecosystems throughout the region. Stressors such as elevated temperatures, altered flow regimes, increased contaminant loads affect the physiology and behavior of fishes and can lead to long-term population effects. We examined thermal tolerance of Fathead minnows Pimephales …

Go to article

Comprehensive And Agricultural Greenhouse Gas Emissions Inventories For Nebraska And The Midwest As Baselines For Climate Change Mitigation, Eric R. Holley Apr 2020

Comprehensive And Agricultural Greenhouse Gas Emissions Inventories For Nebraska And The Midwest As Baselines For Climate Change Mitigation, Eric R. Holley

School of Natural Resources: Dissertations, Theses, and Student Research

Climate change is the paramount challenge of today for a sustainable future. Mitigation of greenhouse gas (GHG) emissions is necessary to reduce the associated risks and impacts on society. Using the EPA’s SIT and literature review, comprehensive GHG-emissions inventories were developed for the state of Nebraska over 25 years (1990-2015) and agricultural GHG emissions inventories were developed for the Midwest U.S for one year (2016). Nebraska’s net emissions increased from 56.2 million metric tons of carbon dioxide equivalent (MMtCO2e) in 1990 to 87.4 MMtCO2e in 2016. Agriculture was found to be the sector with the most …

Go to article

The Influence Of Polyethylene Nanoplastics On The Toxicity Of Methoxychlor On D. Magna, Thanh-Binh Duong Apr 2020

The Influence Of Polyethylene Nanoplastics On The Toxicity Of Methoxychlor On D. Magna, Thanh-Binh Duong

Research and Creativity Symposium

Nanoplastics (NPs), defined as plastic particles < 0.1 mm, have become an emerging concern in aquatic environments due to their multiple pathways of entry into rivers and streams. NPs may originate from the manufactured beads for personal care products as well as the from the fragmentation of larger plastic items. Due to their small size they are easily ingested by aquatic organisms, resulting in detrimental health effects such as digestive tract obstructions, feeding debilitation, and energy depletion. Due to their physiochemical attributes, NPs have also been shown to sorb and mobilize organic pollutants such as pesticides, suggesting that interactions between these two types of pollutants may result in an altered biological response compared to the effects of each individual contaminant. This study assessed the potential synergistic or antagonistic effects of polyethylene nanoparticles and the organochlorine pesticide methoxychlor on the viability and mobility of Daphnia magna. Adult D. magna were exposed to either 1) virgin 10-20µm polyethylene pellets, 2) methoxychlor, or 3) various combinations of the same pellet and methoxychlor concentrations for 48 hours or 7 days using a static exposure method. Mortality and paralysis were assessed per 24 hours of exposure. Mobility was assessed after 24 hours of exposure. To assess mobility, individuals were recorded in a light-controlled behavioral chamber for 3 minutes. Footage was analyzed using ToxTrac to quantify mobile speed, acceleration, and distance traveled. While this project is currently ongoing, we expect to find a significant difference in mobility parameters and mortality rates when exposed to the combination of polyethylene pellets and methoxychlor compared to the effects from each contaminant alone. Thus far, few studies have examined the ability of NPs to influence the toxicity of organochlorine pesticides in aquatic invertebrates. This study will help explicate the impacts of plastic pollution on aquatic biota in freshwater systems.

Go to article

The Impacts Of Ph On Trace Contaminant Leaching And Toxicity Of Coal Ash In Planorbella Duryi, Catherine Crowell Apr 2020

The Impacts Of Ph On Trace Contaminant Leaching And Toxicity Of Coal Ash In Planorbella Duryi, Catherine Crowell

Research and Creativity Symposium

Coal fly ash is a major industrial waste that is primarily produced by coal-burning power plants. Ash contains multiple trace contaminants that have the potential to leach into waterways after rain events, causing undesirable effects on aquatic species in these ecosystems. Few laboratory studies have examined the relationship between acidified rainfall and the release of trace metals from coal ash and the impacts of such rainfall on the toxicity of coal ash leachates on aquatic invertebrates. Thus, the goals of this study were to 1) evaluate the effect of varying pH’s on the leaching of trace contaminants from coal ash …

Go to article

The Presence, Distribution, And Concentration Of Microplastics In The Lower Basin Of The Chesapeake Bay, Usa Near Wastewater Treatment Plants, Thanh-Binh Duong Apr 2020

The Presence, Distribution, And Concentration Of Microplastics In The Lower Basin Of The Chesapeake Bay, Usa Near Wastewater Treatment Plants, Thanh-Binh Duong

Research and Creativity Symposium

The Chesapeake Bay is a large estuary located along the east coast of the United States, with numerous wastewater treatment plants (WWTP) located throughout its basin. This area supports a vast diversity of aquatic biota and provides for numerous communities throughout the eastern United States. While effluent from WWTPs has been identified as a major contributor to microplastic pollution, little research has been conducted to examine microplastic contamination in the Chesapeake Bay watershed areas surrounding these effluent streams. Microplastics are unique in that their size (<5mm) enables ease of ingestion by aquatic organisms, causing adverse health effects such as energy depletion and digestive tract obstructions. MPs may also biomagnify throughout trophic levels, ultimately posing a threat to human health due to unintended consumption. In this study, the presence of microplastics in major rivers in the lower basin of the Chesapeake Bay, USA was examined. Water samples and sediment samples were collected in the Potomac and Rappahannock river upstream, midstream, and downstream of WWTP outfall sites via dip sampling and grab sampling, respectively. Sediment samples were treated with a wet peroxide oxidation using Fenton’s reagent to digest natural organic matter and sodium chloride to separate MPs from the sample. Surface water samples were filtered by vacuum filtration to separate suspended particles from water. Presence, type, and quantity of MPs were assessed using light microscopy. While this project is currently ongoing, we expect to find that MPs are more abundant in samples collected at WWTP outfall locations rather than locations upstream or downstream from those sites. The results of this study will provide novel information regarding the presence, distribution, and concentrations of MPs in water and sediment samples from several areas of the Chesapeake Bay watershed due to inputs from WWTP effluent.

Go to article

Oxygen Isotope Variability In Crassostrea Virginica Shell From The Chesapeake Bay: Applications To Regional Paleoclimate, Cheyenne Palmo Apr 2020

Oxygen Isotope Variability In Crassostrea Virginica Shell From The Chesapeake Bay: Applications To Regional Paleoclimate, Cheyenne Palmo

Research and Creativity Symposium

Future climate predictions in the Chesapeake Bay region suggest unprecedented warming (Cronin et al., 2003) and more intense periods of rainfall (Najjar et al., 2010). In order to quantify present and future changes in climate variability, we need a long baseline of natural climate variability that extends far beyond the instrumental record. Paleoclimate records can be used to help quantify anthropogenic climate change from natural climate variability. However, reconstructing regional climate in an estuary system is challenging, resulting in a lack of pre-instrumental era climate records for the Chesapeake Bay. The Common Eastern Oyster, Crassostrea Virginica, is a promising natural …

Go to article

Sublethal Effects Of Sulfoxaflor Pesticide On Physiology And Behavior Of Daphnia Magna, Mary Hoffman Apr 2020

Sublethal Effects Of Sulfoxaflor Pesticide On Physiology And Behavior Of Daphnia Magna, Mary Hoffman

Research and Creativity Symposium

Insect pests are a major concern for large-scale agriculture as a result of increasing insect resistance to pesticides, driving a need for the development of new pesticides. Sulfoxaflor, a sulfoximine pesticide recently approved for use by the USEPA, was developed in order to replace neonicotinoid use and has shown to have high efficacy in the field. It is used in rotation with other pesticides, with environmental introduction caused primarily by wet spray application or agricultural runoff. In insects, sulfoxaflor binds to nicotinic acetylcholine receptors, triggering over-activation that leads to paralysis and death. Preliminary exposure studies have shown neonatal effects and …

Go to article

Exposure Effects Of Thiamethoxam On The Viability, Growth, And Behavior Of Physa Acuta, Spencer Saunders Apr 2020

Exposure Effects Of Thiamethoxam On The Viability, Growth, And Behavior Of Physa Acuta, Spencer Saunders

Research and Creativity Symposium

Thiamethoxam is a neonicotinoid insecticide that targets the nicotinic acetylcholine receptors of target organisms. It is used on a wide variety of crops and can be applied in multiple methods including seed coatings, broadcast sprays, or foliar sprays. As thiamethoxam is highly soluble, it easily enters aquatic environments and surface water through run-off events from agricultural fields. Detected environmental concentrations have ranged from the low ng/L range up to 225 ug/L. While the effects of thiamethoxam exposure has been well studied in aquatic vertebrates, few studies have examined their impacts on freshwater invertebrates. As such, this study assessed the impacts …

Go to article

Evaluation Of Metal Contamination And Soil Properties At Former Mine Sites In Poland, Kaitlyn Mcclung, Emily Brooks Apr 2020

Evaluation Of Metal Contamination And Soil Properties At Former Mine Sites In Poland, Kaitlyn Mcclung, Emily Brooks

Research and Creativity Symposium

Surface mining dramatically affects the environment, both where the resource extraction takes place and in the areas where mining wastes and overburden are deposited. Poland is Europe’s top coal producing country and is also home to many mines for pyrite, sand, and other mineral resources. We studied soil samples from three former mining areas in Poland: the Bełchatów and Smolnica coal mines, and the Piaseczno sulfur mine. Various substrates, amendments, and trees had been used for remediation, with activities taking place up to 36 years previously. The success of reforestation and soil development varied greatly, especially in pH, organic matter, …

Go to article

Arc‐Type Magmatism Due To Continental‐Edge Plowing Through Ancient Subduction‐Enriched Mantle, Douwe J.J. Van Hinsbergen, Wim Spakman, Hugo De Boorder, Michiel Van Dongen, Simon M. Jowitt, Paul R.D. Mason Apr 2020

Arc‐Type Magmatism Due To Continental‐Edge Plowing Through Ancient Subduction‐Enriched Mantle, Douwe J.J. Van Hinsbergen, Wim Spakman, Hugo De Boorder, Michiel Van Dongen, Simon M. Jowitt, Paul R.D. Mason

Geoscience Faculty Research

The puzzling... (See article for full abstract).

Go to article

Case Studies Of Colorado Lows And The Impacts On Winter Weather Maintenance, Nathan Rick Apr 2020

Case Studies Of Colorado Lows And The Impacts On Winter Weather Maintenance, Nathan Rick

Department of Earth and Atmospheric Sciences: Dissertations, Theses, and Student Research

Winter storms of varying degrees plague the Plains each year, bringing with them ice, snow, wind, and cold temperatures which adversely affect public, commercial, and private transportation alike. The Nebraska Department of Transportation (NDOT) adopted a Maintenance Decision Support System (NDOT-MDSS) to aid in their winter weather maintenance practices. NDOT-MDSS ingests data from a variety of numerical weather models as well as real time surface and pavement observations to output both a weather forecast and winter road maintenance recommendation that can be taken into account by NDOT to finalize their maintenance decisions for a specific storm system or road segment. …

Go to article

Vegetation Dynamics In Relation To Land Use Within The High Altitude Alpine Grasslands Of Lesotho, Southern Africa, Nico Smit, G. Janse Van Rensburg Apr 2020

Vegetation Dynamics In Relation To Land Use Within The High Altitude Alpine Grasslands Of Lesotho, Southern Africa, Nico Smit, G. Janse Van Rensburg

IGC Proceedings (1977-2023)

The Kingdom of Lesotho is characterized by its unique geographical feature of being dominated by rugged mountainous terrain. It is also the only true alpine region in southern Africa that supports high plant species diversity. Large areas suffer from overgrazing and erosion, as well as over exploitation of its natural resources. The livestock industry in Lesotho has long been a vital component of the economic and social structure of the country and the alpine region is considered as an important grazing resource by local Basotho herdsmen. Consequently, a study was conducted with the two objectives: to determine the phytomass, grazing …

Go to article

Ensuring On-Farm Production And Utilization Of Fodder Planting Materials: A Case Of Hybrid Napier In Rural Uttar Pradesh, Shantanu Kumar Dubey, Udham Singh Gautam, Anand Kumar Singh, Atar Singh, Ajit Srivastava Apr 2020

Ensuring On-Farm Production And Utilization Of Fodder Planting Materials: A Case Of Hybrid Napier In Rural Uttar Pradesh, Shantanu Kumar Dubey, Udham Singh Gautam, Anand Kumar Singh, Atar Singh, Ajit Srivastava

IGC Proceedings (1977-2023)

Fodder and livestock rearing is sine-qui-non to each other. Feeding assumes highest share (60-70%) of total cost involved in livestock production. Making the green fodder available round the year to the cattle keepers is a great challenge. The country faces the current deficit of green and dried fodder to the extent of 40 percent. The current level of milk production in India to the extent of 128 mt which is expected to be 160 mt by 2050 demands 494 mt dried fodder, 825 mt green fodder and 54 mt of concentrate feed. Probably, it is beyond the capacity of any …

Go to article

Mountain Pasture Management By Goat Farmers: Case Of Kabylia Region, Mouhous, Kadi, Djellal, Berchiche Apr 2020

Mountain Pasture Management By Goat Farmers: Case Of Kabylia Region, Mouhous, Kadi, Djellal, Berchiche

IGC Proceedings (1977-2023)

In mountainous areas of Algeria, like the countries of North Africa and the Sahel, small ruminants contribute substantially to the food and economic security of mountain households (Bengoumi and Ameziane El Hassani, 2013). Changes in the farming environment affected the small ruminant production systems. These changes induced adaptations related to conducting of breeding and production orientation (Dubeuf and Boyazoglu, 2009). In Tizi Ouzou in Kabylia region, dairy goat farming operates in an environment appropriate because of its relief and vegetation (presence of vegetation, forests,). The extensive farming system is the one used in the study area. The herds are of …

Go to article

Field Bund & Border As Alternative Land Use For Forage Production: A Case Of Marginal Farmer In Bundelkhand Region Of India, Raghunandan Prasad Dwivedi, Inder Dev, Ramesh Singh, K. B. Sridhar, R. K. Tewari, R. H. Rizvi, S. K. Dhyani, Anand Kumar Singh, Pinky Singh, Ruchi Srivastava Apr 2020

Field Bund & Border As Alternative Land Use For Forage Production: A Case Of Marginal Farmer In Bundelkhand Region Of India, Raghunandan Prasad Dwivedi, Inder Dev, Ramesh Singh, K. B. Sridhar, R. K. Tewari, R. H. Rizvi, S. K. Dhyani, Anand Kumar Singh, Pinky Singh, Ruchi Srivastava

IGC Proceedings (1977-2023)

In India, if marginal farmers are approached for production of forage grasses in their agricultural lands, the response of the farmers would be straight forward „NO‟ to the forage crops on agricultural lands. The reason is that food grains (cereals & pulses), vegetables, oilseeds, fruits, etc. are grown on agricultural land and get the first preference for family members, while the forage grasses are least preferred, as crops residues are being fed to livestock. More than 60% of the farm produce come from the small farms only. The productivity of the marginal and small farmers is the solution for growing …

Go to article

Rejuvenation Of Wild Ber (Zizyphus Species) Through Budding At Farmer’S Field, Ravi Pratap Singh, Satendra Kumar, Rajiv K. Agrawal, Sunil Kumar, M. M. Das, J. B. Singh Apr 2020

Rejuvenation Of Wild Ber (Zizyphus Species) Through Budding At Farmer’S Field, Ravi Pratap Singh, Satendra Kumar, Rajiv K. Agrawal, Sunil Kumar, M. M. Das, J. B. Singh

IGC Proceedings (1977-2023)

Ber is mainly cultivated for its fresh fruits, which are rich in vitamins C, A and B complex. Due to its nutritional qualities it is called poor man’s apple (Gajbhiya et al., 2003). A large number of wild ber shrubs (Zizyphus mauritiana, Z. rotundifolia and Z. nummularia) were seen growing on the neglected lands, uncultivated lands, roadsides and farm boundaries in Kadesara Kala Village in Lalitpur district of Uttar Pradesh (India). Production potential of this species is very low because of poor upkeep and inferior genetic makeup. But they have extensive root system which can withstand …

Go to article

Does Producing Forages Improve Livelihoods In Dry Areas? The Case Of Afghanistan (On-Going Research), Roberto Tellaria, Serkan Ates, Srinivas Tavva, Hyatullah Esmati Apr 2020

Does Producing Forages Improve Livelihoods In Dry Areas? The Case Of Afghanistan (On-Going Research), Roberto Tellaria, Serkan Ates, Srinivas Tavva, Hyatullah Esmati

IGC Proceedings (1977-2023)

Agriculture is the main livelihood and a major contributor to the Afghan economy. Livestock production contributes with almost 50% of agricultural GDP in Afghanistan where out of 75% Afghans who live in rural areas, 85% keep some livestock (AusAID and ACIAR, 2011). In particular, small ruminants (sheep and goats) provide small holder rural Afghan families with livelihoods, food and capital. However, insufficient feed is a key constraint that limits productivity, income growth and sustainability in the crop-livestock farming (GIRoA, 2009). The purpose of this research was to assess and identify which forage production technologies offers high productivity and resilience to …

Go to article

Participatory Evaluation Of Herbage Composition, Biomass Yield, And Management Practices Of Natural Grazing Lands In Sidama Highlands Of Southern Ethiopia, Yoseph Mekasha, Birhanu Biazen, Azage Tegegne, Tesfaye Shewage Apr 2020

Participatory Evaluation Of Herbage Composition, Biomass Yield, And Management Practices Of Natural Grazing Lands In Sidama Highlands Of Southern Ethiopia, Yoseph Mekasha, Birhanu Biazen, Azage Tegegne, Tesfaye Shewage

IGC Proceedings (1977-2023)

Natural grazing land is the dominant source of feed for ruminant livestock in Ethiopia (Alemayehu, 2003; Zewdie and Yoseph, 2014). However, the production capacity and quality of natural grazing lands has been deteriorating over time and could not support optimum livestock production. Overgrazing the natural grazing lands due to poor grazing land management is among the major contributing factors (Alemayehu, 2003). Although previous studies focused on the evaluation of native grass lands it was either limited to arid and semi-arid agro-ecology or undertaken under different settings (Ayana, 2010; Diriba et al., 2012). Moreover, it did not involve the community …

Go to article

First Prev Next Last