Life Sciences Commons^™

The Effect Of Climate Change On Livestock Carrying Capacity Of Inner Mongolia, Yurong Wei, Ruiqing Guo, Xuebiao Pan, Buju Long

IGC Proceedings (1997-2023)

No abstract provided.

Phenotypic Responses Of Sagebrush To The Southwestern North America Megadrought: A Genotype-By-Environment (Gxe) Approach, Kara A. Navock

Boise State University Theses and Dissertations

The Southwestern North America megadrought is an extreme climate event. Artemisia tridentata (big sagebrush) is the dominant, keystone species of sagebrush-steppe ecosystems in arid and semi-arid habitats of western North America. I conducted a genotype-by-environment (GxE) experiment on two putative genotypes (drought-tolerant, G1 and drought-sensitive, G2) and two cytotypes, diploid (2x) and tetraploid (4x), to determine the phenotypic responses of big sagebrush seedlings to drought. For three chlorophyll fluorescence parameters, my results indicate a complex set of factors influence sagebrush responses to drought, including canalization, adaptive phenotypic plasticity, cryptic genetic diversity, and GxE interactions. Variation in leaf temperature profiles of …

Livestock Diversity And Climate Change In Rangelands, Irene Hoffmann, Beate Scherf, David Boerma

IGC Proceedings (1997-2023)

No abstract provided.

The Effect Of Climate Change On Livestock Carrying Capacity Of Inner Mongolia, Yurong Wei, Ruiqing Guo, Xuebiao Pan, Buju Long

IGC Proceedings (1997-2023)

No abstract provided.

Research On The Relationship Between Climate And Plant Community In North Grassland Of China, Xuebiao Pan, Yurong Wei, Buju Long, Zhihua Pan

IGC Proceedings (1997-2023)

No abstract provided.

A Conceptual Model To Explain Increasing Woody Biomass In Arid And Semi‐Arid Regions, Anthony R. Palmer, D. Eamus

IGC Proceedings (1997-2023)

No abstract provided.

Impacts Of Human Interference And Climate Variability On The Grasslands Of Kerala, K. Shadananan Nair

IGC Proceedings (1997-2023)

No abstract provided.

Socio‐Ecological Influences On Grazier Uptake Of Seasonal Climate Forecasts On The Rangelands In Australia, Nadine A. Marshall, A. J. Ash, I. J. Gordon, C. K. Mcdonald

IGC Proceedings (1997-2023)

No abstract provided.

Process‐Based Modelling Of Timothy Survival In Winter, Marcel Van Oijen, S. M. Thorsen, A. H. M. C. Schapendonk, Mats Höglind

IGC Proceedings (1997-2023)

No abstract provided.

Climate And Grazing Interact To Control Rangeland Vegetative Characteristics At A Regional Scale On The Tibetan Plateau, Julia A. Klein, J. Harte, X. Q. Zhao

IGC Proceedings (1997-2023)

No abstract provided.

Warming‐Induced Decline In Ecosystem Services Is Mitigated By Plant Traits On The Tibetan Plateau, Julia A. Klein, J. Harte, X. Q. Zhao

IGC Proceedings (1997-2023)

No abstract provided.

Effect Of Increased Autumn Temperature And Co2 Concentration On Frost Hardening And Winter Survival In Lolium Perenne, Mats Höglind, M. Jørgensen, Liv Østrem, L. Mortensen

IGC Proceedings (1997-2023)

No abstract provided.

Climate Change And Human Activity Impacts On The Net Primary Production Of Alpine Grassland In Northern Tibet, China, Qingzhu Gao, Yue Li, Yunfan Wan, Wangzha Jiangcun, Baoshan Wang, Wenfu Li

IGC Proceedings (1997-2023)

No abstract provided.

Interactions Between Defoliation, Warming, And Drought In A Native Northern Grassland In Alberta, Canada, J. F. Cahill, E. W. Bork, S. X. Chang, H. C. Proctor, S. D. Wilson

IGC Proceedings (1997-2023)

No abstract provided.

The Impact Of Climate Change On Grassland--A Modelling Approach, Lianhai Wu, C. F. E. Topp

IGC Proceedings (1997-2023)

No abstract provided.

The Climate Change Challenge For Managed Grasslands In New Zealand, Judy Lawrence

IGC Proceedings (1997-2023)

No abstract provided.

Restoration Of Desertified Grassland And Challenges In Northern China--For The Possibility Of Sustained Desertification Reversion, Xueyong Zhao, Halin Zhao, Xiaoan Zuo, Yayong Luo, Shaokun Wang, Zhiqiang Kou, Hao Qu

IGC Proceedings (1997-2023)

No abstract provided.

Variable Fall Climate Conditions On Carbon Assimilation And Spring Phenology Of Young Peach Trees, Brian T. Lawrence, Juan Carlos Melgar

Publications

Variable fall temperature and moisture conditions may alter leaf senescence of deciduous fruit trees, influencing carbon assimilation before dormancy and phenology the following spring. This study explored gas exchange of young peach trees (Prunus persica (L.) Batsch) when senescence proceeded normally or was delayed during the fall under two soil moisture treatments: Well-irrigated trees or water deficit. Results showed leaf carbon assimilation was similar between the senescence treatments, but whole tree assimilation was estimated to be greater in delayed senescence trees compared to normal senescence trees based on timing of defoliation and total leaf area. The effect of soil moisture …

Dealing With Transitions In Climate, Economic, And Political Conditions In Eurasia, D. S. Ojima, T. Chuluun, S. Temirbekov, T. Riley

IGC Proceedings (1997-2023)

No abstract provided.

Infrared Heater Arrays For Warming Grazingland Field Plots, Bruce A. Kimball, Matthew M. Conley, Shiping Wang, Xingwu Lin, Caiyun Luo, Jack Morgan, David Smith

IGC Proceedings (1997-2023)

No abstract provided.

Floral Traits And Carbon Dynamics Of Cucumber In Response To Climate Change, Sarah Josina Mcdonald

Electronic Thesis and Dissertation Repository

Pollination by animals is an important ecosystem service that contributes to the reproduction of many angiosperms. Climate change may alter this mutualism by affecting floral traits that are important to pollinators. Using Cucumis sativus, I tested the effects of experimentally elevated temperature and CO₂ concentration on flowering onset, flower number, flower size, and floral rewards. Additionally, to better understand plant carbon balance and investment in reproduction, I measured biomass partitioning and leaf carbon fluxes of plants under their growth conditions. Carbon dynamics were similar across treatments, and plants grown under high [CO₂] and temperature showed similar …

Patterns For Populus Spp. Stand Biomass In Gradients Of Winter Temperature And Precipitation Of Eurasia, Vladimir Andreevich Usoltev, Baozhang Chen, Seyed Omid Reza Shobairi, Ivan Stepanovich Tsepordey, Viktor Petrovich Chasovskikh, Shoaib Ahmad Anees

Aspen Bibliography

Based on a generated database of 413 sample plots, with definitions of stand biomass of the genus Populus spp. in Eurasia, from France to Japan and southern China, statistically significant changes in the structure of forest stand biomass were found, with shifts in winter temperatures and average annual precipitation. When analyzing the reaction of the structure of the biomass of the genus Populus to temperature and precipitation in their transcontinental gradients, a clearly expressed positive relationship of all components of the biomass with the temperature in January is visible. Their relationship with precipitation is less clear; in warm climate zones, …

Genetic Diversity: The Hub Of Plant Breeding, Foster Kangben

English Language Institute

Agriculture the world over is faced with the threat of food, fiber, and nutrition insecurity especially in the wake of climate change. However, employing two approaches to plant breeding, the molecular and phenotypic methods, can make use of genetic diversity in crop species in order to help surmount these challenges.

Projected Surface Water For Fruit And Vegetable Irrigation Under A Changing Climate In The Us, Marty Matlock, Greg Thoma, Kieu Ngoc Le, Eric Cummings, Zach Morgan, Andrew Shaw

Water Systems

Increasing greenhouse gas concentrations in the atmosphere, resulting in climate impacts, are raising concerns over the hydrologic cycle and its effects upon agricultural productivity. If rainfall patterns change, meeting an increased demand for fruits and vegetables will pose a challenge for domestic production regions in the United States (U.S.). Information on potential water supply scarcity in the current production regions provides decision makers with critical information for risk mitigation for future production. We used a hydrologic balance-based model of historic and future water availability to evaluate risk of available irrigation water to support major fruit and vegetable production the US. …

Investigating The Role Of Carbon Stress In The Mortality Of Tamarack Seedlings Under A Warming Environment, Bridget K. Murphy

Electronic Thesis and Dissertation Repository

Climate warming is increasing the frequency of climate-induced tree mortality events. While drought combined with heat is considered the primary cause of this tree mortality, little is known about whether high temperatures alone can induce mortality, or whether rising CO₂ will increase survival. I grew tamarack in two experiments combining warming (0-8 ˚C above ambient) and CO₂ (400-750 ppm) to investigate whether high growth temperatures led to carbon limitations and mortality. Using glasshouses, +8 ˚C warming with ambient CO₂ (8TAC) led to 40% mortality despite thermal acclimation of respiration. Dying 8TAC seedlings had lower needle carbon concentrations …

Effect Of Climate Change In 50-Years Period On Grassland Productivity In Central Poland, Piotr Goliński, Marek Czerwinski, Barbara Golińska

IGC Proceedings (1997-2023)

In Central Europe, the climate change is predicted to bring more rainfall in winter, less rainfall in summer, and an increased drought risk (Trnka et al., 2011). Smit et al., (2008) reported that significant drops in grassland productivity can usually be attributed to drier summers. Also in Poland, the most important abiotic factor limiting grassland productivity is water shortage and its distribution during vegetative season. Indicating the influence of climate on grass vegetation growth could be an important tool in grassland management on the national, regional and single grassland scales. The aim of the study was to evaluate …

Climate Change Adaptation In Vulnerable Crop And Livestock Production Systems In Mgeta, Tanzania, Leif Jarle Asheim, Zabron C. Nziku, Lars O. Eik, Dismas Mwaseba, George C. Kifaro

IGC Proceedings (1997-2023)

Awareness regarding effects of climate change on the environment and livelihoods is becoming more apparent than at any time before (Elisha, 2006). Among the farming systems that have attracted the attention in Tanzania, are those in Mgeta in thehigh altitude water catchment area in the Uluguru Mountains. Land degradation have been widely reported in Mgeta (Ponte, 2001), and is currently threatening the source of water for domestic use and livelihoods of the local communities. Increased occurrence of droughts and dry spells during the growing seasons might reinforce the problem. A robust cropping system toreplace the erosion vulnerable vegetables seems needed …

Frost Tolerance, Deacclimation And Reacclimation Traits In Perennial Ryegrass, Mats Höglind, Hans Martin Hanslin

IGC Proceedings (1997-2023)

The ability of perennial grasses to harden and maintain frost tolerance throughout the winter is crucial for winter survival. This includes the ability to resist deacclimation during transient mild spells in winter, and the ability to reacclimate when cold temperatures return. The latter traits are especially critical in regions with cycles of freezing and thawing, and lack of a stable, insulating snowcover that can protect the plants from extreme air temperatures. Such conditions are typical for many coastal areas in Northern Eurasia and America, such as the southwestern coast of Norway. The climate is changing and one of the consequences …

Importance Of Grassland Management For Carbon Sequestration And To Mitigate Climate Change: A Review, Poonam Yadav, Sheela Choudhary, Sunil Dutt Choudhary, Praveen Kaushik

IGC Proceedings (1997-2023)

Grasslands, including rangelands, shrub lands, pastureland, and cropland sown with pasture and fodder crops, covered approximately 3.5 billion ha in 2000, representing 26 percent of the world land area and 70 percent of the world agricultural area, and containing about 20 percent of the world’s soil carbon stocks (Ramankutty et al., 2008). All ecosystems- forested ecosystems, agro-ecosystems, grassland, ecosystems etc. take up atmospheric CO₂ and mineral nutrients and transform them into organic products In undisturbed ecosystems, the carbon balance tends to be positive: carbon uptake through photosynthesis exceeds losses from respiration, even in mature, old-growth forest ecosystems.

Improving …

Simulating The Effect Of The Climate Change, Genotypes And Management On The Productivity Of Forage Cowpea In Semi-Arid Regions Of India, Suchit K. Rai, Sunil Kumar, D. Deb

IGC Proceedings (1997-2023)

Climate variability and change due to increase in green house gases concentration and the resultant increase in temperature has led to notable changes in different sectors including water and agriculture which would impact food security (Rai et al., 2014) in many regions of the developing world, which are largely dependent on rainfed and labor intensive agricultural production (Ziervogel and Calder, 2003). Eco-physiological models are widely used especially the potential impacts of climate change (Gitay et al., 2001; White et al., 2011). The cowpea (Vigna unguiculata (L.) Walp.) is an annual herbaceous legume cultivated for its edible seeds …