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Articles 21331 - 21360 of 291708

Full-Text Articles in Physical Sciences and Mathematics

International Game And Strategic Analysis Of China’S Methane Emission Control, Zixu Su, Xinhe Bao Oct 2024

International Game And Strategic Analysis Of China’S Methane Emission Control, Zixu Su, Xinhe Bao

Bulletin of Chinese Academy of Sciences (Chinese Version)

Against the backdrop of methane emission control becoming a hot spot in global climate governance, China, as a major methane emitter, has committed to announcing its 2035 Nationally Determined Contributions covering all greenhouse gases before COP30, drawing significant attention from the world. In order to systematically analyze the international dynamics and China’s response strategies in methane emission control, this article explains the necessity and urgency of methane mitigation based on the current situation of global methane emission, and also clarifies essential meaning of international game to reveal China’s challenge and opportunity amid the backlash against globalization. Besides, it sorts out …

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Quality Infrastructure Empowering Collaborative Innovation In Quantum Information Industry: Mechanism, Demand, And Path, Leilei Zhang, Jian Kang, Zhou He Oct 2024

Quality Infrastructure Empowering Collaborative Innovation In Quantum Information Industry: Mechanism, Demand, And Path, Leilei Zhang, Jian Kang, Zhou He

Bulletin of Chinese Academy of Sciences (Chinese Version)

Against the backdrop of intensified global competition in quantum information, the synergistic effectiveness of quality infrastructure, as a basic system supporting industrial innovation, is directly related to the industrialization process of quantum technology. At present, subdivided industries such as quantum computing, quantum communication, and quantum precision measurement have begun to take shape, and key technologies and core products have entered a critical period of transition from scientific and technological innovation results to industrialization, and the demand for quality infrastructure is becoming increasingly prominent. This study explores the co-evolution mechanism of quality infrastructure driven by industrial innovation and analyzes the coupling …

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Review Of Current Trends In Information Technology Concerning Phonetic Similarity”, Zaid Rajih Mohammed, Ahmed H. Aliwy Oct 2024

Review Of Current Trends In Information Technology Concerning Phonetic Similarity”, Zaid Rajih Mohammed, Ahmed H. Aliwy

Al-Bahir

With the increasing availability of textual information in various languages via the Internet in homes and companies through Internet and intranet services, there is an urgent need for the technologies and tools necessary to process this information, phonetic representation, and voice interaction. For example voice to voice machine translation need to phonetic mapping and similarity among the languages especially for names and foreign words. This one example of the importance of phonetic mapping and similarity. This article aims to describe, in detail, the recent surge in interest and advancements in phonetic similarity (PS), phonetic representation, and phonetic mapping researches. PS …

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The Evolution Of Community Engagement Strategies In The Context Of Advancements In Artificial Intelligence Technologies, Erika Grodzki, Stefanie Powers, Gary Carlin, Hung Chum Kao Oct 2024

The Evolution Of Community Engagement Strategies In The Context Of Advancements In Artificial Intelligence Technologies, Erika Grodzki, Stefanie Powers, Gary Carlin, Hung Chum Kao

Faculty and Staff Publications & Presentations

As the AI landscape continues to evolve, the need for communities to nurture, inform, and challenge these technologies becomes paramount. This panel addresses the importance of traditional and AI driven strategies in terms of community engagement. Four case studies are reviewed to show how AI technologies are being implemented in communities. While AI offers numerous benefits, it is important not to overlook the value of human interaction in building and maintaining thriving community engagement. AI cannot replicate emotional intelligence and authentic relationship building - critical components of community engagement.

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Stand Age And Closing Date Effects On Seed Yield Of Caucasian And Zigzag Clover Cultivars, G T. Daly, Jiwan Gurung, R J. Lucas Oct 2024

Stand Age And Closing Date Effects On Seed Yield Of Caucasian And Zigzag Clover Cultivars, G T. Daly, Jiwan Gurung, R J. Lucas

IGC Proceedings (1977-2023)

Seed yields of Caucasian clover (Trifolium ambigum} and zigzag clover (T. medium) were obtained over 3 seasons. The effects of 6 closing times in the final year were also measured. Caucasian clover cv. Alpine flowered earlier than cv. Monaro and the zigzag clover lines were last to flower. Seed yield of Monaro Caucasian clover in the second and third seasons averaged 400 kg/ha while cv. Alpine produced a maximum of 355 kg seed/ha. Pests and poor pollination were the major limitations lo high yields of zigzag clover seed. Kentucky zigzag clover produced 300 kg seed/ha when seed …

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Breeding Hexaploid Pennisetums For Improved Seed Production, D A. Diz, S C. Schank Oct 2024

Breeding Hexaploid Pennisetums For Improved Seed Production, D A. Diz, S C. Schank

IGC Proceedings (1977-2023)

Interspecific hybrids between pearl millet (Pennisetum glacum) and elephantgrnss (P. purpureum) have many desirable characteristics, but they are sterile and do not have the ability to reproduce subsequent generations from seed. To overcome this barrier, we have obtained fertile hexaploids and have begun a breeding and selection programme among hexaploid progeny which produce seed. Seven hexaploid genotypes were selected and characterised as to panicle, seed and seedling traits. Weight of 100 seeds ranged from 0.152 to 0.247 g for the different genotypes. The number of seed harvested varied from 190 to over 700 per panicle. Germination of …

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Herbage Seed Production In Norway, Ragnar Hillestad Oct 2024

Herbage Seed Production In Norway, Ragnar Hillestad

IGC Proceedings (1977-2023)

Seed of all important species of perennial grasses and clover for northern areas can be produced in Norway, with good quality, at about 60°N. Norway has built up its own plant breeding with seed production and is self-supporting in seed of the most important species for use in agriculture. The seed yield per area unit of grass species decreases from south lo north, but there are differences among cullivars depending on where the breeding work has been carried out. The short growing·season makes it difficult for some species to establish a good stand so the plants can flower and give …

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Effect Of Propiconazole And Tebuconazole On Seed Production Of Tall Fescue, M D. Hare Oct 2024

Effect Of Propiconazole And Tebuconazole On Seed Production Of Tall Fescue, M D. Hare

IGC Proceedings (1977-2023)

When stem rust (Puccinia graminis Persoon) invaded a tall fescue (Festuca arrundinacea Schreb.) stand a fungicide, propiconazole, applied at 250 g ai/ha, increased seed yields by more than l000 kg/ha compared with untreated plots. Propiconazole applied at ear emergence increased seed yields more than when applied at anthesis or at both times. Propiconazole significantly (P<0.05) increased seeds/spikelet and reduced leaf senescence during seed development and at harvest compared with untreated plots. Stem rust (Puccitiia graminis Persoon) severely infected the control plots but not the plots treated with propiconazole at ear emergence. In a second trial, when only a minor trace of stem rust was observed, propiconazole and tebuconazole did not affect seed yields of tall fescue.

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Effect Of Time And Rate Of Application Of The Growth Regulators Paclobutrazol And Flurprimidol On Seed Yield In Tall Fescue, M D. Hare Oct 2024

Effect Of Time And Rate Of Application Of The Growth Regulators Paclobutrazol And Flurprimidol On Seed Yield In Tall Fescue, M D. Hare

IGC Proceedings (1977-2023)

Paclobutrazol and flurprimidol were applied to a mature stand of tall fescue (Festuca anmdi11acea Schreb. cv. Grasslands Roa) at l and 2 kg ai/ha at spikelet initiation (SI) and floret initiation (Fl) in 1985. Paclobutrazol at 2 kg ·ai/ha, applied at both SJ and FI, increased P(<0.05) seed yields but the lower paclobutr z I rate and flurprimidol had no significant effect on seed yields.

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Effect Of Boron And Nitrogen Application On Seed Production Of Lotus Uliginsus, M D. Hare, R A. Carran Oct 2024

Effect Of Boron And Nitrogen Application On Seed Production Of Lotus Uliginsus, M D. Hare, R A. Carran

IGC Proceedings (1977-2023)

Four rates or boron (B) and 2 rates of nitrogen (N) were applied to a mature stand of lotus 11ligi11os11s Schk. cv. Grasslands Maku before flowering, on 10 November 1988. The 2 rntes of N (40 and 80 kg N/ ha) were either applied once or applied at 5 and 10 kg N/ha respectively, at weekly intervals for 8 weeks. N did not increase seed yields. Weekly applications of N significantly (P<0.05) decreased seed yields by 28%. B at 0.91 kg/ha increased seed yields by 7% but this increase was not significant. While seed yields in some tropical legumes may benefit from N application, Grasslands Maku does not benefit. Rather, seed yields are depressed. The application of B did not significantly change seed yields, but more research on B may be needed in areas where B availability is thought to be low.

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Effects Of Defoliation Intensity, Frequency And Time Of Final Defoliation Of Seed Yield Of Barrel Medic, F N. Muyekho, E D. Carter, G K. Mcdonald Oct 2024

Effects Of Defoliation Intensity, Frequency And Time Of Final Defoliation Of Seed Yield Of Barrel Medic, F N. Muyekho, E D. Carter, G K. Mcdonald

IGC Proceedings (1977-2023)

Swards of barrel medic (Medicago truncatula cv. Parnggio), sown at 20 kg/ha (1990), or 20 kg/ha or 200 kg/ha ( 1991 ), were mown to 3 or 6 cm height at intervals up to flowering, or 10 or 20 days after the start of flowering. In 1990, the swards were heavily grazed in July before imposing the defoliation treatments; in 1991 the swards were mown to 3 cm once in July. The responses to defoliation differed between the 2 years, because of the vigour of the sward at the time of imposing the cutting treatments. In 1990 severe defoliation …

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White Clover Seed Production In Northern Italy: Yield And Components For Five Cultivars, Renato Paoletti, Carla Locattello Oct 2024

White Clover Seed Production In Northern Italy: Yield And Components For Five Cultivars, Renato Paoletti, Carla Locattello

IGC Proceedings (1977-2023)

Two medium- (Hollandicum) nnd 3 large-leaved white clover (Trifolium repens.v L.) cultivar types (Ladino) were assessed for seed yield and components during 1988-1991, at Lodi (Po Valley). Dry matter yield wns also evaluated. The analysis of components showed significant (P=0.05) differences among the tesled cul ti vars. The large­lenved varieties Espana and Regal had the highest number of ripe heads/m2 and number of florets/head. The medium-leaved varieties Merwi RvP and Olwen showed good values for seed set only. As to potential and actual seed yield in the first harvesting year, Espanso and Regal were significantly the highest seed …

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Creeping Bentgrass Seed Production In Western In Western Canada, S R. Smith Jr, D J. Cattani Oct 2024

Creeping Bentgrass Seed Production In Western In Western Canada, S R. Smith Jr, D J. Cattani

IGC Proceedings (1977-2023)

Creeping bentgrass (Agrostis stolonifera L.) is an important species for golf courses and high value turfgrass areas throughout the world. Most of the seed production for this species is in the state of Oregon, but there is potential for seed production in western Canada. The objective of this research was to determine the potential for creeping bentgrass seed production in Manitoba under dryland conditions through cultivar evaluation trials and management studies including: optimal seeding dates, seeding rates, row spacings, nitrogen fertiliser and stand renovation. The results of these studies suggest a 1 kg/ha seeding rate and 30-cm row spacing, …

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The Potential Of Weed Control To Improve Seed Production In Selected Tropical Forage Legumes, S Kachelriess, S A. Tarawali Oct 2024

The Potential Of Weed Control To Improve Seed Production In Selected Tropical Forage Legumes, S Kachelriess, S A. Tarawali

IGC Proceedings (1977-2023)

Trials have been conducted in the subhumid zone of Nigeria to assess the potential of different weed control methods to improve seed quantity and quality using three tropical forage legumes: Centrosema pascorum cv. Cavalcade, Chamaecrista rotundifolia cv. Wynn and Stylosanthes hamata cv. Verano. Manual weeding was done at different times and intervals during the growing season and a range of herbicides was tested at different application rates and times. Manual weeding generally produced higher seed yields and purity if plots were weeded in the early and mid growing season. Intervals between weedings and the frequency of weeding was …

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Ovule Fertility - A Tool For Selecting High-Fertility Populations Of White Clover, S V. Pasumarty, T Matusmura, S Higuchi Oct 2024

Ovule Fertility - A Tool For Selecting High-Fertility Populations Of White Clover, S V. Pasumarty, T Matusmura, S Higuchi

IGC Proceedings (1977-2023)

A field experiment was conducted lo clarify the factors responsible, for poor seed set in 4 white clover (Trifolium repens L.) cultivars. Although the mean number of ovules per floret was 5.18-5.29, lhe average number of seeds per floret was found to be only 1.23-1.82. A' stain-clearing technique was used to examine the cytoplasmic state of the embryo sac in intact, unfertilised, mature ovules and it was found that 28;33% of ovules per carpel were sterile. The abortion rate of fertilised ovules and immature seeds (7 days after pollination) ranged between 32 and 34%. Beyond this period, ii was …

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Preliminary Screening Of 17 Tropical Grasses For Tolerance To Eight Gramineaceo Herbicides, D S. Loch, G L. Harvey Oct 2024

Preliminary Screening Of 17 Tropical Grasses For Tolerance To Eight Gramineaceo Herbicides, D S. Loch, G L. Harvey

IGC Proceedings (1977-2023)

Successful seed production of tropical grasses depends on effective weed control. In particular, annual grass weeds compete strongly with perennial grass seed crops during establishment, and invasion by other perennial grasses can also occur. Glasshouse screening experiments involving 15 tropical grass cultivars and two perennial grass weeds were carried out to identify herbicide and grass combinations warranting more detailed investigation. Herbicides at standard ·rates for arable crops were applied either pre-emergence (at sowing) or post-emergence (14 days after sowing). Metribuzin and four herbicides developed for wild oats control (diclofop-methyl, flamprop-methyl, tralkoxydim, tri-allate) showed almost no useful selectiviiy. Marked differences, however, …

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Reproductive Abortion In Birdsfoot Trefoil (Lotus Corniculatus L.), M J. Hill, Supanjani Oct 2024

Reproductive Abortion In Birdsfoot Trefoil (Lotus Corniculatus L.), M J. Hill, Supanjani

IGC Proceedings (1977-2023)

Although reproductive abortion in Lotus coornculatus has been previously reported, this paper attempts to highlight the relative importance of various stages in the reproductive sequence as contributors to reproductive abortion. Flower buds consistently aborted one floret bud before the flowerhead opens. However, throughout the flowering season only about 30% of the 47 (range 29-72) ovules in an ovary successfully developed seeds and only about half of the florets in an open flower successfully developed pods 30 days later. Since no live pods were found without fully developed seeds, ii is suggested that seed is the main cause of pod abortion …

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Effect Of Tiller Emergence Time In Relation To Autumn And Spring Defoliation On Contribution To Yield In Lolium Perenne L., P D. Hebblethwaite, T.G A. Clemence, J.J J. Wiltshire Oct 2024

Effect Of Tiller Emergence Time In Relation To Autumn And Spring Defoliation On Contribution To Yield In Lolium Perenne L., P D. Hebblethwaite, T.G A. Clemence, J.J J. Wiltshire

IGC Proceedings (1977-2023)

The contribution to seed yield of tillers emerging at different times in a Lolium perenne L. seed crop which was defoliated by mowing either in autumn only or in autumn and spring (al floret initiation (FI)) was assessed in 1980 at the University of Nouingham, UK. Tillers were marked at monthly intervals from December until May. Autumn-emerged tillers contributed most to final seed yield, and the extent of apical decapitation by mowing at FI was most severe in this group. Autumn defoliation, however, increased the survival and fertility of spring-emerged tillers. The latter had fewer spikelets, and produced seed of …

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Tall Fescue Dry Matter Partitioning And Seed Yield Components In Response To Lodging, Stephen M. Griffith Oct 2024

Tall Fescue Dry Matter Partitioning And Seed Yield Components In Response To Lodging, Stephen M. Griffith

IGC Proceedings (1977-2023)

Lodging reduces seed yield in perennial herbage grass. The adverse effect of lodging on seed yield may be attributed to reduced photoassimilate supply. This investigation examined plant dry matter partitioning, carbohydrate status and seed yield components in lodged and upright tall fescue (Festuca arundinacea Schreb.). Studies were performed in field plots in -1990 and 1991. Seed yield components (seed number per panicle, total seed weight per panicle, and single seed weight) and leaf, stem and spikelet total water-soluble carbohydrate (WSC) data were collected. Lodging 6 days prior to anthesis had no effect on final seed number per panicle but did …

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Effect Of Levels Of Nitrogen Fertilizer On The Yield Of Clean Seed And Dry Matter Of Setaria Sphacelata Cv. Narok In South-West China, Li Shuan, Zhao Jun-Quan Oct 2024

Effect Of Levels Of Nitrogen Fertilizer On The Yield Of Clean Seed And Dry Matter Of Setaria Sphacelata Cv. Narok In South-West China, Li Shuan, Zhao Jun-Quan

IGC Proceedings (1977-2023)

Prom 1987 to 1989 the effects of N, P, K and S fertilisers on the yields of clean seed and dry matter (DM) production of Setaria sphacelala cv. Narok were studied. The yield of clean seed and DM produced by Narok setaria was significantly and positively related with the levels of urea applied. The main factor which increased the yield of clean seed was an increase in head density. The highest clean seed yields of Narok setaria were 710, 320 and 370 kg/ha in 1987, 1988 and 1989, respectively, from the same experimental plots afler an application of 350 kg …

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Research On Seed Yield And Quality Of Pasture Species Introduced Into Yunnan Province, South-West China, Li Shuan, Zhao Jung-Quan Oct 2024

Research On Seed Yield And Quality Of Pasture Species Introduced Into Yunnan Province, South-West China, Li Shuan, Zhao Jung-Quan

IGC Proceedings (1977-2023)

786 pasture grass and legume cultivars and breeding materials were introduced into Yunnan from 18 countries by The Yunnan Livestock and Pasture Development Project during 1983-1990. Among these 86 cultivars of 48 species showed good adaption and ·produced high yields of dry matter. Research was undertaken on the seed yield and quality of the 86 cultivars in 1985-1990 at lO different sites over the province• 3 tropical, 5 inter-grade tropical-temperate, and 2 temperate. Results showed that some of the most valuable cultivars had high seed yield with good quality, such as Uniharvest lupin (Lupimus augustifolius), Haifa white clover …

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Recommended Methods For Improving Pasture Seed Quality In Yunnan Province, South-West China,, Li Shuan, Zaho Jun-Quan, Dai Chong-Li Oct 2024

Recommended Methods For Improving Pasture Seed Quality In Yunnan Province, South-West China,, Li Shuan, Zaho Jun-Quan, Dai Chong-Li

IGC Proceedings (1977-2023)

Pasture seed is needed for the development of improved pasture in the province of Yunnan, south-west China, but the annual production in the province is only 15-30 t, the shortfall being made up by imported seed. Problems are often encountered with seed quality. The tests outlined in this paper were undertaken to overcome some of these. Results showed that the problem of seed quality was quite serious in the province and to rectify this the following procedures are recommended: ( 1) formulation of precise rules for testing and standards for purity and germination of all pasture seed lines in the …

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Key To Development Of Pasture Seed Industry In Yunnan Province, South-West China, Li Shuan Oct 2024

Key To Development Of Pasture Seed Industry In Yunnan Province, South-West China, Li Shuan

IGC Proceedings (1977-2023)

Adnpted pasture species and their availability ns good quality seed are essential to pasture improvement. Yunnan has the natural advantage to produce a lot of pasture seed, enhancing its pasture improvement programme. The main aspects of pasture seed production work conducted in recent years throughout the province are summarised. The key to the development of the pasture seed industry is the evaluation of adapted pasture species, the selection of suitable sites, good overall management of production, nnd correct stable policies of investing and pricing.

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Achieving Potential Herbage Seed Yields In Tropical Regions, M J. Hill, D S. Loch Oct 2024

Achieving Potential Herbage Seed Yields In Tropical Regions, M J. Hill, D S. Loch

IGC Proceedings (1977-2023)

Tropical grass and legume seed production is discussed in terms of potential, presentation and harvested yields. The main structural components of the crop which determine potential seed yield are outlined. Their contributions to presentation and harvested yields are complicated, firstly by the degree of crop synchronisation which reflects changes in these components over time, and secondly by the rate at which ripe seed is shed. Effects of external fnctors on these yield determinants cause variability in production between different years, localities and fnrms. To maximise yields, the location and management of individual herbage seed crops must be based on a …

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Rangeland Through Time: A Photographic Documentation Of Range Changes In Northern New Mexico, Usa, Christopher D. Allison Oct 2024

Rangeland Through Time: A Photographic Documentation Of Range Changes In Northern New Mexico, Usa, Christopher D. Allison

IGC Proceedings (1977-2023)

Publlc rangelands and their condition have recently come under close scrutiny by the general public and professionals alike. In an attempt to document rangeland changes during the past SO years or more, old photographs were obtained from USDA Forest Service. Photo-journalistic trips were conducted in 1988 and 1990 in the Santa Fe National Forest for the purpose of locating, retaking and comparing recent photographs with the old landscape pictures. Changes in fire regimes and grazing pressures have drastically changed the productivity and condition of these areas with an obvious increase in woody vegetation.

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Managing For Economic And Ecological Stability Of Range And Range-Improved Grassland Systems With The Spur2 Model And The Steeriskier Spreadsheet, Richard H. Hart, Jon D. Hanson Oct 2024

Managing For Economic And Ecological Stability Of Range And Range-Improved Grassland Systems With The Spur2 Model And The Steeriskier Spreadsheet, Richard H. Hart, Jon D. Hanson

IGC Proceedings (1977-2023)

An economically stable management strategy must deal with year-to­year variability in forage supply, caused by weather variability or the attacks of pests and diseases, and variability in livestock prices, interest mies and other financial factors. The STEERISK spreadsheet calculates probabilities of different levels of forage production; optimum stocking rate and steer gains at each level; returns to land, labour and management at current costs and prices as input by the user; and gains and profits at any stocking rate chosen by the user. The SPUR2 model was used to parameterise STEERISK for three Major Land Resource Areas (MLRAs) on rangeland, …

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A Research And Development Strategy For Whitegrass Pasture: The Dominant Cool Temperate Rangeland Species Of The Falkland Islands, G M. Hoppe, J A. Kerr Oct 2024

A Research And Development Strategy For Whitegrass Pasture: The Dominant Cool Temperate Rangeland Species Of The Falkland Islands, G M. Hoppe, J A. Kerr

IGC Proceedings (1977-2023)

Whitegrass (Cortaderia pilosa), the dominant rangeland plant species in the Falkland Islands, has been estimated to cover approximately 60% of the land area, It generally grows on peat soils and exhibits a range of growth forms depending upon soil drainage, The climate of the islands is cool oceanic with on annual precipitation of 300-650 mm. A brief history of agricultural research (established only in 1975) and work areas is presented. A major constraint to the productivity of the Falkland Islands sheep industry is poor utilisation of whilegrnss·dominant pasture. To develop new management strategies for whitegrass aimed at improved …

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Productivity And Nutritive Value Of Coastal And Valley Bottom Plant Communities In The Falkland Islands, J A. Kerr, J H. Mcadam Oct 2024

Productivity And Nutritive Value Of Coastal And Valley Bottom Plant Communities In The Falkland Islands, J A. Kerr, J H. Mcadam

IGC Proceedings (1977-2023)

In the Falkland Islands, short dense grassland communities ("greens") in valley-bottoms, and in coastal areas often associated with dense populations of seabirds, are selectively grazed by livestock and wild geese within the extensive grazing systems. Annual and seasonal herbage productivity, botanical composition, digestibility and utilisation, of greens were experimentally assessed at 6 sites on Bast Falkland. Herbage productivity, digestibility and utilisation were higher than reported for the dominant Cortaderia communities and compared favourably with Improved pastures. Botanical composition of green types were similar. Despite their uneven distribution and low area, greens are an important forage resource and could be used …

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Budgets And Cycling Of Phosphorus Of Leymunes Chinenses In Vegetation-Soil Subecosystem In Arid Temperate Grassland, Fu Linqian, Zhu Tingcheng Oct 2024

Budgets And Cycling Of Phosphorus Of Leymunes Chinenses In Vegetation-Soil Subecosystem In Arid Temperate Grassland, Fu Linqian, Zhu Tingcheng

IGC Proceedings (1977-2023)

In natural grassland in north-east China, the allocation, dynamics, cycling and the flow rates of P were studied, and the relations between various P pools and !ability of P were analysed, The results were that (l) OPe-P and OCa-P are dominant forms in soil; the effect of inorganic P on labile phosphorus (LP) is negligible. LP primarily comes from organic P, especially from labile organic P and micro­organism P. (2) The net budget of P is 2,837 kg/ha/year in the community with an output 1.5538 kg/ha/year from lhe ecosystem. (3) The mineralisation rate of organic P is about 0.0026 gig/year …

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Remote Sensing And Geographic Information Systems For Range Assessment In Southern Alberta, W D. Willms, D J. Major, M J. Hill, B Brisco, R J. Brown Oct 2024

Remote Sensing And Geographic Information Systems For Range Assessment In Southern Alberta, W D. Willms, D J. Major, M J. Hill, B Brisco, R J. Brown

IGC Proceedings (1977-2023)

Ra��ar remote sensing of rangelands offers new possibilities for monitoring and managing a valuable renewable resource that has low productivity. Two studies were conducted on mixed prairie sites in southern Alberta in 1991 to examine the ability to detect range differences in radar backscaner. The data showed that radar backscalter was most sensitive to changes in soil moisture content for seasonal differences, but for synthetic aperture radar(SAR) images it was concluded that most of the backscalter differences were due to differences in surface roughness. These results indicate useful information about rangeland resources may be extracted from SAR. data especially when …

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