搜索结果: 1-15 共查到“rangeland”相关记录17条 . 查询时间(0.165 秒)
生态保护与修复研究所专家著作《Atlas of Rangeland Plants in Hulun Buir》与《呼伦贝尔草原植物群落特征及其退化演替过程》正式出版
生态所 专家著作 呼伦贝尔 草原植物 群落特征 退化演替
2023/3/8
近日，中国林业科学研究院生态保护与修复研究所杨晓晖研究员、朱媛君等撰写完成的著作《Atlas of Rangeland Plants in Hulun Buir》和《呼伦贝尔草原植物群落特征及其退化演替过程》正式出版。
Effect of Supplemental Corn Dried Distillers Grains with Solubles Fed to Beef Steers Grazing Native Rangeland during the Forage Dormant Season
Growing Performance Blood Metabolites Digestion Characteristics Ruminal Fermentation
2016/5/20
Two experiments were conducted to evaluate the effects of the level of corn dry distillers grains with solubles (CDDGS) supplementation on growing performance, blood metabolites, digestion characteris...
ANALYSIS OF SPACEBORNE HYPERION IMAGERY FOR THE ESTIMATION OF FRACTIONAL COVER OF RANGELAND ECOSYSTEMS
Rangeland Hyperspectral Endmember Spectral Unmixing
2015/12/31
The goal of this research was to investigate the potential of hyperspectral Hyperion (EO-1) data to derive fractional cover of rangeland components using constrained linear spectral mixture analysis. ...
STRATIFICATION:A PROBLEM IN RANGELAND MONITORING
Rangeland monitoring Stratification Remote sensing Pixel and object-based image analysis
2015/8/19
Resource stratification for ground-based and remotely-sensed methods of rangeland assessment is essential for locating appropriate sampling sites. This is particularly the case when site comparisons a...
INTEGRATION OF HYPERSPECTRAL DATA FOR RANGELAND CHARACTERIZATION
Rangeland Health Hyperspectral Imagery Landscape Characterization
2015/2/4
Grazing lands in the United States consist of approximately 312 million hectares of federal, state, and private land. A
recent review by the National Research Council indicates a need to collect comp...
Visualization of the rangeland resources from space: A case of Sahel Region, West Africa
Sahel remote sensing rangeland overgrazing environmental degradation
2014/11/26
This study uses Landsat data and Tasseled Cap Transformation green vegetation index (GVI)
technique to assess the condition of rangeland resources in the Sahel region of West Africa.
Three represe...
Time-dependent changes in distribution patterns of soil bulk density and penetration resistance in a rangeland under overgrazing
Bulk density overgrazing penetration resistance
2011/6/29
High soil bulk density and penetration resistance as an indication of soil compaction affect soil infiltration and runoff.
Comparison of Areal Snow Storage Sampling Procedures for Rangeland Watersheds
Areal Snow Storage Procedures Rangeland Watersheds
2009/10/28
The accuracy of photogrammetry in determining snow depth in mountainous
rangeland watersheds was evaluated on a 0.41-km2 subbasin of the Reynolds
Creek Experimental Watershed, located in the Owyhee ...
Time-dependent changes in distribution patterns of soil bulk density and penetration resistance in a rangeland under overgrazing
Bulk density overgrazing penetration resistance rangeland soil compaction spatial variability
2011/3/29
High soil bulk density and penetration resistance as an indication of soil compaction affect soil infiltration and
runoff. Overgrazed rangelands are under severe erosion risk because of soil compacti...
Better Access to New Technologies and Credit Service, Farmers’Land Use Decision,and Policy for Poverty Alleviation and Rangeland Conservation
credit supporting grazing pressure sedentary livestock
2009/9/9
This paper focuses upon the incompatibility between poverty alleviation and environmental conservation and the solution to the incompatibility in an agro-pastoral area of China. The effects on income ...
Variation in Biomass and Chemical Composition of Dominant Rangeland Plants During the Growing Season II. Changes in Chemical Composition
Dominant Rangeland Plants Growing Season Chemical Composition
2009/1/16
This study was conducted to determine the annual variations in crude protein, crude cellulose, P, K, Ca and Mg contents, and the ratio of K/(Ca+Mg) of crested wheatgrass, subalpine brome, sheep fescue...
Variation in Biomass and Chemical Composition of Dominant Rangeland Plants During the Growing Season I. Changes in Biomass, Root/Shoot Ratio, Stem, Leaf, Flower Ratios
Dominant Rangeland Plants Growing Season Biomass Root/Shoot Ratio Stem Leaf
2009/1/16
This study was conducted to determine annual variations in the below- and above-ground biomass, root/stem, stem, leaf and flower ratios of crested wheatgrass, subalpine brome, sheep fescue, junegrass,...
The Effects of Traditional Grazing Practices on Upland（Yayla）Rangeland Vegetation and Forage Quality
Upland rangelands botanical composition canopy coverage
2009/1/8
A seminomadic animal raising system, known as ''yaylacılık'' in Turkish, is one of the best ways of using upland rangelands, particularly in rough terrain regions. Three rangeland sites were...
INCORPORATION OF TEXTURE, INTENSITY, HUE, AND SATURATION FOR RANGELAND MONITORING WITH UNMANNED AIRCRAFT IMAGERY
segmentation texture scale aerial photography accuracy,
2015/11/16
Aerial photography acquired with unmanned aerial vehicles (UAVs) has great potential for incorporation into rangeland health
monitoring protocols, and object-based image analysis is well suited for ...
The Forest and Rangeland Ecosystem Science Center (FRESC) provides scientific understanding and the technology needed to support sound management and conservation of our nation’s natural resources, wi...