搜索结果: 1-15 共查到“Semi-Arid”相关记录103条 . 查询时间(0.25 秒)
Revealing the Structure and Composition of the Restored Vegetation Cover in Semi-Arid Mine Dumps Based on LiDAR and Hyperspectral Images
ecological restoration hierarchical classification vegetation structure LiDAR vegetation species
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2023/12/1
Remotely sensed images with low resolution can be effectively used for the large-area monitoring of vegetation restoration, but are unsuitable for accurate small-area monitoring. This limits researche...
北京大学城市与环境学院刘鸿雁教授课题组在Communications Biology期刊上发表题为“Drought-modulated allometric patterns of trees in semi-arid forests”的论文（图）
刘鸿雁 教授 半干旱区森林 树木生长
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2020/8/20
北京大学城市与环境学院刘鸿雁教授课题组7月30日在Communications Biology期刊上发表题为“Drought-modulated allometric patterns of trees in semi-arid forests”的论文。课题组与中科院植物所、英国埃克塞特大学、德国马普生物地球化学研究所同行合作，借助地基激光雷达，系统地研究了我国北方地区广泛分布的蒙古栎（Querc...
LAND USE/LAND COVER CHANGES IN SEMI-ARID MOUNTAIN LANDSCAPE IN SOUTHERN INDIA: A GEOINFORMATICS BASED MARKOV CHAIN APPROACH
Land cover Markov Kallar NDVI Drought Geoinformatics
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2017/7/12
Nowadays land use/ land cover in mountain landscape is in critical condition; it leads to high risky and uncertain environments. These areas are facing multiple stresses including degradation of land ...
Marker characterization of vernalization and low-temperature tolerance loci in barley genotypes adapted to semi-arid environments
Algerian cultivars growth habit low-temperature MAS VRN-H1 VRN-H2 FR-H2
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2016/12/8
For the purpose of marker assisted selection (MAS), six Algerian cultivars and landraces developed locally or introduced from external breeding programs for semi-arid environments were marker characte...
Multitemporal effects in regional planning over a part of semi-arid regions of Paraiba, Brazil
Multitemporal effects regional planning over semi-arid regions Paraiba Brazil
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2016/5/23
The present study is a part of the CNPQ project no. 521477/96-4, which is being carried in the semi-arid region (lower part of the higher Piranhas) of the state of Paraíba in northeastern Brazil. The ...
COMPARISON OF LAND SURFACE TEMPERATURE MAPPING USING MODIS AND ASTER IMAGES IN SEMI-ARID AREA
MODIS ASTER Land Surface Temperature (LST) Emissivity
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2015/12/28
This paper presents application of the Earth Observing System (EOS) Moderate Resolution Imaging Spectroradiometer (MODIS) thermal infrared bands for Land Surface Temperature (LST) retrieval. A brief s...
ESTIMATION OF FOREST STAND PARAMETERS IN DENSITY CLASSES IN ARID AND SEMI-ARID REGIONS USING LANDSAT ETM+ DATA
FOREST STAND PARAMETERS DENSITY CLASSES
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2015/9/8
ESTIMATION OF FOREST STAND PARAMETERS IN DENSITY CLASSES IN ARID AND SEMI-ARID REGIONS USING LANDSAT ETM+ DATA.
Spectral-textural image classification in a semi arid environment
Land Cover Classification Texture Vision
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2015/8/20
Image classification can benefit from incorporating texture by enabling an increased number of classes and improving thematic accuracy.
Incorporating texture also involves special attention in a numb...
INVESTIGATION OF THE POSSIBILITY OF FOREST TYPE MAPPING IN ARID AND SEMI-ARID REGIONS USING LANDSAT ETM+ DATA
Forest Classification Accuracy Landsat Fusion Quality Soil Vegetation
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2015/7/29
Landsat ETM+ data from the National Park of Khabr in Kerman province, dating May 2000, were analyzed to investigate the
possibility of forest type mapping in arid and semi-arid regions.Quality evalu...
IMPACT OF CLIMATE AND ANALYSIS OF DESERTIFICATION PROCESSES IN SEMI ARID LAND IN ALGERIA: USING DATA OF ALSAT AND LANDSAT
Remote sensing SIG ecosystem
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2015/5/7
The degradation of natural resources in arid and semi-arid areas was highlighted dramatically during this century due to population growth and transformation of land use systems. The Algerian steppe...
AUTOMATED MAPPING OF BURNED AREAS IN SEMI-ARID ECOSYSTEMS USING MODIS TIME-SERIES IMAGERY
Bushfires Time Series Image Segmentation
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2015/5/7
Understanding spatial and temporal patterns of burned areas at regional scales, provides a long-term perspective of fire processes and its effects on ecosystems and vegetation recovery patterns, and ...
RELATIONSHIPS BETWEEN PRIMARY PRODUCTION AND CROP YIELDS IN SEMI-ARID AND ARID IRRIGATED AGRO-ECOSYSTEMS
Agriculture Crop GIS Analysis
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2015/5/6
In semi-arid areas within the MENA region, food security problems are the main problematic imposed. Remote sensing can be a promising too early diagnose food shortages and further prevent the popula...
Storm-wise sediment yield prediction using hillslope erosion model in semi-arid abundant lands
abundant lands erosion model hillslope erosion model (HEM) Iran Khosbijan Research Centre
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2015/3/9
Evaluation of soil erosion by existing models is needed as an important tool for managerial purposes in designation of proper water and soil conservation techniques. The present study aimed to assess ...
Soil moisture measurements by synthetic aperture radar and scatterometers in the arid and semi-arid environment
Radar Soil-water-content Scatterometer Negev
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2015/2/5
Water is a scarce commodity in desert regions; yet, most remote sensing experiments of soil
moisture have been conducted in temperate areas. The ability to detect and reliably assess soil
moisture i...
Evidence that acidifi cation-induced declines in plant diversity and productivity are mediated by changes in below-ground communities and soil properties in a semi-arid steppe
base mineral cations nitrogen cycling plant species richness plant–soil (belowground) interactions productivity semi-arid steppe soil aluminium ions soil microbial organisms soil nematodes structural equation modelling
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2015/2/4
Anthropogenic acid deposition–induced soil acidification is one of the major threats to biodiversity, ecosystem functioning and services. Few studies, however, have explored in detail how above-ground...