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Study on Ecological Effects of Vegetation during Groundwater Exploitation in Ordos Energy Industry Base

Author: ZhangZuoZuo
Tutor: HuFuSheng
School: Chinese Geology University (Beijing)
Course: Hydrology and Water Resources
Keywords: Remote sensing Vegetation Ecology Groundwater resources development Ordos Basin
CLC: TV213
Type: Master's thesis
Year: 2010
Downloads: 135
Quote: 2
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Abstract


The Ordos Basin in Northwest China emerging energy and chemical base , much the high degree of concern of the Party and state leaders and all levels of government . The basin is located in China 's north temperate continental arid - semi-arid climatic zones , in general rains , strong evaporation , the ecological environment is fragile . Energy base in the process of building and industrial layout by constraints on ecological environmental impact groundwater resources and water resources development in the basin , and the development and utilization of water resources needs to take into account the protection of the ecological environment . In this paper, the field survey and vegetation index NDVI analysis based on basin ecological environment for ecological clues , long time series of MODIS data , SPOT - VEGETATION data combined with remote sensing and mathematical statistics method , based on vegetation ecological environment Basin 2000 evolution of systems analysis and influencing factors , and land cover types of the study area , a detailed breakdown . Combination of NDVI and depth of the relationship and dependencies between the vegetation ecology and groundwater depth system analysis , basic determine groundwater level threshold of the different landform environmental impact of vegetation ecology sensitive areas of the study area is divided groundwater development vegetation ecological environment effects . Through the 2000-2008 vegetation index analysis , the study area, the vegetation coverage in the past 10 years gradually improved , but still low vegetation coverage in some areas , the southern basin vegetation cover variation trend needs to be improved , the protection of the ecological environment is still grim. Major land cover types of the study area is grassland , accounting for 60% of the total area in the district , including low coverage grassland ( NDVI lt ; 0.3) majority . The combined land cover classification principles using NDVI regional recognition of the arable land of the study area , the study area of arable land in 1870.5km2 . Special topography and hydrogeological conditions in the study area factor affecting NDVI analysis . Ecology - field hydrogeological survey and remote sensing quantitative analysis of the combined method , a systematic analysis of the dependencies between the of vegetation Ecology and groundwater depth and delineation of groundwater resources in the development of vegetation ecological sensitivity partition . Through the evolution of the Ordos Basin vegetation trend analysis, to provide a basis for the energy base of groundwater development and protection of the ecological environment , and promote the harmonious development of human resources and environment .

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CLC: > Industrial Technology > Hydraulic Engineering > Water resources in tune to check with the Water Resources Planning > Water Resources Development
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