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[1]ZHANG Jun,ZHAO Zhen-hong,MA Hong-yun,et al.Study on Relationship between Groundwater and Vegetation in Arid and Semiarid Region Based on Survival Regions of Plant Species[J].Research of Soil and Water Conservation,2014,21(05):240-243.

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Study on Relationship between Groundwater and Vegetation in Arid and Semiarid Region Based on Survival Regions of Plant Species

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 21 Number of periods: 2014 05 Page number: 240-243 Column: Public date: 2014-10-28

Title:: Study on Relationship between Groundwater and Vegetation in Arid and Semiarid Region Based on Survival Regions of Plant Species

Author(s):: ZHANG Jun, ZHAO Zhen-hong, MA Hong-yun, WANG Dong; Key Laboratory of Groundwater and Ecology in Arid and Semi-arid Areas, CGS, Xi’an center of China Geological Survey, Xi’an 710054, China

Keywords:: arid and semiarid region; soil moisture; soil salinity; survival regions; vegetation types

CLC:: P641.69

DOI:: -

Abstract:: Soil moisture and salinity are the most direct and important ecological environmental factors for vegetation in arid and semiarid region, which are critical links of interactions between groundwater and vegetation. Ecological and hydrogeological survey was conducted in field with shallow water table in Yanchi County of Ningxia Hui Autonomous Region. The data of vegetation types and moisture and soil salinity at each investigation point were obtained. Then, moisture and salinity of soil were selected as the variables, survival regions of five dominant species were determined. Survival regions of five dominant species were mapped in a coordinate system to analyze the impact of decline of groundwater table on vegetation. The result indicates that the decline of groundwater table will bring about succession of vegetation types according to the order of halophytic, hygrophilous, xerophytic to sandy vegetation. The result shows that the map of survival regions of plant species is good at describing suitable environment of different vegetation species in arid and semi-arid region. Furthermore, survival regions of plant species can be used to predict the trend of vegetation succession species due to groundwater level change.

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