Research on Vegetation Distribution and Its Relationship with Topography and Groundwater Depth in the Hailiutu River Basinoft-com:office:office" />
详细信息
- 责任者：Jin Xiaomei (School of Water Resources and Environment ; China University of Geosciences ; Beijing 100083 ; China) ; Zhang Qiang
- 刊名：Earth Science Frontiers
- 出版年：2013
- 卷期：20(3)
- 页码：p.227-233
- issnNo：ISSN1005-2321
- isbnNo：CN11-3370/P
摘要
Research on topography and groundwater dependent vegetation in arid areas is a key to the understanding of vegetation eco-hydrological process.Owing to little precipitation,vegetation is closely related to topography and groundwater depth in the arid inland areas of Northwest China.The study of ecological impact of topography and groundwater in large scale has great significance on environmental protection and restoration.In this study,we investigated the relationship of vegetation to topography and groundwater depth in the Hailiutu River Basin,Erdos Plateau of China,by combining remote sensing with topography and in-situ groundwater observations.Our results demonstrated that the vegetation growth is gradually worse from river valley,sand beach,sand dune to sand ground.The vegetation developed well when the elevation is 1220 m.The groundwater depth has impact on vegetation when it varies between 1 m and 5 m.The climate and soil are the main control factors when the groundwater depth is larger than 5 m and the groundwater depth has little effect on vegetation.