Effect of groundwater depth on riparian plant diversity along riverside-desert gradients in the Tarim River

作     者：Yong Zeng Chengyi Zhao Jun Li Yan Li Guanghui Lv Tong Liu 

作者机构：State Key Laboratory of Desert and Oasis EcologyXinjiang Institute of Ecology and GeographyChinese Academy of Sciences818 South Beijing RoadUrumqi 830011China College of Resources and Environment SciencesXinjiang University14 Shengli RoadUrumqi 830046China University of Chinese Academy of Sciences55 East Zhongguancun East RoadBeijing 100049China Land Science Research CenterNanjing University of Information Science&Technology219 Ningliu RoadNanjing 210044China College of Life SciencesShihezi University4 North RoadShihezi 832003XinjiangChina 

出 版 物：《Journal of Plant Ecology》 (植物生态学报（英文版）)

年 卷 期：2019年第12卷第3期

页      面：564-573页

核心收录：

学科分类：0710[理学-生物学] 0830[工学-环境科学与工程（可授工学、理学、农学学位）] 081803[工学-地质工程] 08[工学] 0818[工学-地质资源与地质工程] 0901[农学-作物学] 0902[农学-园艺学] 0713[理学-生态学] 

基　　金：This study was funded by the Key National Natural Science Foundation project(U1403281 41671030)and startup Foundation for Introducing Talent of NUIST 

主　　题：vegetation community distance from river groundwater depth Tarim River 

摘      要：Aims Riparian plant diversity is sensitive to changes in groundwater in arid ***,little is known about how plant diversity responds to changes in environment along riverside-desert gradi-ents in riparian *** objectives were to(i)identify ri-parian plant diversity along riverside-desert gradients in Tarim desert riparian forests,(ii)analyze the impact of environment variables on plant diversity,(iii)determine the optimum groundwater depth for different plant *** Six transects 90 quadrats(with each size 100 m×100 m)distributed vertically to river bed along riverside-desert gradients~30 km in length were *** each quadrat,the morphological features of riparian plant communities were measured,and the groundwater depth,soil water,soil salinity,soil nutrient were also monitored at same *** Finding Three distinct vegetation communities were identified based on cover and richness in the tree,shrub and herb layers:the riparian zone,the transitional zone and the desert margin *** spe-cies were indicators of the three vegetation *** plant diversity was influenced by groundwater depth,distance from river,soil moisture content,soil salinity and soil nutrient by redundancy *** response to groundwater depth,the op-timal groundwater depths for species diversity,evenness and shrub cover were 2.8,2.7 and 3.7 m,***,maintaining high plant diversity requires managers to ensure stable groundwater depth for different plant life-forms rather than for some of them.