艾比湖湿地自然保护区阿其克苏河地下水特征与胡杨生长关系研究

Study on characteristics of groundwater and its impact on Populus euphratica along the banks of Aqikesu River

通过选取新疆艾比湖湿地国家级自然保护区阿其克苏河东大桥管护站至塌桥子管护站15km为研究区域,在研究区内中德合作项目胡杨样地及垂直河道胡杨、柽柳混交林处采挖地下水测点,在中德合作项目样地划分的样方内做20m×20m植被小样方,观测胡杨的长势,实验室实测地下水矿化度及主要离子(K+、Na+、Ca2+、Mg2+、Cl-、CO32-、HCO 3-、SO24-)含量,研究结果表明:研究区地下水埋深和矿化度均适宜胡杨生长,但地下水中Cl-含量高会抑制胡杨生长。

The research area is the 15-km region from Dong-daqiao station to Ta-qiaozi station in Aqikesu River which belongs to Ebinur Lake Wetland Nature Reserve groundwater samples were collected within test points of the Populus euphratica community of Sino-German cooperation projects along the banks of Aqikesu River.The growth of Populus euphratica was observed in 20m × 20m sample.Through measuring the indicators of selected groundwaters in the laboratory,such as the salinity and the major ion composition,the results proved that the depth and salinity of groundwater are suitable for Populus euphratica growth,but high levels of the Cl-content of groundwater inhibit the growth of Populus euphratica.