Using the concept of ecological groundwater level to evaluate shallow groundwater resources in hyperarid desert regions

摘要: This paper, based on the analysis and calculation of groundwater resources in an arid region from 1980 to 2001, put forward concept ecological level threshold for either salinity control or determination warning. The surveys suggest that soil moisture are most important environmental factors determining distribution changes vegetation. warning can be determined by using a network depth observation sites monitor gradient as reflected plant physiological characteristics. According long-term field observations within Ejin oases, varied between 0.5 m 1.5 m, 3.5 4.0 m. quantity (renewable water resources, exploitable resources) areas calculated regional information, without localized hydrogeological data. was established according development supply, available were calculated. not only enriches broadens content studies, but also helps predicting prospects development.