Is salinity the main ecological factor that influences foliar nutrient resorption of desert plants in a hyper-arid environment?

摘要

Distribution of gravel desert and saline land in northwest China (a) and in the study area (b), and examples of saline habitat (c) and gravel desert habitat (d) of the study area. The map depicted in (a) and (b) were plotted based on the 1:100000 desertification data of China, the data were free to acquire from the “Environmental & Ecological Science Data Center for West China, National Natural Science Foundation of China” (http://westdc.westgis.ac.cn). The photos depicted in (c) and (d) were taken by the author in July 2016