盐渍化沼泽化潜在威胁 potential soil Salinization and swamping
这时期芦苇沼泽主要转换为耕地、天然植被和盐渍化土地。
This period, the marsh reeds mainly transform into farmland, natural vegetation and salinization land.
盐渍化土地面积从1973 - 1990年增加了24.24%，增长的面积主要来自于天然植被和芦苇沼泽。
The area of Salinization land had increased of 24.24% from 1973 to 1990, this part of area converted mainly from natural vegetation and marsh reeds.
盐渍化土壤类型主要为典型盐土、沼泽盐土、碱化盐土和干旱盐土。
The factors causing soil salinization include natural factors such as climate, hydrological and geological conditions, and human-made factors, such as irrigation patterns and cultivating system.
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