Wetlands Rave peculiar hydrological regulating functions due to their peculiar soil hydro-physical properties and special geographical sites in a watershed.
湿地在流域中由于特殊的水理性质和地理位置而具有特殊的水文调节功能。
The paper analyzes the harmfulness of saline - alkali soil to trees and woods, and simply elaborates the measures for soil improvement concerning physical, hydrological and chemical aspects.
分析盐碱地对树木的危害，阐述通过物理、水利和化学土壤改良的措施；
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