天然草原在防治黄河上中游流域水土流失与土地荒漠化中的作用与地位
苏大学
The Effects and Position of Natural Grassland on Controlling Soil Erosion and Desertification in Watershed of the Middle and Upper Reaches of Yellow River
Su Daxue
. 2000, (2): 77 -81 .  DOI: 10.11733/j.issn.1007-0435.2000.02.001