利用231个气象站多年平均年雨量资料估算了黄土高原地区多年平均降雨侵蚀力，并绘制了等值线图。
Average annual rainfall data from 231 weather stations were used to determine the spatial distribution of erosive rainfall.
在整理、分析黄土高原西峰等水土保持试验站径流、泥沙观测资料的基础上，研究了该地区水平梯田的蓄水保土效益。
By collecting and analyzing the survey data of runoff and sediment plots in soil and water conservation stations Xifeng et al.
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