此外还以黄土高原水土流失区为例，介绍了水土保持林有效覆盖率的确定方法。
Finallv the soil and water loss re-gion in Loess Plateau was exampled to introduce the determining method of effective cover rate.
黄土高原是我国水土流失最严重的地区。多年来，水土保持和科技部门，对这一地区如何防治的问题上，做了大量的有益的工作。
For many years, a lot of helpful work aimed at controlling soil erosion has been completed on the loess plateau which is the most severely eroded area of China.
本文以调查材料与科研成果为依据，阐述了对黄土高原地区开展水土保持综合治理与经济开发的意见。
On the basis of the investigation and experimental researches, the authors made their Suggestions on the comprehensive management of the loess plateau and development of agricultural economy there.
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