The effect of erosion control by agroforestry is an essential factor of little catchment planning.
农林复合系统的侵蚀控制效益是在小流域整治规划中必须考虑的重要因素。
It is also shown that the forest-grass vegetation has obvious control effect on soil erosion.
研究结果还直接表明，林草植被对土壤侵蚀有明显的控制作用。
Stream and river control works may have a serious local influence on accelerating channel erosion.
水流及河流控制工程对加速河道冲刷有严重影响。
Substantial progress has been made, but soil erosion is far from being under control.
这一切都取得了重大成就，但土壤侵蚀问题仍远未得到控制。
Substantial progress has been made, but soil erosion is far from being under control.
这一切都取得了重大成就，但土壤侵蚀问题仍远未得到控制。
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