zone of erosion

Numerous ecological and environmental problems are arisen since it is located in the pastoral areas of northern China and the transition zone of desert and the Loess Plateau, such as the serious desertification and soil erosion, and a series of new environmental problems from coal mining.

该区地处我国多个过渡区上，存在着严重的生态环境问题，近年来煤炭开发又带来的一系列新的问题，生态环境极为脆弱。

According to erosion vertical zone distribution in the loess hilly and gully region, the methods for demarcating distribution slope location of soil erosion patterns at small watershed are put forward.

根据黄土丘陵沟壑区侵蚀产沙垂直分带性规律，提出小流域土壤侵蚀方式发生部位界定方法。

Soil erosion in hilly gully region of the Loess Plateau has clear sheet erosion zone, rill erosion zone and shallow gully erosion zone from watershed to gully edge.

黄土丘陵沟壑区梁峁坡面从分水岭到沟缘线土壤侵蚀明显表现为溅蚀片蚀带、细沟侵蚀带、浅沟侵蚀带。

In calculation for deposition and erosion of the varying back water zone of the Three-Gorges Project, the calculated results of the mathematical model are in close agreement with both the field measured results and the experimental results obtained from the physical model.

在三峡工程变动回水区泥沙冲淤计算中，本模式的计算结果既与天然资料相一致，又与实物模型的试验结果相吻合。

The erosion status, characteristics and reasons of main coastal erosion zone of China were briefly analyzed.

论述了我国主要海岸侵蚀区的侵蚀现状 、 特点及原因.