建立五道防线 控制水土流失

Establishment of five defensive lines for soil erosion control

自＂长治＂工程实施以来,陕西汉中市根据不同时期的发展要求分阶段提出了一系列控制水土流失的防治方略,并先后实施了1~7期工程。工程实施中,按照不同地貌区域的水土流失规律及现状,形成了＂建立五道防线,控制水土流失＂的成功治理模式和防治技术路线,经过治理,项目区取得了良好的社会、经济和生态效益。

Since the implementation of the major control engineering of soil and water conservation in upper and middle Yangtze River,according to the development requirements for different stages,Hanzhong Government of Shaanxi has proposed a series of protection and control strategies to control the water loss and soil erosion by stages,and has implemented Ⅰ-Ⅶ phases of the project successively.During the project implementation,according to the rules and status of the water loss and soil erosion in different geomorphologic regions,the ＂construction of five defensive lines＂ has been completed.The successful management mode and protection technology route for the control of the water loss and soil erosion ensured the effectiveness of the comprehensive management of the small watershed in Qinba Mountain Areas.As a result,good social,economic and ecological benefits have been achieved in the project area.