低山丘陵区土壤侵蚀生态工程治理模式及优化配置——以四川省宣汉县拱桥河流域为例

Scheme of Soil Erosion Control and Ecologic Measure Optimization in Hill and Mound Region——A Case Study of Gongqiao Waterside in Xuanhan County,Sichuan Province

立足于四川省宣汉县拱桥河流域4.3 km2的柏树河村,在小区观测的基础上,提出了5种低山丘陵区土壤侵蚀生态治理模式。根据小流域生态系统的特点,应用多目标优化理论,按不同的治理模式进行了生态工程治理分区,治理措施达到了优化配置,从而使小流域既成为一个水土保持防护体系单元,又成为发展商品生产基地的经济单元,创造人与自然和谐相处的生态环境,为南方丘陵地区小流域提出了一套合理的生态工程治理模式。

On the basis of long term observation on runoff test site in Gongqiao waterside in Xuanhan County, Sichuan Province, this paper puts forward five soil control schemes considering ecologic effect. Applying multipurpose optimization method, the waterside has been divided into a series of ecologic regions according to ecologic conditions and soil control schemes. Moreover, the soil control measures in each ecologic region are optimized. After management, the waterside becomes an element of soil and water conservation system and agricultural product base, and people harmony with ecologic element. The research result can offer a scheme for ecologic soil erosion control in the south China.