红壤丘陵区坚果林不同水土保持措施的效益——以浙江省临安山核桃林为例

Benefits from Soil and Water Conservation Measures Under Red-soil Nut Forest—Taking Hickory Forest in Lin'an City of Zhejiang Province as an Example

[目的]分析红壤丘陵区坚果林下布设不同水土保持措施下水土保持效益,为该区生态恢复建设提供支持。[方法]在浙江省临安市建立山核桃试验区,布设不同的水土保持措施野外定位观测试验小区与监测设施,研究山核桃林采取不同水土保持措施后的水土保持成效。[结果]从蓄水保土效益来看,表现为:茶树缓冲带>套种杨桐>空白对照小区。因此,山核桃林林下布设截、排水沟等措施,结合套种杨桐、栽植茶树缓冲带等经济作物,蓄水保土效益显著,既防治了水土流失,又增加了经济效益。[结论]实施各项水土保措施的山核桃林均具有很好的蓄水保土效益,且布设截水沟工程措施的蓄水保土效益尤其显著。

[Objective] Conservation benefits of soil and water under different measures of nuts forest in red soil hilly region were demonstrated to provide support for ecological restoration and construction in this area.[Methods] Experimental plots in hickory forest zone in Lin＇an City, Zhejiang Province were setted with different measures and field monitoring facilities. Effects of soil and water conservation were demonstrated.[Results] The benefits of different conservation measures ranked as：tea tree buffer zone 〉 Yangtong 〉 blank control. The construction of intercepting ditch, drainage ditch, plus the interplanting of Yangtong and other economic crops as tea tree under hickory forest hadremarkable conservation benefits in preventing and controlling of soil and water loss, and also in economic benefits.[Conclusion] The implement of soil and water conservation measures of hickory forest have great water storage and soil conservation benefits, especially for the engineering measures of interception ditch, it is significant.