涵养林:水源涵养林，水土保持林，防风固沙林，农田、牧场防护林，护岸林、护路林。
论述了水源涵养林的生态效益及其计量方法和模型；
The estimating methods and models, the benefit compensation principles were discussed also.
强调了西北地区水源涵养林建设的水文效应及其重要意义。
Meanwhile, it was emphasized that the hydrological effect of construction of water conservation forest and its important significance in northwest china.
文章阐述了水源涵养林对水土保持、涵养和净化水资源等的效能；
The paper summarized the main benefits of water conservation forest such as soil and water conservation, water purification.
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