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shui yuan han yang lin gong cheng gui hua mo shi
Author(s): 
Pages: 107-108
Year: Issue:  6
Journal: HEILONGJIANG SCIENCE AND TECLNOLOGY OF WATER CONSERVANCY

Keyword:  流域水源涵养林工程规划模式;
Abstract: 伊吗图河(王府以上)流域水源涵养林工程,规划沙棘825hm2,刺槐576hm2、紫穗槐624hm2,速生杨358hm2,果树219hm2,牧草66hm2.刺槐、紫穗槐、沙棘、速生杨等1 665株/hm2,果树1 200株/hm2.牧草籽22.5 kg/hm2,规划水平梯田108 hm2、谷坊143座、塘坝2座.通过工程治理后,年效益为保水168.38万m3,保土7.16万t.直接产生的经济效益可达1018.62万元,与治理投入417.37万元相比,产投比为2.44.生态环境有了极大的改善.
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