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黑龙江垦区水系众多,洪涝灾害频繁发生。为把防水治水与林业生态工程建设结合起来,垦区营造了大量江河堤坝防护林,并对其营造技术进行了研究。按照水系大小和堤坝的重要程度,提出了河、库单侧堤坝防护林、主要及重点江河堤坝防护林和一般堤坝防护林3种典型堤坝防护林营造技术。经观测,洪水期10~20m宽生长茂密、半淹没灌木防护林带,可平息60~70cm高波浪,减少堤坝淘刷29%,减少堤坝水土流失173m3/km。并且由于堤坝防护林对堤坝的保护作用,可减少堤坝维护投资2.73万元/km,节省清淤费用11.9万元/km。
Heilongjiang reclamation area many water, frequent floods and disasters. In order to combine waterproofing and water conservancy with forestry eco-engineering construction, a great deal of rivers and dams shelterbelt have been built up in the reclamation area and the technology for its construction has been studied. According to the size of water system and the importance of dykes, three kinds of shelterbelts, such as shelterbelts of rivers and reservoirs, three types of typical shelterbelts for shelterbelts, such as the main dam shelterbelts and the general embankment shelterbelts were proposed. After the observation, the flood period of 10 ~ 20m wide and densely covered, semi-submerged shrub shelterbelts, can calm the high wave of 60 ~ 70cm, reduce the scour dam 29%, reduce the dam soil and water loss of 173m3 / km. And due to the protective effect of the embankment shelterbelt on the embankment, it can reduce the investment of embankment maintenance by RMB 27,300 / km, and save the cost of clearing and silting by 119,000 yuan / km.