农田防护林作为“三北”防护林建设的重要组成部分在黑龙江省西部防护林中占有相当大的比重，保护了大面积基本农田免受风沙及土壤侵蚀的危害。但同时也存在着胁地的负效应。农田防护林建设之初，人们认为“林带胁地一条线，农田受益一大片”，胁地的问题没有得到足够的重视。 As an important part of the “Three North” shelterbelt construction, farmland shelterbelts occupy a large proportion in the western shelterbelt of Heilongjiang Province, which protects large area of ​​basic farmland from sand and soil erosion. However, there is also a negative effect of threatening land. At the beginning of the construction of farmland shelterbelts, people think that “the land is threatened with a line and the farmland benefits a large area”, and the issue of threatening land has not been given enough attention.