论文部分内容阅读
大面积营造农田防护林可降低风速,减少土壤风蚀,调节农田小气候,促进农作物高产稳产.但遇到冬季降雪量大的年份,林缘积雪对农业生产会造成危害。提高农田防护林防护效益。减轻林绿雪害的措施如下。1完善农田林网建设a.实行窄林带小阿格平原地区主带间距400m,林带占耕地
Large areas to create farmland shelterbelts can reduce wind speed, reduce soil erosion, regulate farmland microclimate, and promote high and stable crop yield. However, in the year when snowfall is heavy in winter, the snow cover on the edge of the forest will endanger the agricultural production. Improve the Benefit of Farmland Shelterbelt Protection. Measures to reduce snow damage are as follows. A perfect farmland network construction a. The implementation of narrow belt Aga Plains area main belt spacing 400m, forest belt farmland