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蓬莱县地处胶东的北部沿海,海岸线长180华里,受风沙侵蚀,农业减产或绝产的农田面积达3万亩。认真总结经验,植树造林防止风沙,是一项十分迫切的工作。最近,我们分析研究了本县聂家大队营造沿海防护林的技术经验,现介绍如下供参考。 该队有2500亩荒海滩,近三十年坚持以林护农,以林促农的方针,在海滩上营造防护林带11条(主林带8条),总长25华里。防护效益显著,首先是小气候得到显著改善,比无林区的风速降低30～40％,蒸发量降低8～13％,空气相对湿度明
Penglai County is located in the northern coast of Jiaodong, the coastline of 180 li, erosion by the wind and sand, agricultural output reduction or total area of 30000 acres of farmland. To seriously sum up experience, afforestation and prevent sand, is a very urgent task. Recently, we have analyzed and studied the technical experience of the Niejia brigade in this county in creating coastal shelterbelt, and are introduced below for reference. The team has 2,500 acres of wasteland beach, nearly 30 years adhere to the principle of forest and agriculture, to promote agriculture policy, to create 11 shelterbelt (main forest belt 8) on the beach, the total length of 25 li. The protection benefit is obvious. Firstly, the microclimate is significantly improved, the wind speed is reduced by 30-40% and the evaporation is reduced by 8-13% compared with the non-forest area. The relative humidity of the air