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华北地区农田防护林主要分布在长城以南,淮河以北的河北、山东、河南三省平原地带。解放后,这一地区响应党和人民政府号召,大力营造农田防护林,获得了显著的成绩。但在树种选择上,大都是就地取材,有啥苗栽啥树,因而林带成长后,树木生长和林带防护作用,都出现了一些问题。为适应广大农村人民公社、国营农场在耕地上营造防护林带的迫切要求,笔者从1961
Farmland shelterbelts in North China are mainly distributed in the plains of Hebei, Shandong and Henan provinces to the south of the Great Wall and north of the Huaihe River. After the liberation, the region responded to the call of the party and the people’s government and vigorously created a farmland shelter forest and achieved remarkable results. However, in tree species selection, most of them are made from local materials, and what are the seedlings planted in the trees so that after the growth of the forest belt, the growth of trees and the protective effect of the forest belt all appear some problems. In order to meet the urgent needs of the majority of rural people’s communes and state-owned farms to create shelterbelts on cultivated land, the author from 1961