四旁林,是宅旁、村旁、路旁、水旁等树木的总称。由于其与人们的生产、生活极为密切,组成与结构又别于一般森林,因而它是一个特殊的树木群体和人工林类型。河南地处中原,有广大的平原和丘陵区,四旁林的面积很大(据估测全省四旁林面积约114.6公顷),株数很多(1980年估测为103718.1万株),立木蓄积3105.6万立方米,占全省林木总蓄积的45.5％。同时,四旁林在全省分布比较均匀,相互联结成网,对生态平衡、环境保护、农牧业生产以及人民生活等具有十分重要的意义,是河南林业重要的组成部分。因 Quarters is surrounded by forest, is next to the house, next to the village, roadside, water and other trees collectively. It is a special type of tree group and plantation because of its close relationship with people’s production and life and its composition and structure as well as the general forest. Henan is located in the central plains and has vast plains and hilly areas. The size of the four-sided forest is very large (an estimated 114.6 hectares of forest is covered by the four sides of the province), with a large number of trees (estimated to be 1,037.181 million in 1980) and 31.556 million Cubic meter, accounting for 45.5% of the total forest area of ​​the province. At the same time, the four forests are distributed evenly in the province and are interconnected into networks. They are of great significance to ecological balance, environmental protection, production of agricultural and animal husbandry and people’s livelihood, and are an important part of Henan forestry. because