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关中东部的黄、渭、洛河沿岸和广大灌区,有盐碱地近百万亩,占渭南地区总面积的5.7%,相当于建国以来全地区人工林的保存面积。这里缺林少树,生态环境恶化,农业产量低,人口密度大,改善这一地区的生态环境,越来越显得紧迫。各地的经验证明,要改善生态环境,必须发展林业。而发展林业的首要问题,是解决适生树种问题。为此,我们根据省林业厅的要求,首先对关中东部盐碱地的特点和适生树种以及种植业的现状,进行了重点调查,现将调查结果整理如下。
The Yellow River, Wei River, Luo River and the vast irrigation areas in the eastern part of Guanzhong have nearly one million mu of saline-alkali land, accounting for 5.7% of the total area in Weinan, equivalent to the area reserved for planted forests in the whole region since the founding of the People’s Republic. There is a shortage of trees and forests, the deterioration of the ecological environment, low agricultural output, large population density and improving the ecological environment in this area are becoming increasingly urgent. Experience from all over the world has proven that to improve the ecological environment, forestry must be developed. The primary issue of developing forestry is to solve the problem of tree species suitable for living. To this end, according to the requirements of the Provincial Forestry Department, we first conducted a survey on the characteristics of the saline-alkali land in the Guanzhong Plain and the status quo of tree species suitable for planting and planting, and summarized the findings as follows.