十年铸一剑 荒漠变绿舟

• 作 者: 路关
• 机 构: 盐池县环境保护与林业局,
• 出 处: 宁夏林业通讯
• 发表日期: 2011年02期
• 关键词: 沙化面积 沙化土地 宁夏中部干旱带 毛乌素沙地 年平均 变绿 荒漠 沙丘 封育 森林管护

盐池县地处毛乌素沙地南缘,是宁夏中部干旱带受风沙危害最严重的地区。全县年平均降水量200毫米左右,干旱少雨、风大沙多是盐池自然气候的基本特征。据1983年普查,当时全县沙化面积达539万亩,占总面积41.5%,其中严重沙化面积达200万亩,全县有75%的人口和耕地处在沙区,沙化土地占全区沙化总面积的21%。“一年一场风,从春刮到冬,沙子漫地跑,沙丘比房高”是当时生态状况的真实写照。

Yanchi County is located in the southern edge of the Mu Us desert, is the central part of Ningxia arid belt by the most dangerous areas affected by wind and sand. The county average annual rainfall of about 200 mm, drought, wind and sand is the basic characteristics of Yanchi natural climate. According to the 1983 census, the area of ​​sandification in the county was 5.39 million mu, accounting for 41.5% of the total area, of which 200 million mu were seriously affected by desertification. 75% of the population and cultivated land of the entire county is in the sand area, and desertified land accounts for desertification 21% of the total area. “A wind a year, blowing from the spring to the winter, the sand ran wild, sand dunes than the high” is a true portrayal of ecological conditions.