摘要
风沙——丘陵区土壤资源丰富,增产潜力较大,但存在着土壤沙化、水土流失、肥力减退及盐渍化等问题。土壤养分含量低。分析表明:面积占80—90.8％的土壤缺乏有机质及有效P、Zn、Mo,71—76.8%的土壤全N、有效N、Mn、B不足。为保护和提高土壤肥力,必须合理利用土地,改善生态环境,搞好肥料基本建设。同时,煤田开发要与综合治理同步进行,并做到经济效益与生态效益并重。
Soil resources in sandy-hilly areas are abundant and hold great potentialities for yield increase. But there still exist some problems such as destification,water and soil loss degradation and salinization. The plant nutrients in soil are quite low. Results obtained from chemical analysis showed that 86—90% of areas are deficient in C and available P,Zn,Mo; 71—76.8% of areas are deficient in total N and available N,Mn,B. To increase and protect soil fertility resources, it is necessary to use land rationally,improve ecological environment and do a good work in basic fertilizer. At the same time, the coal-mine development must be carried out in synchronous comprehensive control. And economical returns and ecological benefits must beobtained simultaueonsly.
出处
《干旱地区农业研究》
CSCD
北大核心
1989年第2期25-35,共11页
Agricultural Research in the Arid Areas
