毛乌素沙地神木县沙区农业生态系统限制因子分析
Analysis on Limiting Factors of Agricultural Ecosystem in Mu Us Sandland in Shenmu Sandy Area
马钢 1范王涛 1张阳阳1
作者信息
- 1. 陕西省土地工程建设集团有限责任公司,陕西西安710000
- 折叠
摘要
介绍了毛乌素沙地神木县沙区的概况,包括行政区划、地貌特征、植被类型,分析了该区农业生态系统非生物生态因子,发现水和土壤是该生态系统的主要限制因子,最后提出了农业生态系统水因子和土壤因子改善改良措施,采取第四系松散层孔隙潜水可满足该农业生态系统用水需求,且不影响生态用水,使用砒砂岩与沙复配成土的核心技术可有效改良土壤,提高该沙地农业生态系统生产力.
Abstract
The general situation of Mu Us Sandland in Shenmu sandy area was introduced including administrative divisions,geomorphological features,vegetation types.The non-ecological factors of agricultural ecosystem in this area were analyzed.It was found that water and soil are main limiting factors of the ecosystem.Finally,the improvement measures of agricultural ecological water factors and soil factors were put forward.Using Quaternary loose layer pore water can satisfy water demand of the agricultural ecosystem without affecting the ecological water use,the use of the core technology of the mixture of sandstone and sand can effectively improve soil quality and productivity of the agricultural ecosystem.
关键词
沙地农业生态系统/限制因子/地下水/改良土壤Key words
Sandy land agricultural ecosystem/Limiting factor/Groundwater/Soil improvement引用本文复制引用
出版年
2017
国家科技期刊平台
NSTL
维普
万方数据