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晋西北黄土丘陵区位于黄河中游的晋陕蒙三角区内,以水土流失严重著称,是一个迫切需要治理的地区。“七五”期间,国家科技攻关项目——黄土高原综合治理,在这一地区具有代表性的河曲县砖窑沟流域设立了综合治理试验示范区(编号75—04—03—14)。经五年的综合治理,试验区的生态环境和农村经济都开始了可喜的良性循坏。本文以试验区为例,根据近几年的试验研究实践,探讨该地区的土壤环境特征以及土壤改良利用中的一些问题。
The loess hilly region in the northwest of Shanxi Province is located in the Shanxi, Shaanxi and Inner Mongolia Triangle regions in the middle reaches of the Yellow River and is known for its serious soil erosion. It is an urgent need for governance. During the “Seventh Five-year Plan” period, a national science and technology project - comprehensive management of the Loess Plateau has set up a pilot comprehensive experiment zone (No. 75-04-03-14) in the brick kiln drainage area of Hequ County in this area. After five years of comprehensive management, the ecological environment in the pilot area and the rural economy have started a gratifying virtuous course. Taking the pilot area for example, according to the experimental research and practice in recent years, this paper discusses the characteristics of soil environment and some problems in the soil improvement and utilization.