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当前位置: 首页 > 文章 > 北方农牧交错带生态系统自然环境变化研究——以武川县为例 中国农业资源与区划 2003,24 (05)
Position: Home > Articles > STUDY ON NATURAL ENVIRONMENT CONDITION CHANGES IN THE ECOLOGICAL SYSTEM AT THE CROSSING BELT (WUCHUAN COUNTY) OF AGRICULTURE AND ANIMAL HUSBANDRY IN NORTHERN CHINA Chinese Journal of Agricultural Resources and Regional Planning 2003,24 (05)

北方农牧交错带生态系统自然环境变化研究——以武川县为例

作  者：
潘志华;安萍莉;刘亚玲;郑大玮;妥德宝
单  位：
内蒙古农业科学院;中国农业大学资源与环境学院
关键词：
北方农牧交错带;自然环境条件;变化
摘  要：
近30多年来,北方农牧交错带生态系统的自然环境条件发生了显著变化。以武川县为例的研究结果表明,降水量呈减少趋势,年平均减少约为2.7mm;年平均气温呈上升趋势,年平均上升0.02℃;年平均相对湿度呈下降趋势,年平均下降0.06;年平均风速呈下降趋势,年平均下降0.04m/s;年蒸发量呈减少趋势,年平均下降15.6mm;土壤养分含量呈迅速下降趋势,20世纪90年代初,土壤肥力已经下降到非常低的水平。
译  名：
STUDY ON NATURAL ENVIRONMENT CONDITION CHANGES IN THE ECOLOGICAL SYSTEM AT THE CROSSING BELT (WUCHUAN COUNTY) OF AGRICULTURE AND ANIMAL HUSBANDRY IN NORTHERN CHINA
作  者：
Pan Zhihua, An Pingli ,Liu Yaling, Zheng Dawei ,Sui Debao (1. College of Resources and Environment, China Agriculture University, Beijing 100094; 2. Inner Mongolian Academy of Agriculture Sciences, Huhehaote 010031)
关键词：
the crossing belt of agriculture and animal husbandry in northern China; natural environment condi- tion ;change
摘  要：
In the recent over 30 years, remarkable changes have taken place in the natural environment conditions of the ecological system at the crossing belt (Wuchuan County) of agriculture and animal husbandry. Research results show that taking Wuchuan County as an example, there is a decreasing tendency in rainfall quantity , which has decreased around 2. 7mm annually; there is an increasing tendency in average annual temperature, with an average increase of 0. 02℃ annually; there is a declining tendency in annual average relative humility with an average decrease of 0.06; there is a falling tendency in average wind speed annually, with an average decrease of 0.04 m/s annually; there is also a decreasing tendency in annual vaporization quantity with an average decrease of 15.6mm annually; and there is a rapid decrease in nutrition content of the soil. Soil fertility has dropped to a very low level by early 1990's of the 20th century.

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