| 气候变化与人类活动对玛曲地区生态环境的影响 |
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| 引用本文： | 韩海涛,祝小妮.气候变化与人类活动对玛曲地区生态环境的影响[J].中国沙漠,2007,27(4):608-613. |
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| 作者姓名： | 韩海涛 祝小妮 |
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| 作者单位： | 甘肃省气象信息中心,甘肃,兰州,730020 |
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| 摘 要： | 根据玛曲1971—2005年的气温、降水、大风、沙尘暴等资料的变化及其对该地区生态环境的影响作了分析。结果表明：30 a来,玛曲地区的气温在逐渐升高,降水有下降趋势,蒸发量也有下降趋势,年大风、沙尘暴年发生日数也呈下降趋势,干旱程度表现出增加趋势。人类的过度放牧和滥伐乱挖造成玛曲地区植被生产力下降、草原退化、土地沙漠化加剧。气候暖干化和人类不合理的开采活动是造成该地区生态环境恶化的重要原因.
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| 关 键 词： | 气候变化 人类活动 生态环境 甘肃玛曲地区 |
| 文章编号： | 1000-694X（2007）04-0608-06 |
| 收稿时间： | 2006-02-17 |
| 修稿时间： | 2006-02-172006-04-17 |
Climate Change and Human Activities of Maqu Area and Its Impact on Eco-Environment |
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| HAN Hai-tao,ZHU Xiao-ni.Climate Change and Human Activities of Maqu Area and Its Impact on Eco-Environment[J].Journal of Desert Research,2007,27(4):608-613. |
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| Authors: | HAN Hai-tao ZHU Xiao-ni |
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| Institution: | Gansu Province Meteorological Information Center, Lanzhou 730020, China |
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| Abstract: | Using climatic data of precipitation, temperature, gale and dust from 1971 to 2000 in Maqu in Gansu, the paper analyzed the characteristics of climatic change in 30 years and its impact on Eco-environment in this region. The results show that the weather of gale and dust was still decreasing under the circumstances of precipitation reducing and temperature elevating, while the degree of aridity appeared increasing trend. The over grazing, denudating and digging of human has induced the vegetation productivity decrease, grassland degeneration, land desertification further severity in Maqu area. So, the important reasons of resulting in the deterioration of the eco-environment in this region were the warming and drying of climate and the irrational human activities. |
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| Keywords: | climatic change human activities eco-environment Maqu area of Gansu |
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