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中国农学通报

中国农学通报 ›› 2011, Vol. 27 ›› Issue (20): 1-5.

• 畜牧 动物医学 蚕 蜂 •    下一篇

人为干扰对玛曲高寒退化草地的影响

田福平 陈子萱   

  • 收稿日期:2011-03-14 修回日期:2011-03-31 出版日期:2011-08-15 发布日期:2011-08-15
  • 基金资助:

    甘肃省科技攻关项目“黄河首曲玛曲县退化草地改良模式与综合生产力提高途径研究”和基本科研业务费

Effects of artificial disturbance on Maqu Alpine Degraded Meadow

  • Received:2011-03-14 Revised:2011-03-31 Online:2011-08-15 Published:2011-08-15

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摘要：

摘要：近年来玛曲高寒草地退化日趋严重，位于黄河第一弯的甘肃省玛曲县是黄河径流重要的汇集区和黄河上游至源头的重要水源涵养区。补充黄河水量约达45%。但由于人口和牲畜的增加，掠夺式经营使草场退化严重，湿地萎缩。全县近90%的天然草地出现了不同程度的退化和沙化，其中沙化面积达5×104hm2以上，且每年以10.8％的速度蔓延。文章综述了近年来人为干扰对玛曲高寒退化草地的影响，对玛曲县高寒草地生态环境恢复和沙漠化防治有重要意义。

关键词: 丙基酚, 丙基酚, 百里香酚, 香芹酚, 丁香酚, 朱砂叶螨, 杀螨活性

Abstract:

Abstract：In recent years degradation of Tibetan plateau Maqu alpine meadow has become increasingly serious. Maqu County of Gansu Province located in the first bend of the Yellow River, which is the main catchment area and the important water sources conservation areas of upper Yellow River, it added Yellow River water about 45%. However, nearly 90% of the natural meadow has appeared degradation and made wetlands shrinking in Maqu County for increasing in population and livestock, the predatory business to serious degradation of meadows. Desertification area of more than 5×104 hm2, and the annual increasing rate is 10.8%. The paper reviews recent effects of artificial disturbance on Maqu Alpine Degraded Meadow. It has important significance to Maqu County of alpine grassland ecological environment restoration and desertification control.