欢迎访问林业科学,今天是

林业科学 ›› 2012, Vol. 48 ›› Issue (3): 7-10.doi: 10.11707/j.1001-7488.20120302

• 论文 • 上一篇    下一篇

三峡库区消落带土壤氮磷钾、pH值和有机质变化

郭泉水1, 康义2, 赵玉娟1, 洪明1, 孔倩倩3, 聂必红4   

  1. 1. 中国林业科学研究院森林生态环境与保护研究所 国家林业局森林生态环境重点实验室 北京 100091;2. 河北省塞罕坝机械林场 围场 068466;3. 广西贺州市林业科学研究所 贺州 543100;4. 重庆市巫山县林业局 巫山 404700
  • 收稿日期:2010-12-21 修回日期:2011-12-29 出版日期:2012-03-25 发布日期:2012-03-25

Changes in the Contents of N,P,K, pH and Organic Matter of the Soil Which Experienced the Hydro-Fluctuation in the Three Gorges Reservoir

Guo Quanshui1, Kang Yi2, Zhao Yujuan1, Hong Ming1, Kong Qianqian3, Nie Bihong4   

  1. 1. Research Institute of Forest Ecology, Environment and Protection, CAF Key Laboratory of Forest Ecology and Environment of State Forestry Administration Beijing 100091;2. Saihanba Mechanized Forest Farm of Hebei Weichang 068466;3. Scientific and Research Ingtitute of Forestry of Hezhou City of Guanxi Hezhou 543100;4. Wushan County Bureau of Forestry Wushan 404700
  • Received:2010-12-21 Revised:2011-12-29 Online:2012-03-25 Published:2012-03-25

摘要:

在三峡库区消落带设置固定监测样地,研究消落带首次经历水库水位涨落后土壤氮磷钾含量、pH值和有机质含量的变化特征。结果表明: 受三峡水库水位涨落影响,消落带0~10,10~20和20~30 cm土层的速效氮含量下降41.53%~59.87%,速效磷含量下降5.26%~36.76%,速效钾含量下降3.55%~45.56%,全氮含量下降9.52%~40.00%,土壤有机质含量下降7.62%~37.83%,全磷和全钾含量基本上没有变化,土壤pH值略有变化,变幅为1.73%~9.58%。

关键词: 消落带, 土壤氮磷钾, pH值, 有机质, 变化, 三峡库区

Abstract:

Setting monitoring transect in the middle and shallow water area (altitude 156-172 m) in Three Gorges reservoir hydro-fluctuation belt to research the changing characteristics of the contents of N, P, K, pH and organic matter of the soil which experienced the influence of fluctuation the first time. The results showed that by the influence of water level fluctuating, contents of soil N, P, K, pH and organic matter had reduced in different soil layers in hydro-fluctuation belt. The available N decreased by 41.53%-59.87%, available P decreased by 5.26%-36.76%, available K decreased by 3.55%-45.56%, total N decreased by 9.52%-40.00%, total P had no change generally, total K had decreased a little, content of organic material decreased by 7.62%-37.83%%, pH value turned to neutral, changed by 1.73%-9.58%.

Key words: hydro-fluctuation belt, soil N, P, K, pH, organic matter, changes, Three Gorges reservoir

中图分类号: