三峡库区消落带土壤氮磷钾、pH值和有机质变化

doi:10.11707/j.1001-7488.20120302

Scientia Silvae Sinicae ›› 2012, Vol. 48 ›› Issue (3): 7-10.doi: 10.11707/j.1001-7488.20120302

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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. 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

Abstract

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

CLC Number:

X171.4

Guo Quanshui;Kang Yi;Zhao Yujuan;Hong Ming;Kong Qianqian;Nie Bihong. 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[J]. Scientia Silvae Sinicae, 2012, 48(3): 7-10.

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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

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