[1]YANG Li-yong,WU Xian-hua,ZHAO Bin,et al.Effects of Different Land Uses on Profile Variability of Soil Nutrients in Chaihe Basin of Dianchi Lake[J].Research of Soil and Water Conservation,2012,19(05):95-99.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 05
Page number:
95-99
Column:
Public date:
2012-10-20
- Title:
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Effects of Different Land Uses on Profile Variability of Soil Nutrients in Chaihe Basin of Dianchi Lake
- Author(s):
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YANG Li-yong1, WU Xian-hua1,2, ZHAO Bin1,2, WU Bin2, WANG Quan1,2
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1. Colleges of Resources and Environment, Yuxi Normal University, Yuxi, Yunnan 653100, China;
2. Yuxi Research Center of Ecological Environment of Plateau Lakes, Yuxi Normal University, Yuxi, Yunnan 653100, China
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- Keywords:
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land use; soil nutrient; vertical distribution; Chaihe Basin
- CLC:
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S153.6
- DOI:
-
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- Abstract:
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The vertical distributions of soil nutrients in the profile of 0-100 cm depth under different land uses such as flat facility agriculture, flat traditional agriculture, slop land, abandoned land and woodlands in the Chaihe Basin of Dianchi Lake were investigated, and the effect of different land uses on nutrient distribution was discussed. The results indicated that:(1) the rank order of total nitrogen(TN) contents in the soils of 0-100 cm depth for different land uses was facility agriculture > traditional agriculture > abandoned land > slop land > woodland, and the TN concentrations in the soil with facility agriculture were significantly higher than these in slope land and woodland(P<0.05). The distribution of TN contents showed significant difference primarily in the depth of 0-80 cm. The TN contents decreased from top to bottom in the soil profile. However, it has significant differences between different soil layers for different land uses;(2) the contents of soil total phosphorus(TP) in the depth of 0-100 cm for different land uses followed the order of traditional agriculture > facility agriculture > slope land > woodland > abandoned land, and it didn’t show significant difference in the depth of 0-100 cm. The contents of soil TP at five soil layers followed the order of abandoned land traditional agriculture > abandoned land > slop land > woodland, and the SOM in the facility agriculture is significantly higher than these in the slop land and woodland. It didn’t show significant difference between land uses in five soil layers but for the difference between facility agriculture and slop land or woodland in the depth of 20-40 cm. The contents of SOM decreased in soil depths down the soil profile. However, it has significant differences between different soil layers under different land uses.