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学科主题: Soil Science
题名: Impacts of Choerospondias axillaris growth on acidity of Udic Ferrosols in subtropical China
作者: Li, QM; Wang, XX; Bi, SP
通讯作者: Wang, XX, Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
关键词: acidification ; Choerospondias axillaris ; Udic Ferrosols
刊名: PEDOSPHERE
发表日期: 2005-02-01
卷: 15, 期:1, 页:95-102
收录类别: SCI
文章类型: Article
部门归属: Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China; Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China; Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China
WOS标题词: Science & Technology ; Life Sciences & Biomedicine
类目[WOS]: Soil Science
研究领域[WOS]: Agriculture
摘要: Changes in acidity of Udic Ferrosols, caused by growth of Choerospondias axillaris (Roxb.) Burtt et Hill, in comparison to wild grass, were investigated for pH distribution in the soil profile, exchangeable acidity, and cation status in the soil leachate of a simulated leaching experiment. Soils were sampled in profiles at 5 cm intervals to a depth of 100 cm. In the 1.5-60 cm layer the soils with 10-year old C. axillaris had significantly lower pH (P < 0.05), with the largest difference being 0.41: and in the 25-75 cm soil depths, especially in the 30-55 cm layer, the soils had a significantly higher exchangeable acidity, ranging 1.93 to 3.02 cmol(c) kg(-1). There was also higher aluminum, potassium, and sodium contents in the soil leachate under C. axillaris than with wild grasses. This suggested that the growth of C. axillaris accelerated acidification of Udic Ferrosols and promoted soil clay mineral weathering.
英文摘要: Changes in acidity of Udic Ferrosols, caused by growth of Choerospondias axillaris (Roxb.) Burtt et Hill, in comparison to wild grass, were investigated for pH distribution in the soil profile, exchangeable acidity, and cation status in the soil leachate of a simulated leaching experiment. Soils were sampled in profiles at 5 cm intervals to a depth of 100 cm. In the 1.5-60 cm layer the soils with 10-year old C. axillaris had significantly lower pH (P < 0.05), with the largest difference being 0.41: and in the 25-75 cm soil depths, especially in the 30-55 cm layer, the soils had a significantly higher exchangeable acidity, ranging 1.93 to 3.02 cmol(c) kg(-1). There was also higher aluminum, potassium, and sodium contents in the soil leachate under C. axillaris than with wild grasses. This suggested that the growth of C. axillaris accelerated acidification of Udic Ferrosols and promoted soil clay mineral weathering.
关键词[WOS]: WEATHERING RATES ; FOREST SOILS ; ACIDIFICATION
语种: 英语
WOS记录号: WOS:000226946600014
ISSN号: 1002-0160
Citation statistics:
内容类型: 期刊论文
URI标识: http://ir.ihb.ac.cn/handle/152342/9324
Appears in Collections:中科院水生所知识产出(2009年前)_期刊论文

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作者单位: 1.Chinese Acad Sci, Inst Soil Sci, Nanjing 210008, Peoples R China
2.Chinese Acad Sci, Inst Hydrobiol, Wuhan 430072, Peoples R China
3.Nanjing Univ, Dept Chem, Nanjing 210093, Peoples R China

Recommended Citation:
LI Qing-Man; WANG Xing-Xiang and BI Shu-Ping.Impacts of Choerospondias axillaris growth on acidity of Udic Ferrosols in subtropical China,PEDOSPHERE,2005,15(1):95-102
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