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| 湖南洞庭湖区土壤酸化及其对土壤质量的影响 | |
| 引用本文： | 余涛,杨忠芳,唐金荣,宗思锋,朱翠娟,张娇,张建新,申志军.湖南洞庭湖区土壤酸化及其对土壤质量的影响[J].地学前缘,2006,13(1):98-104. |
| 作者姓名： | 余涛 杨忠芳 唐金荣 宗思锋 朱翠娟 张娇 张建新 申志军 |
| 作者单位： | 1. 中国地质大学(北京)地球科学与资源学院,北京,100083 2. 中国地质调查局,发展研究中心,北京,100037 3. 湖南省地质研究所,湖南,长沙,410007 |
| 基金项目： | 中国地质调查局地质调查项目;湖南省洞庭湖农业生态地球化学评价项目 |
| 摘 要： | 酸雨沉降引起的土壤酸化是当前全球最大的环境问题之一,湖南洞庭湖地区是中国土壤酸化非常严重的地区之一。随着土壤的酸化,Cd和Pb等有害元素的水溶态和交换态含量上升,特别是土壤在碱性至弱酸性范围内,Cd的生物活性急剧提高,给农作物安全生产带来了危害。土壤酸化还造成K、Na、Ca、Mg等盐基离子大量淋失,有益元素有效态含量也急剧减少,土壤肥力下降,养分贫瘠,土壤质量下降。针对土壤酸化带来的种种影响,提出了建议:提高能源利用率;增施有机肥,提高土壤缓冲能力;改进施肥结构;适量施用石灰、白云石粉,调整土壤pH值。 |
| 关 键 词： | 土壤酸化 土壤质量 农业安全生产 |
| 文章编号： | 1005-2321（2006）01-0098-07 |
| 收稿时间： | 2005-10-21 |
| 修稿时间： | 2005-10-212005-11-18 |
Impact of acidification on soil quality in the Dongting Lake region in Hunan Province, South China |
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| YU Tao,YANG Zhong-fang,TANG Jin-rong,ZONG Si-feng,ZHU Cui-juan,ZHANG Jiao,ZHANG Jian-xin,SHEN Zhi-jun.Impact of acidification on soil quality in the Dongting Lake region in Hunan Province, South China[J].Earth Science Frontiers,2006,13(1):98-104. | |
| Authors: | YU Tao YANG Zhong-fang TANG Jin-rong ZONG Si-feng ZHU Cui-juan ZHANG Jiao ZHANG Jian-xin SHEN Zhi-jun |
| Institution: | 1. School of Earth Science and Resources, China University of Geosciences , Beij ing 100083, China; 2. Centre of Development and Research, Geological Survey of China, Beijing 100037, China; 3. Geological Institute of Hunan ,Changsha 410007, China |
| Abstract: | JP2]Soil acidification by acid deposition is one of the most serious environmental problems in the world. Soil acidification in the Dongting Lake region in Hunan Province, South China is of great concern. The contents of some toxic elements, such as Cd and Pb, in aqueous and exchangeable form increase with enhancement of soil acidification. Especially in alkalescent or weakly acidic soil, the bioactivity of the element Cd increases sharply, harming the growth of crops. Moreover, soil acidification causes big losses of electropositive ions such as K, Na, Ca, Mg by eluviation, and rapidly decreases the available beneficial elements, therefore resulting in a reduction in soil fertility, nutrient and quality.In order to reduce the effects of soil acidification, we make four suggestions: improving utilization of energy,applying more organic fertilizer to increase buffering capacity of soil, ameliorating structure of fertilization, and suitably applying lime or dolomite powder to adjust pH value of soil. |
| Keywords: | soil acidification soil quality secure agricultural production |
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