%0 Journal Article
%T On Total Salt Amount and Salt Accumulation in Surface Soil in Tobacco Fields in Hunan<br>湖南植烟土壤盐分及其表聚特征研究
%A SHI Li-hong
%A LUO Jian-xin
%A XIANG Peng-hua
%A ZHAO Li
%A HUANG Hai-long
%A <br>石丽红
%A 罗建新
%A 向鹏华
%A 赵莉
%A 黄海龙
%J 土壤
%D 2008
%I 
%X Surface soils of tobacco fields in Hunan Province were collected to analyze total salt concentrations and composition of ions. The results showed that a remarkable salt accumulation occured in surface soils after tobacco leaves were harvested. Total salt concentration reached up to 4.17 g/kg, near the intensely salinized soil. Higher salt accumulation in surface soil occured in tobacco-rice rotation than in tobacco dryland. Moreover, the highest total salt amount of surface soil in tobacco-rice rotation fields happened in Hengyang, and followed by Yongzhou and Chenzhou. In addition, NO3-, SO42-, Ca2+ and K+ consisted of main ions in surface soils in the tobacco-rice rotation fields, which accounted for 95.21% of total salt amount.
%K Hunan
%K Tobacco field
%K Total salt
%K Salt accumulation in surface soil
%K Composition of ions<br>湖南
%K 植烟土壤
%K 总盐
%K 盐分表聚
%K 盐分离子组成
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=56F69E970C6E5190CDB409D28DD0E3C6&aid=69037D4804EAD6A5E6CAFB7B47C6149E&yid=67289AFF6305E306&vid=1371F55DA51B6E64&iid=E158A972A605785F&sid=EF9E84B2DA79FF23&eid=D9D6C3CD78BED2C5&journal_id=0253-9829&journal_name=土壤&referenced_num=0&reference_num=11