%0 Journal Article
%T Phosphorus Sorption and Desorption of Agricultural Soils under Different Land Uses<br>不同利用方式下农田土壤对磷的吸持与解吸特征
%A Gao Chao
%A Zhang Taolin
%A Wu Weidong
%A <br>高超
%A 吴蔚东
%A 张桃林
%J 环境科学
%D 2001
%I 
%X The potential of P loss from soils under different land uses in Taihu Lake watershed was evaluated by laboratory experiment. It was shown that although the P sorption capacity of paddy soils under oxidized conditions were little lower than that of dryland soils the risks of P loss from the former via runoff and leaching were lower than that from the latter, because the soil P levels of the former were much lower than that of the latter. For most paddy soils the P sorption capacity increased and the P release decreased under reduced conditions than that under oxidized conditions and this was attributed to the formation of amorphous Fe2+ hydroxides which have a greater surface area and more P sorption sites than well crystallized Fe3+ oxides.
%K soil phosphorus
%K nonpoint sources
%K oxidized and reduced conditions
%K P adsorption<br>土壤磷素
%K 非点源污染
%K 氧化还原
%K 吸持作用
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=3FBF66C83495A657&yid=14E7EF987E4155E6&vid=BC12EA701C895178&iid=E158A972A605785F&sid=5D71B28100102720&eid=AA76E167F386B6B3&journal_id=0250-3301&journal_name=环境科学&referenced_num=26&reference_num=27