%0 Journal Article
%T Degradation of Carbendazim in Paddy Soil and the Influencing Factors<br>多菌灵在农田土壤中的降解及其影响因子研究
%A XIAO Wen-dan
%A YANG Xiao-e
%A LI Ting-qiang
%A <br>肖文丹
%A 杨肖娥
%A 李廷强
%J 环境科学
%D 2012
%I 
%X The influences of microorganism, soil moisture and cadmium (Cd) on degradation of carbendazim in paddy soil were investigated with laboratory microcosm experiments. The results showed that the half-life of carbendazim (5.0 mg·kg-1and 10.0 mg·kg-1) in sterilized soils was 12.6-13.8 times of those in non-sterilized soils. The half-life of carbendazim was decreased by 32.1%-37.1% when the soils were inoculated with carbendazim-degrading strains. When the soil moisture was increased from 40% to 60% or 80% of water holding capacity, the half life of carbendazim was decreased by 46.2% or 74.0%, respectively. Low level of Cd (5 mg·kg-1) enhanced the degradation of carbendazim in soils with half-life time decreased by 32.1%-52.4%, but high level of Cd (50 mg·kg-1) inhibited the degradation of carbendazim in soils with half-life time increased by 92.6%-103.0%. For the soils inoculated with carbendazim-degrading strains, the half life of carbendazim was decreased by 34.0%-34.4% with the addition of low level of Cd (5.0 mg·kg-1), while the half life time was increased by 74.4%-109.4% with the addition of high level of Cd (50 mg·kg-1). The results demonstrate that indigenous microorganisms is a critical factor that influences carbendazim degradation in soils, and that carbendazim-degrading strains, high soil moisture and low Cd level enhance the degradation of carbendazim.
%K carbendazim
%K degradation
%K carbendazim degrading bacteria
%K soil moisture
%K cadmium<br>多菌灵
%K 降解动态
%K 多菌灵降解菌
%K 土壤含水量
%K Cd
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=3FF3ABA7486768130C3FF830376F43B398E0C97F0FF2DD53&cid=A7CA601309F5FED03C078BCE383971DC&jid=64CD0AA99DD39F69401C615B85F123EF&aid=4A820C74CDA0F61529CA1EB968F9685C&yid=99E9153A83D4CB11&vid=27746BCEEE58E9DC&iid=708DD6B15D2464E8&sid=91C272A55A90CFA7&eid=90F19EF8CC3416AF&journal_id=0250-3301&journal_name=环境科学&referenced_num=0&reference_num=33