%0 Journal Article
%T Changes and Driving Forces of Farmland Organic Matter in Guangdong Province, China<br>广东耕地土壤有机质的变化趋势及其驱动力分析
%A ZENG Zhao-bing
%A TANG Jian-dong
%A LIU Yi-feng
%A ZHANG Man-hong
%A LIN Bi-shan
%A <br>曾招兵
%A 汤建东
%A 刘一峰
%A 张满红
%A 林碧姗
%J 土壤
%D 2013
%I 
%X The change of farmland organic matter was analyzed by using long-term monitoring data in Guangdong Province, South China. The results showed that farmland organic matter content in Guangdong Province did not change significantly from 1984 to 2010, but showed a decrease trend in last 5 years, especially for the farmland organic matter in the Pearl River Delta. There were significant differences in organic matter content between different regions: east Guangdong was 22% less than north Guangdong. Soil types affected the organic matter content. Organic matter content in farmland originated from Latosolic red soils and Purplish soils were lower, which were 13.0 g/kg and 11.2 g/kg respectively. The mean of organic matter content of paddy soil which was with the largest area decreased 1.5 g/kg in last 5 years. The decrease of farmland organic matter in Guangdong Province was mainly due to the loss of high-quality farmland and the change of planting model.
%K Guangdong
%K Farmland
%K Organic matter
%K Change tendency
%K Driving force<br>广东
%K 耕地
%K 有机质
%K 变化趋势
%K 驱动力
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=56F69E970C6E5190CDB409D28DD0E3C6&aid=264944D7EF6D4B732414124FC3E40CEB&yid=FF7AA908D58E97FA&vid=94E7F66E6C42FA23&iid=CA4FD0336C81A37A&sid=656F8C8401D91023&eid=869807E2D7BED9EC&journal_id=0253-9829&journal_name=土壤&referenced_num=0&reference_num=0