%0 Journal Article
%T Comparison of impacts of invasive weed, Ambrosia artemisiifolia, and native weed, Digitaria chinensis, on soil enzyme activity and fertility<br>入侵植物豚草与本地植物马唐对土壤肥力与酶活性影响的比较
%A LI Hui-N
%A LIU Wan-Xue
%A WAN Fang-Hao
%A CAO Yuan-Yin
%A <br>李会娜
%A 刘万学
%A 万方浩
%A 曹远银
%J 中国生态农业学报
%D 2009
%I 
%X The soil enzyme activity and soil fertility in the invasive ragweed (Ambrosia artemisiifolia) and native weed (Digitaria chinensis) growing-plots were analyzed and compared by the same experimental garden methods. The results show that compared to non-vegetation and native-weed, the invasive ragweed significantly increases soil nutrient availability, especially, available K content in the invasive ragweed plots is 3.6 and 1.3 times of those in the non-vegetation and native weed plots, respectively. Compared to non-vegetation and native weed plots, the invasive ragweed plot has significantly higher activity of soil enzymes. In a conclusion, the invasive ragweed (A. artemisiifolia), has a more strong capacity to improve soil available fertility and activity of soil enzyme than the native weed (D. chinensis), which benefits its competition with native species.
%K Biological invasion
%K Alien invasive plant
%K Native plant
%K Ambrosia artemisiifolia
%K Digitaria chinensis
%K Soil fertility
%K Activity of soil enzyme<br>生物入侵
%K 外来植物
%K 本土植物
%K 豚草
%K 马唐
%K 土壤肥力
%K 土壤酶活性
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=D8C29A9BCDE7B326484FA61918F249F3&yid=DE12191FBD62783C&vid=BCA2697F357F2001&iid=94C357A881DFC066&sid=BCCCE1B88B87184D&eid=138D3449C4A7D4E9&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=3&reference_num=21