%0 Journal Article
%T Impact of mowing on plant regrowth under different resource conditions<br>不同资源条件下刈割对植物再生能力的影响
%A PAN Sheng-Wang
%A WANG Hai-Yang
%A DU Guo-Zhen
%A LEI Shu-Qing
%A WEI Shi-Qiang
%A <br>潘声旺
%A 王海洋
%A 杜国祯
%A 雷抒情
%A 魏世强
%J 中国生态农业学报
%D 2009
%I 
%X 10 common species of subalpine meadow communities in Gannan Province were selected as experimental materials to analyze the impact of grazing on plants at different growth stages under different field resource conditions of fertilization through simulated mowing experiment. The results show positive correlation between plant palatability and compensation ability. Elymus nutans,Avena sativa, Astragalus polycladus and Kobresia humilis exhibit a relatively lower biomass compensation capacity in high resource conditions than in low resource conditions. Medicago rythenica, Polygonum viviparvum, Festuca sinensis, Swertis bimaculata, Taraxacum tibetanum and Ajania tenuifolia exhibit the reverse response. F. sinensi, A. tenuifolia and P. viviparvum exhibit a relatively high reproductive compensation ability under high resource conditions while the reverse is true for the other seven plant species. The comprehensive compensation index analysis presents the biomass compensation ability order of the 10 plant species under fertilized/non-fertilized conditions is the same as that for biomass standing. This indicates that the comprehensive compensation index adequately reflects plant recovery potential. It then implies that evolutionary strategy is the most dominant factor affecting plant recovery, whereas comprehensive compensation index is a useful tool for predicting the effect of grazing on plant community dynamics.
%K Subalpine meadow
%K Grazing plant
%K Mowing
%K Compensation ability
%K Resource condition
%K Evolutionary strategy
%K Comprehensive compensation index<br>高寒草甸
%K 牧草植物
%K 刈割
%K 补偿能力
%K 资源条件
%K 生存对策
%K 综合补偿指数
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=03F54A49DE00578AA0E5DDF5BC021AA7&cid=1A8B5357F0EF07B8&jid=AB3ABF502E2E1FF39F0E3B80164C9031&aid=1B020190A1D67B7FFB92787A5E0C6DBF&yid=DE12191FBD62783C&vid=BCA2697F357F2001&iid=38B194292C032A66&sid=08076B8B3CC96095&eid=D98387EFB283C5E0&journal_id=1671-3990&journal_name=中国生态农业学报&referenced_num=0&reference_num=22