复合微生物肥料对羊草草原植物群落特征的影响  

Effect of Compound Bio-fertilizer on Plant Community Characteristics in Leymus chinensis Steppe

作　　者：万修福 权国玲 何峰[1] 仝宗永[1] 李向林[1] 万里强[1] 李跃[1] Wan Xiufu Quan Guoling He Feng Tong Zongyong Li Xianglin Wan Liqiang Li Yue(Institute of Animal Sciences, Chinese Academy of Agricultural Sciences, Beijing 100193 College of Pastoral Agriculture Science and Technology, Lanzhou University, Lanzhou 730020)

机构地区：[1]中国农业科学院北京畜牧兽医研究所,北京100193 [2]兰州大学草地农业科技学院,兰州730020

出　　处：《中国农学通报》2017年第6期110-115,共6页Chinese Agricultural Science Bulletin

基　　金：公益性行业(农业)科研专项经费项目"半干旱牧区天然打草场培育及利用技术研究与示范"(201303060);国家牧草产业技术体系岗位科学家项目(CARS-35)

摘　　要：为了探究复合微生物肥料在草地改良中的作用,以退化羊草草原为研究对象,设定CK(对照)、F(腐殖酸肥)、T(糖蜜发酵肥)、H(海藻酸肥)、A(腐殖酸+糖蜜发酵+海藻酸肥)5种复合微生物肥料施肥处理,分析不同处理下群落物种和群落多样性的变化。试验结果表明:施用复合微生物肥料对于羊草地上生物量均有所提高,处理H较对照增产效果最好,且存在显著性差异(P<0.05),同时,处理H也显著提高羊草地下生物量;处理A和H显著降低了群落优势度,提高了群落主要物种的重要值,但不显著;Shannon-Wiener多样性指数和Simpson优势度指数、E.Pielou均匀度指数都显著正相关。短期内,施用复合微生物肥料,群落的建群种和优势种没有改变,海藻酸复合微生物肥料对羊草的地上生物量增产效果最好,对地下生物量促进作用最佳。In order to explore the effect of compound bio-fertilizer on grassland improvement, an experiment offive compound bio- fertilizers, which were control（CK）, humic acid fertilizer（F）, molasses fermentationfertilizer（T）, alginic acid fertilizer（H） and both three compound bio-fertilizer fertilizers（A）, was conducted onLymus chinensis degenerated grassland to analyze the change of community species and diversity. The resultsshowed that the Lymus chinensis aboveground biomass increased under the treatment of compound bio-fertilizer, and treatment H had the best increasing effect compared with CK（P〈0.05）, while treatment H alsosignificantly increased underground biomass; treatment A and H significantly decreased communitydominance, while increased the importance value of main species, but it was not significant. Shannon Wienerdiversity index had a significantly positive correlation with Simpson dominance index and E. Pielou evennessindex. In the short term, the application of compound bio-fertilizer did not change the status of constructivespecies and dominant species, and alginic acid compound bio-fertilizer was the optimum fertilizer to increase Lymus chinensis above-ground biomass yield and promote underground biomass.

关 键 词：肥料 羊草草原 地上生物量 群落特征 

分 类 号：S-3[农业科学]