复合微生物肥料对科尔沁羊草割草场植物群落多样性和生产力的影响  

Effects of Compound Bio-fertilizers on Plant Community Diversity and Productivity of Leymus chinensis Mowing Pasture in Horqin

作　　者：温超[1,2] 单玉梅 李良臣[3] 高丽娟 杨晓松[3] 斯日古楞[3] 张军[3] 刘永志[4] 

机构地区：[1]中国科学院内蒙古草业研究中心,内蒙古呼和浩特010031 [2]内蒙古自治区农牧业科学院,内蒙古呼和浩特010031 [3]内蒙古通辽市畜牧兽医科学研究所,内蒙古通辽028000 [4]内蒙古自治区农牧业厅,内蒙古呼和浩特010010

出　　处：《草地学报》2017年第5期952-957,共6页Acta Agrestia Sinica

基　　金：公益性行业(农业)科研专项"半干旱牧区天然打草场培育及利用技术研究与示范"项目(201303060)资助

摘　　要：为了解复合微生物肥料在天然草场改良中的效果,本研究设置对照(CK)、腐殖酸(F)、糖蜜发酵(T)、海藻酸(H)和3种复合微生物肥料混合施入(A)5种处理,研究其对科尔沁羊草(Leymus chinensis)割草场草地生产力、植物群落特征和物种多样性的影响。结果表明:复合微生物肥料对天然草地的改良有一定促进作用。T处理地上生物量较CK显著增加了27.18%(P<0.05);复合微生物肥料增加了群落高度、盖度和密度,T处理显著增加了群落高度和盖度(P<0.05),各处理间群落密度无显著差异;T、H和A处理增加了群落中羊草的重要值,其中T处理显著增加了20.46%(P<0.05);群落Margalef丰富度指数、Shannon-Wiener多样性指数、Pielou均匀度指数和Simpson优势度指数都没有显著变化。综上所述,本研究选取的几种复合微生物肥料以糖蜜发酵(T)改良效果最佳。In order to explore the effect of compound bio-fertilizer on native pasture improvement,five compound bio-fertilizers were fertilized which including control（CK）,Humic acid fertilizer（F）,Molasses fermentation fertilizer（T）,Alginic acid fertilizer（H） and both three compound bio-fertilizer fertilizers（A）,to study the effects on productivty,community characteristics and species diversity of Leymus chinensis mowing pasture in Horqin. The results showed that the community above-biomass of T was 27. 18 % which was higher than CK（P 0. 05）. The compound bio-fertilizer increased the community height,coverage and density. Treatment T increased the community height and coverage significantly（P 0. 05）,but the community density had no significant difference among the treatments. Treatment T,H and A increased the important value of Leymus chinensis,up to 20. 46 % increase in treatment T（P 0. 05）. The community Margalef diversity index,Shannon-Wiener diversity index,Pielou evenness index and Simpson dominance index had no significant changes. In conclusion,the compound bio-fertilizer improved the native pasture condition,and Molasses fermentation fertilizer（T） showed the best improvement effect in this study.

关 键 词：复合微生物肥料 割草场 生产力 群落多样性 

分 类 号：Q145.23[生物学—生态学]