应用生态学报2012，Vol.23Issue(10)：2648-2654,7.
刈割对克氏针茅草原群落优势与亚优势植物的影响
Effects of cutting on the dominant and subdominant plant species in a Stipa krylovii steppe of Inner Mongolia
摘要
Abstract
Based on the long-term cutting experiment, this paper analyzed the responses of the aboveground biomass of five dominant and subdominant plant species and the community stability in a Stipa krylovii steppe of Inner Mongolia to various cutting height. Cutting with a stubble height of >10 cm had slight effects on the aboveground biomass of the five species. Cutting with a stubble height of 10 cm benefited the growth of Artemisia frigida but made against the growth of Stipa krylovii. Cleistogenes squarrosa at the stubble height of 2 cm performed best, and Carex korshinskyi at the stubble height of 5 cm contributed most to the community, with the biomass positively correlated with the cutting years. Potentilla acaulis growth was detrimentally affected at the stubble heights of 2 and 15 cm. Overall, perennial species with higher plant height and stronger competitive ability were more tolerant to disturbances, and a minimum cutting height of 10 cm should be applied to maintain a high stability of the steppe ecosystem.关键词
留茬高度/地上生物量/群落稳定性/克氏针茅草原Key words
stubble height/ aboveground biomass/ community stability/ Stipa krylovii steppe分类
生物科学引用本文复制引用
李鑫,石凤翎,高艳,赵明旭,李凌浩..刈割对克氏针茅草原群落优势与亚优势植物的影响[J].应用生态学报,2012,23(10):2648-2654,7.基金项目
国家自然科学基金重点项目(26212A1001)资助. （26212A1001）
