中国生态农业学报2011，Vol.19Issue(2)：358-362,5.DOI:10.3724/SP.J.1011.2011.00358
新疆伊犁荒漠草原恢复措施下植物群落生态位特征分析
Characteristics of plant niche under different restoration measures in Ili desert grassland of Xinjiang Uygur Autonomous Region
摘要
Abstract
Serious degradation of spring and autumn sagebrush desert steppes was a bottleneck for developing seasonal animal husbandry in northem Xinjiang. In order to restore the sagebrush desert steppes, grazing was seasonally banned or long-term prohibited and grassland reseeding was adopted. In this study, the characteristics of niche breadth and niche overlap of 16 Ili desert grassland species were analyzed. The selected grasslands were seasonal grazing banned, long-term grazing prohibited, reseeded and grazed freely. The dominant species (Seriphidium transiliense) had the largest niche breadth, expect in reseeded grassland. S.transiliense niche breadths in freely grazed grassland, long-term grazing prohibited grassland, seasonally grazing banned grassland were 1.037, 1.101 and 1.070, respectively. In also the reseeded grassland, Stipa sp. had the largest niche breadth (0.798). While higher Pianka niche overlap occurred in high niche breadth species, the highest niche overlap occurred in low niche breadth species.Furthermore, niche proportion similarity and overlap between S. transiliense and Ceratoides arenarius were high in all four grasslands. This showed an intense interspecies competition for resources between the two species.关键词
荒漠草原/植物群落/生态位/伊犁绢蒿/禁牧/休牧/补播Key words
Desert grassland/ Plant community/ Niche/ Seriphidium transiliense/ Long-term grazing prohibition/ Seasonal grazing banning/ Reseed分类
生物科学引用本文复制引用
张伟,王万林,胡玉昆,尹伟,公延明,房飞,阿德列提·艾列吾塔力甫..新疆伊犁荒漠草原恢复措施下植物群落生态位特征分析[J].中国生态农业学报,2011,19(2):358-362,5.基金项目
全球环境基金(GEF)新疆草地项目和国家重点基础研究发展计划(973计划)项目(2009CB825103)资助 （GEF）
