摘要
通过对沙地围栏内、外植被的生物量、盖度、密度、株高等相关指标测定,探讨围栏设置对沙地植被功能群和多样性的影响,为沙地放牧管理和合理利用提供参考.结果表明:通过围栏设置能够显著提高生物量(P<0.05),且围栏内出现了凋落物;围栏外植物种类为17种,围栏内为10种,且围栏外多样性指数和丰富度指数均显著高于围栏内(P<0.05).由此可见,在草地围封过程中适当放牧应该更有利于草地的进展演替,也将有利于退化草地的恢复.
To study the effect of enclosure on plant functional groups, species diversity and species composition by testing biomass, coverage, density and height and so on. The result showed:The biomass was significantly increase through fencing(P<0.05), and there was litter in enclosure;There are 17 species in enclosure and 10 species outside enclosure, and the diversity index and richness index of outside fence were significantly higher than enclosure (P<0.05). Thus, in the proper grazing grassland fencing in the process should be more conducive to the succession of grassland, there will also be conducive to the restoration of degraded grassland.
出处
《内蒙古民族大学学报（自然科学版）》
2015年第3期240-244,共5页
Journal of Inner Mongolia Minzu University：Natural Sciences
基金
内蒙古自然科学基金(2013MS0525
2012MS0520)
内蒙古自治区重大科技项目(20101405)
关键词
放牧
功能群
围封
多样性
生物量
Grazing
Functional Groups
Enclosure
Diversity
Biomass
