]*>","")" />
• Article • Previous Articles Next Articles
CUI Guo-ying;LIU Chang-e;AN Sha-zhou
Received:
Revised:
Online:
Published:
崔国盈;刘长娥;安沙舟
摘要: 通过对永久围栏不放牧草地、围栏放牧草地、不围栏放牧草地等进行草地植物群落和环境条件的综合调查;利用放牧空间梯度的方法,在一定范围内,随机扔取样圆,统计样地的植物种类;以Dyksterhuirs法评定草地基况,分析天山北坡山地草甸草地资源及退化程度.结果表明:(1)永久围栏不放牧草地植被组成接近原生植被,土质松软、土壤持水量好、地表平坦,基本上无鼠洞;(2)围栏放牧草地与不围栏离棚圈100和50 m放牧草地,优良牧草比例下降,增加植物占有很大比例,土壤硬度增加,保墒性能下降,地表有少量鼠洞;(3)栏外路边人类活动频繁区草地,增加植物增多,草地出现侵入者植物,土壤质地坚硬,地表有大量鼠洞,出现裸露与土丘.由此说明了天山北坡山地草甸出现了明显的退化特征.
CUI Guo-ying;LIU Chang-e;AN Sha-zhou. Analysis on Resources and Degradation of Marshy Grassland and Meadow in the North Slope of Tianshan Mountains[J]. .
崔国盈;刘长娥;安沙舟. 新疆天山北坡山地草甸草地资源退化生态分析[J]. .
Recommend
Add to citation manager EndNote|Ris|BibTeX
URL: http://www.xjnykx.com/EN/
http://www.xjnykx.com/EN/Y2008/V45/I2/347