Arid
DOI10.1006/jare.1999.0577
Processes of desertification by goats overgrazing in the Tamaulipan thornscrub (matorral) in north-eastern Mexico
Manzano, MG; Navar, J
通讯作者Navar, J
来源期刊JOURNAL OF ARID ENVIRONMENTS
ISSN0140-1963
出版年2000
卷号44期号:1页码:1-17
英文摘要

During the period of October 1995 to October 1996 a single overgrazing episode was monitored to determine the effects of overgrazing by goats on leaf cover in five vertical strata. Soil bulk density, infiltration rates, organic matter content, and the concentration of soil macronutrients within the Tamaulipan thornscrub (matorral) of north-eastern Mexico were assessed. Variance, covariance, and principal component analyses of the data suggest that leaf cover and soil bulk density were affected by overgrazing. There were no statistically significant differences in infiltration rates, organic matter content, or macronutrients. This may be the result of the large spatial variability associated with these parameters or the short time period in which these parameters were monitored. Changes in plant species composition, vegetation cover, and soil compaction were identified as early responses to overgrazing within this ecosystem. The importance of identifying early indicators of overgrazing and the need for future research are discussed. (C) 2000 Academic Press.


英文关键词overgrazing Tamaulipan thornscrub desertification leaf cover soil infiltration soil bulk density Vertisol
类型Article
语种英语
国家Mexico ; Canada
收录类别SCI-E
WOS记录号WOS:000085401900001
WOS关键词GRAZING INTENSITY ; INDICATORS ; VEGETATION ; SYSTEMS ; PLAINS
WOS类目Ecology ; Environmental Sciences
WOS研究方向Environmental Sciences & Ecology
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/139228
作者单位(1)UANL, Fac Ciencias Forestales, Linares 67700, Nuevo Leon, Mexico;(2)Univ Toronto, Fac Forestry, Toronto, ON, Canada
推荐引用方式
GB/T 7714
Manzano, MG,Navar, J. Processes of desertification by goats overgrazing in the Tamaulipan thornscrub (matorral) in north-eastern Mexico[J],2000,44(1):1-17.
APA Manzano, MG,&Navar, J.(2000).Processes of desertification by goats overgrazing in the Tamaulipan thornscrub (matorral) in north-eastern Mexico.JOURNAL OF ARID ENVIRONMENTS,44(1),1-17.
MLA Manzano, MG,et al."Processes of desertification by goats overgrazing in the Tamaulipan thornscrub (matorral) in north-eastern Mexico".JOURNAL OF ARID ENVIRONMENTS 44.1(2000):1-17.
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