Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1006/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
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ISSN | 0140-1963 |
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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