Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1006/jare.2000.0645 |
Indicators of Great Basin rangeland health | |
de Soyza, AG; Van Zee, JW; Whitford, WG; Neale, A; Tallent-Hallsel, N; Herrick, JE; Havstad, KM | |
通讯作者 | de Soyza, AG |
来源期刊 | JOURNAL OF ARID ENVIRONMENTS |
ISSN | 0140-1963 |
出版年 | 2000 |
卷号 | 45期号:4页码:289-304 |
英文摘要 | Early-warning indicators of rangeland health can be used to estimate the functional integrity of a site and may allow sustainable management of desert rangelands. The utility of several vegetation canopy-based indicators of range land health at 32 Great Basin rangeland locations was investigated. The indicators were originally developed in rangelands of the Chihuahuan Desert. Soil resources are lost through wind and water-driven erosion mainly from areas unprotected by plant canopies (i.e. bare soil). Study sites in Idaho had the smallest bare patches, followed by sites in Oregon. The more arid Great Basin Sagebrush Zone sites in Utah had the largest bare patches. Several vegetational indicators including percent cover by vegetation, percent cover by life-form, percent cover by sagebrush, and percent cover by resilient species were negatively related to mean bare patch size and are potential indicators of Great Basin rangeland condition. Plant community composition and the range of bare patch sizes were different at sites in the three locations in Idaho, Oregon and Utah. Therefore, expected indicator values are location specific and should not be extrapolated to other locations. The condition of study sites were often ranked differently by different indicators. Therefore, the condition of rangeland sites should be evaluated using several indicators. (C) 2000 Academic Press. |
英文关键词 | bare patch size vegetation cover forb grass shrub resilience resistance relative preference index sagebrush |
类型 | Article |
语种 | 英语 |
国家 | USA |
收录类别 | SCI-E |
WOS记录号 | WOS:000089595300001 |
WOS关键词 | DESERTIFICATION |
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/2XILL650/139262 |
作者单位 | (1)USDA ARS, Jornada Expt Range, MSC 3JER, NMSU, Las Cruces, NM 88003 USA;(2)US EPA, Off Res & Dev, Natl Exposure Res Lab, Div Environm Sci, Las Vegas, NV 89193 USA |
推荐引用方式 GB/T 7714 | de Soyza, AG,Van Zee, JW,Whitford, WG,et al. Indicators of Great Basin rangeland health[J],2000,45(4):289-304. |
APA | de Soyza, AG.,Van Zee, JW.,Whitford, WG.,Neale, A.,Tallent-Hallsel, N.,...&Havstad, KM.(2000).Indicators of Great Basin rangeland health.JOURNAL OF ARID ENVIRONMENTS,45(4),289-304. |
MLA | de Soyza, AG,et al."Indicators of Great Basin rangeland health".JOURNAL OF ARID ENVIRONMENTS 45.4(2000):289-304. |
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