Arid
DOI10.1016/j.ecolind.2016.05.030
Can ecological land classification increase the utility of vegetation monitoring data?
Williamson, Jeb C.1; Bestelmeyer, Brandon T.1; McClaran, Mitchel P.2; Robinett, Dan3; Briske, David D.4; Wu, X. Ben4; Fernandez-Gimenez, Maria E.5
通讯作者Williamson, Jeb C.
来源期刊ECOLOGICAL INDICATORS
ISSN1470-160X
EISSN1872-7034
出版年2016
卷号69页码:657-666
英文摘要

Vegetation dynamics in rangelands and other ecosystems are known to be mediated by topoedaphic properties. Vegetation monitoring programs, however, often do not consider the impact of soils and other sources of landscape heterogeneity on the temporal patterns observed. Ecological sites (ES) comprise a land classification system based on soil, topographic, and climate variations that can be readily applied by land managers to classify topoedaphic properties at monitoring locations. We used a long-term (>40y) vegetation record from southeastern Arizona, USA to test the utility of an ES classification for refining interpretations of monitoring data in an area of relatively subtle soil differences. We focused on two phenomena important to rangeland management in the southeastern Arizona region: expansion of the native tree velvet mesquite (Prosopis velutina Woot.) and spread of the introduced perennial grass Lehmann lovegrass (Eragrostis lehmanniana Nees). Specifically, we sought to determine if a quantitative, ES-specific analysis of the long-term record would (1) improve detection of changes in plant species having heightened ecological or management importance and (2) further clarify topoedaphic effects on vegetation trajectories. We found that ES class membership was a significant factor explaining spatiotemporal variation in velvet mesquite canopy cover, Lehmann lovegrass basal cover, and Lehmann lovegrass density measurements. In addition, we observed that the potential magnitude of velvet mesquite and Lehmann lovegrass increases varied substantially among ES classes. Our study brings attention to a practical land management tool that might be called upon to increase the effectiveness of vegetation-based indicators of ecosystem change. Published by Elsevier Ltd.


英文关键词Biological invasion Land classification Monitoring Soil texture Time series Vegetation indicator
类型Article
语种英语
国家USA
收录类别SCI-E
WOS记录号WOS:000388785100064
WOS关键词TRANSITION MODELS ; DESERT GRASSLAND ; SOIL TEXTURE ; DYNAMICS ; ENCROACHMENT ; MANAGEMENT ; RANGELANDS ; SITES ; AUSTRALIA ; ECOSYSTEM
WOS类目Biodiversity Conservation ; Environmental Sciences
WOS研究方向Biodiversity & Conservation ; Environmental Sciences & Ecology
来源机构University of Arizona ; New Mexico State University ; Colorado State University
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/192418
作者单位1.New Mexico State Univ, USDA ARS Jornada Expt Range, MSC 3JER,Box 30003, Las Cruces, NM 88003 USA;
2.Univ Arizona, Sch Nat Resources & Environm, Tucson, AZ USA;
3.Robinett Rangeland Resources LLC, Elgin, AZ USA;
4.Texas A&M Univ, Dept Ecosyst Sci & Management, College Stn, TX USA;
5.Colorado State Univ, Dept Forest & Rangeland Stewardship, Ft Collins, CO 80523 USA
推荐引用方式
GB/T 7714
Williamson, Jeb C.,Bestelmeyer, Brandon T.,McClaran, Mitchel P.,et al. Can ecological land classification increase the utility of vegetation monitoring data?[J]. University of Arizona, New Mexico State University, Colorado State University,2016,69:657-666.
APA Williamson, Jeb C..,Bestelmeyer, Brandon T..,McClaran, Mitchel P..,Robinett, Dan.,Briske, David D..,...&Fernandez-Gimenez, Maria E..(2016).Can ecological land classification increase the utility of vegetation monitoring data?.ECOLOGICAL INDICATORS,69,657-666.
MLA Williamson, Jeb C.,et al."Can ecological land classification increase the utility of vegetation monitoring data?".ECOLOGICAL INDICATORS 69(2016):657-666.
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