干旱区生态环境知识资源中心(Arid): Degraded or Just Dusty? Examining Ecological Change in Arid Lands

Arid

DOI	10.1093/biosci/biz054
	Degraded or Just Dusty? Examining Ecological Change in Arid Lands
	Silcock, Jennifer L.1,2; Fensham, Rod J.1,3
通讯作者	Silcock, Jennifer L.
来源期刊	BIOSCIENCE
ISSN	0006-3568
EISSN	1525-3244
出版年	2019
卷号	69 期号:7 页码:508-522
英文摘要	The ecological history of rangelands is often presented as a tale of devastation, where fragile drylands are irreversibly degraded through inappropriate land use. However, there is confusion about how to recognize and measure degradation, especially in low-productivity environments characterized by extreme natural variability and where abrupt and comprehensive management upheavals preclude benchmarks. These issues have important consequences for rangeland management programs, which are typically founded on presumptions of substantial and ongoing degradation from former natural states. We explore complementary approaches to critically assess degradation: the historical record, long-term grazing exclosures, surveys for potentially rare and sensitive plant species, and assessment of water-remote areas in relation to rare plant occurrence. Employing these approaches in inland Australia, we show that prevailing paradigms have become entrenched despite being inconsistent with empirical evidence. Our methodology can be applied to drylands with abrupt changes in management and contentious ecological narratives.
英文关键词	desertification grazing rangelands threatened species vegetation change
类型	Article
语种	英语
国家	Australia
收录类别	SCI-E ; SSCI
WOS记录号	WOS:000482823300006
WOS关键词	GRASS CENCHRUS-CILIARIS ; PLANT-SPECIES RICHNESS ; EASTERN AUSTRALIA ; VEGETATION CHANGE ; ENVIRONMENTAL HISTORY ; SHRUB ENCROACHMENT ; GLOBAL ASSESSMENT ; PERENNIAL GRASS ; MULGA LANDS ; DESERTIFICATION
WOS类目	Biology
WOS研究方向	Life Sciences & Biomedicine - Other Topics
来源机构	Commonwealth Scientific and Industrial Research Organisation
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/214664
作者单位	1.Univ Queensland, Threatened Species Recovery Hub, Natl Environm Sci Program, Ctr Biodivers & Conservat Sci, St Lucia, Qld, Australia; 2.CSIRO Ecosyst Sci, Sustainable Agr Flagship, Dutton Pk, Qld, Australia; 3.Queensland Herbarium, Dept Environm & Sci, Brisbane Bot Gardens, Toowong, Qld, Australia
推荐引用方式 GB/T 7714	Silcock, Jennifer L.,Fensham, Rod J.. Degraded or Just Dusty? Examining Ecological Change in Arid Lands[J]. Commonwealth Scientific and Industrial Research Organisation,2019,69(7):508-522.
APA	Silcock, Jennifer L.,&Fensham, Rod J..(2019).Degraded or Just Dusty? Examining Ecological Change in Arid Lands.BIOSCIENCE,69(7),508-522.
MLA	Silcock, Jennifer L.,et al."Degraded or Just Dusty? Examining Ecological Change in Arid Lands".BIOSCIENCE 69.7(2019):508-522.