干旱区生态环境知识资源中心(Arid): Desertification-Scientific Versus Political Realities

Arid

DOI	10.3390/land9050156
	Desertification-Scientific Versus Political Realities
	Sterk, Geert 1; Stoorvogel, Jetse J.2
通讯作者	Sterk, Geert
来源期刊	LAND
EISSN	2073-445X
出版年	2020
卷号	9 期号:5
英文摘要	Desertification is defined as land degradation occurring in the global drylands. It is one of the global problems targeted under the Sustainable Development Goals (SDG 15). The aim of this article is to review the history of desertification and to evaluate the scientific evidence for desertification spread and severity. First quantitative estimates of the global extent and severity of desertification were dramatic and resulted in the establishment of the UN Convention to Combat Desertification (UNCCD) in 1994. UNCCD's task is to mitigate the negative impacts of desertification in drylands. Since the late 1990s, science has become increasingly critical towards the role of desertification in sustainable land use and food production. Many of the dramatic global assessments of desertification in the 1970s and 1980s were heavily criticized by scientists working in drylands. The used methodologies and the lack of ground-based evidence gave rise to critical reflections on desertification. Some even called desertification a myth. Later desertification assessments relied on remote sensing imagery and mapped vegetation changes in drylands. No examples of large areas completely degraded were found in the scientific literature. In science, desertification is now perceived as a local feature that certainly exists but is not as devastating as was earlier believed. However, the policy arena continues to stress the severity of the problem. Claims that millions of hectares of once productive land are annually lost due to desertification are regularly made. This highlights the disconnection between science and policy, and there is an urgent need for better dialogue in order to achieve SDG 15.
英文关键词	desertification land degradation global assessment drylands Sahel
类型	Review
语种	英语
国家	Netherlands
开放获取类型	Green Published, gold
收录类别	SSCI
WOS记录号	WOS:000542144200005
WOS关键词	WEST-AFRICAN SAHEL ; LAND DEGRADATION ; GLOBAL ASSESSMENT ; SOIL-EROSION ; WIND EROSION ; VEGETATION ; DYNAMICS ; TRENDS ; EFFICIENCIES ; TRANSPORT
WOS类目	Environmental Studies
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/2XILL650/319684
作者单位	1.Univ Utrecht, Fac Geosci, Dept Phys Geog, NL-3584 CB Utrecht, Netherlands; 2.Wageningen Univ, Soil Geog & Landscape Grp, NL-6708 PB Wageningen, Netherlands
推荐引用方式 GB/T 7714	Sterk, Geert,Stoorvogel, Jetse J.. Desertification-Scientific Versus Political Realities[J],2020,9(5).
APA	Sterk, Geert,&Stoorvogel, Jetse J..(2020).Desertification-Scientific Versus Political Realities.LAND,9(5).
MLA	Sterk, Geert,et al."Desertification-Scientific Versus Political Realities".LAND 9.5(2020).