Cropland expansion outweighs the monetary effect of declining natural vegetation on ecosystem services in sub-Saharan Africa

doi:10.1016/j.ecoser.2020.101154

	Cropland expansion outweighs the monetary effect of declining natural vegetation on ecosystem services in sub-Saharan Africa
	Fenta, Ayele Almaw 4,6; Tsunekawa, Atsushi 4; Haregeweyn, Nigussie 7; Tsubo, Mitsuru 4; Yasuda, Hiroshi 4; Shimizu, Katsuyuki 1; Kawai, Takayuki 4; Ebabu, Kindiye 4,8; Berihun, Mulatu Liyew 2,4; Sultan, Dagnenet 2
刊名	ECOSYSTEM SERVICES
	2020-10-01
卷号	45 页码:17
关键词	Dryland Ecosystem service Global coefficient Land cover change Land degradation
ISSN号	2212-0416
DOI	10.1016/j.ecoser.2020.101154
通讯作者	Fenta, Ayele Almaw(ayelealmaw@tottori-u.ac.jp)
英文摘要	Changes in land cover and land degradation alter natural ecosystems, thereby affecting the services these ecosystems provide. However, there have been few attempts to estimate the effects of land cover change and land degradation on ecosystem services at large spatial scales and under the strong influence of human activities. Here, we used the European Space Agency Climate Change Initiative land cover maps (1992-2015) and the value transfer valuation method to estimate the changes in ecosystem services value (ESV) in response to land cover change in sub-Saharan Africa (SSA). Moreover, we estimated the loss of ESV due to land degradation by using the long-term (1992-2015) trend in the annual normalized difference vegetation index as a proxy for longterm biomass productivity decline. Our results revealed that, between 1992 and 2015, cropland increased by about 20 million ha, largely at the expense of forest and shrubland. The total estimated ESV of SSA was about US $9 trillion year(-1), of which 55% was derived from cropland and deciduous forest, with comparable contributions. Land cover change resulted in a net increase in the total ESV by US$125 billion year(-1) (1992-2015), albeit with an ESV loss of US$60 billion year -1 from the conversion of evergreen forest and shrubland. Overall, cropland expansion accounted for about 60% of the increase in the total ESV (US$125 billion year(-1)), thereby outweighing the decrease in ESV due to the decline in natural vegetation. Land degradation hotspots covered about 5% of SSA, resulting in a total ESV loss of about US$56 billion year(-1), of which nearly 65% was due to the degradation of forests and croplands. Changes in ESV varied across sub-regions, climate zones, and countries, depending on the dominant land cover change and the extent of land degradation. Our results provide useful insights for making informed decisions towards sustainable use and management of ecosystems.
资助项目	Science and Technology Research Partnership for Sustainable Development[JPMJSA1601] ; Japan Science and Technology Agency/Japan International Cooperation Agency[JP19K13434] ; Japan Science and Technology Agency/Japan International Cooperation Agency[JP16K01218] ; Japan Society for the Promotion of Science
WOS关键词	NET PRIMARY PRODUCTIVITY ; USE/LAND-COVER DYNAMICS ; LAND-COVER ; SEMIARID HIGHLANDS ; TROPICAL FORESTS ; FOOD SECURITY ; SOURCE REGION ; SOIL-EROSION ; IMPACT ; BIODIVERSITY
WOS研究方向	Environmental Sciences & Ecology
语种	英语
出版者	ELSEVIER
WOS记录号	WOS:000582465200004
资助机构	Science and Technology Research Partnership for Sustainable Development ; Japan Science and Technology Agency/Japan International Cooperation Agency ; Japan Society for the Promotion of Science
内容类型	期刊论文
源URL	[http://ir.igsnrr.ac.cn/handle/311030/156767]
专题	中国科学院地理科学与资源研究所
通讯作者	Fenta, Ayele Almaw
作者单位	1.Tottori Univ, Fac Agr, Minami Ku, 4-101 Koyama Cho, Tottori 6808553, Japan 2.Bahir Dar Univ, Fac Civil & Water Resource Engn, Bahir Dar Inst Technol, POB 26, Bahir Dar, Ethiopia 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Synth Res Ctr,Chinese Ecosyst Res Network, Beijing 100101, Peoples R China 4.Tottori Univ, Arid Land Res Ctr, 1390 Hamasaka, Tottori 6800001, Japan 5.Bahir Dar Univ, Dept Earth Sci, POB 79, Bahir Dar, Ethiopia 6.Mekelle Univ, Dept Land Resources Management & Environm Protect, POB 231, Mekelle, Ethiopia 7.Tottori Univ, Int Platform Dryland Res & Educ, Tottori 6800001, Japan 8.Bahir Dar Univ, Coll Agr & Environm Sci, POB 1289, Bahir Dar, Ethiopia
推荐引用方式 GB/T 7714	Fenta, Ayele Almaw,Tsunekawa, Atsushi,Haregeweyn, Nigussie,et al. Cropland expansion outweighs the monetary effect of declining natural vegetation on ecosystem services in sub-Saharan Africa[J]. ECOSYSTEM SERVICES,2020,45:17.
APA	Fenta, Ayele Almaw.,Tsunekawa, Atsushi.,Haregeweyn, Nigussie.,Tsubo, Mitsuru.,Yasuda, Hiroshi.,...&Sun, Jian.(2020).Cropland expansion outweighs the monetary effect of declining natural vegetation on ecosystem services in sub-Saharan Africa.ECOSYSTEM SERVICES,45,17.
MLA	Fenta, Ayele Almaw,et al."Cropland expansion outweighs the monetary effect of declining natural vegetation on ecosystem services in sub-Saharan Africa".ECOSYSTEM SERVICES 45(2020):17.