气候变化领域集成服务门户(CCPortal): Carbon for soils, not soils for carbon

CCPortal

DOI	10.1111/gcb.16570
	Carbon for soils, not soils for carbon
	Moinet, Gabriel Y. K.; Hijbeek, Renske; van Vuuren, Detlef P.; Giller, Ken E.
发表日期	2023
ISSN	1354-1013
EISSN	1365-2486
起始页码	2384
结束页码	2398
卷号	29 期号:9
英文摘要	The role of soil organic carbon (SOC) sequestration as a 'win-win' solution to both climate change and food insecurity receives an increasing promotion. The opportunity may be too good to be missed! Yet the tremendous complexity of the two issues at stake calls for a detailed and nuanced examination of any potential solution, no matter how appealing. Here, we critically re-examine the benefits of global SOC sequestration strategies on both climate change mitigation and food production. While estimated contributions of SOC sequestration to climate change vary, almost none take SOC saturation into account. Here, we show that including saturation in estimations decreases any potential contribution of SOC sequestration to climate change mitigation by 53%-81% towards 2100. In addition, reviewing more than 21 meta-analyses, we found that observed yield effects of increasing SOC are inconsistent, ranging from negative to neutral to positive. We find that the promise of a win-win outcome is confirmed only when specific land management practices are applied under specific conditions. Therefore, we argue that the existing knowledge base does not justify the current trend to set global agendas focusing first and foremost on SOC sequestration. Away from climate-smart soils, we need a shift towards soil-smart agriculture, adaptative and adapted to each local context, and where multiple soil functions are quantified concurrently. Only such comprehensive assessments will allow synergies for land sustainability to be maximised and agronomic requirements for food security to be fulfilled. This implies moving away from global targets for SOC in agricultural soils. SOC sequestration may occur along this pathway and contribute to climate change mitigation and should be regarded as a co-benefit.
英文关键词	climate change mitigation; food security; soil carbon sequestration; soil multifunctionality; trade-off
语种	英语
WOS研究方向	Biodiversity Conservation ; Ecology ; Environmental Sciences
WOS类目	Science Citation Index Expanded (SCI-EXPANDED)
WOS记录号	WOS:000921310900001
来源期刊	GLOBAL CHANGE BIOLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/280378
作者单位	Wageningen University & Research; Wageningen University & Research; Utrecht University
推荐引用方式 GB/T 7714	Moinet, Gabriel Y. K.,Hijbeek, Renske,van Vuuren, Detlef P.,et al. Carbon for soils, not soils for carbon[J],2023,29(9).
APA	Moinet, Gabriel Y. K.,Hijbeek, Renske,van Vuuren, Detlef P.,&Giller, Ken E..(2023).Carbon for soils, not soils for carbon.GLOBAL CHANGE BIOLOGY,29(9).
MLA	Moinet, Gabriel Y. K.,et al."Carbon for soils, not soils for carbon".GLOBAL CHANGE BIOLOGY 29.9(2023).