气候变化领域集成服务门户(CCPortal): Could arid and semi-arid abandoned lands prove ecologically or economically valuable if they afford greater soil organic carbon storage than afforested lands in China's Loess Plateau?

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DOI	10.1016/j.landusepol.2020.105027
	Could arid and semi-arid abandoned lands prove ecologically or economically valuable if they afford greater soil organic carbon storage than afforested lands in China's Loess Plateau?
	Cao, Jianjun; Wei, Chen; Adamowski, Jan F.; Zhou, Junju; Liu, Chunfang; Zhu, Guofeng; Dong, Xiaogang; Zhang, Xiaofang; Zhao, Huijun; Feng, Qi
发表日期	2020
ISSN	0264-8377
EISSN	1873-5754
卷号	99
英文摘要	As in the rest of the world, China assumed afforestation was an effective means of helping to mitigate the negative impacts of global warming, soil erosion and soil degradation, and returned large areas of farmland to woodland. At the same time, due to industrialization and urbanization, large tracts of arable land were abandoned, especially on the Loess Plateau. To explore which land use type has greater potential to absorb carbon dioxide from the atmosphere and thus provide suggestions for land use policy in this region, a comparison of soil organic carbon storage under abandoned and afforested lands was undertaken in the northwest part of the Loess Plateau (Huining County, Gansu province, China). The soil water content, pH, soil bulk density, soil organic carbon content and overall organic carbon storage of soils (0-1.0 m depth) were measured in each of 21 plots (10 m x 10 m) on the abandoned (apricot trees) lands, and 21 similar plots on the afforested lands. Soils under the two land use types showed no significant differences in gravimetric water content or pH up to 1.0 m in depth. The soil bulk density, organic carbon content and organic carbon storage under the abandoned lands (1.18 Mg m(-3), 7.07 g kg(-1), and 80.58 Mg ha(-1), respectively) were all significantly higher than under the afforested lands (1.13 Mg m(-3), 6.62 g kg(-1), and 71.8 Mg ha(-1), respectively). Although benefits such as strong soil carbon fixation and lower water consumption were greater in the abandoned lands, this does not imply that afforested lands should be converted into abandoned lands, as they can provide wind barriers, reduce soil erosion, and maintain high biodiversity. However, given the integration of urban and rural development policies, as well as worsening food security issues attributable to the loss of arable lands to urbanization, some focus should be placed on the use of abandoned lands through consolidation.
英文关键词	Arid and semi-arid areas; Soil erosion; Afforestation policy; Land abandonment; Soil organic carbon; Land use type
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Environmental Studies
WOS关键词	3 FOREST PLANTATIONS ; FARMLAND ABANDONMENT ; INORGANIC CARBON ; ARABLE LAND ; RESTORATION ; SEQUESTRATION ; POLICY ; MANAGEMENT ; DYNAMICS ; DEPTH
WOS记录号	WOS:000594485100011
来源期刊	LAND USE POLICY
来源机构	中国科学院西北生态环境资源研究院
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/239336
作者单位	[Cao, Jianjun; Wei, Chen; Zhou, Junju; Liu, Chunfang; Zhu, Guofeng; Dong, Xiaogang; Zhang, Xiaofang; Zhao, Huijun] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Adamowski, Jan F.; Zhou, Junju; Liu, Chunfang; Zhu, Guofeng; Dong, Xiaogang; Zhang, Xiaofang; Zhao, Huijun] McGill Univ, Fac Agr & Environm Sci, Dept Bioresource Engn, Montreal, PQ H9X 3V9, Canada; [Zhou, Junju; Liu, Chunfang; Zhu, Guofeng; Dong, Xiaogang; Zhang, Xiaofang; Zhao, Huijun; Feng, Qi] Chinese Acad Sci, Cold & Arid Reg Environm Engn Res Inst, Key Lab Ecohydrol Inland River Basin, Alashan Desert Ecohydrol Expt Res Stn, Lanzhou 730000, Peoples R China
推荐引用方式 GB/T 7714	Cao, Jianjun,Wei, Chen,Adamowski, Jan F.,et al. Could arid and semi-arid abandoned lands prove ecologically or economically valuable if they afford greater soil organic carbon storage than afforested lands in China's Loess Plateau?[J]. 中国科学院西北生态环境资源研究院,2020,99.
APA	Cao, Jianjun.,Wei, Chen.,Adamowski, Jan F..,Zhou, Junju.,Liu, Chunfang.,...&Feng, Qi.(2020).Could arid and semi-arid abandoned lands prove ecologically or economically valuable if they afford greater soil organic carbon storage than afforested lands in China's Loess Plateau?.LAND USE POLICY,99.
MLA	Cao, Jianjun,et al."Could arid and semi-arid abandoned lands prove ecologically or economically valuable if they afford greater soil organic carbon storage than afforested lands in China's Loess Plateau?".LAND USE POLICY 99(2020).