气候变化领域集成服务门户(CCPortal): Which slope aspect and gradient provides the best afforestation-driven soil carbon sequestration on the China's Loess Plateau?

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DOI	10.1016/j.ecoleng.2020.105782
	Which slope aspect and gradient provides the best afforestation-driven soil carbon sequestration on the China's Loess Plateau?
	Zhang, Xiaofang; Adamowski, Jan F.; Liu, Chunfang; Zhou, Junju; Zhu, Guofeng; Dong, Xiaogang; Cao, Jianjun; Feng, Qi
发表日期	2020
ISSN	0925-8574
EISSN	1872-6992
卷号	147
英文摘要	On China's Loess Plateau, where the distribution of soil organic carbon (soil - C-org) is mainly influenced by topography, afforestation is an important strategy to sequester carbon and reduce soil erosion. To explore the effects of topography on soil - C-org, soil samples were obtained at six depths (0-0.1 m, 0.1-0.2 m, 0.2-0.4 m, 0.4-0.6 m, 0.6-0.8 m, and 0.8-1.0 m) from locations on the Loess Plateau which had supported apricot (Prunus armeniaca L.) growth for 16 years and differed in slope aspect (sunny or semi-sunny vs. shady or semi-shady) and gradient (14 degrees <= S < 20 degrees, 20 degrees = S < 25 degrees, or 25 degrees <= S <= 31 degrees). Across a depth of 1.0 m, the mean soil - C-org and total soil carbon storage (soil - C-tot) under the shady slope were 7.23 g kg(-1) and 77.41 Mg ha(-1), respectively; while under the sunny slope, these were 6.81 g kg-1 and 74.22 Mg ha(-1), respectively. Both the soil - C-org and soil - C-tot increased with slope gradient, with soil - C-org rising from 6.68 g kg(-1) to 7.01 g kg(-1), and to 7.34 g kg(-1), and soil - C-tot changing from 72.60 Mg ha(-1) to 75.35 Mg ha(-1), and to 79.40 Mg ha(-1), respectively. Slope aspect and gradient interacted in influencing soil - C-org, but not soil - C-tot. Across both slope aspect and gradient, roughly half of soil - C-tot was found within the first 0.4 m depth of soil. Overall a steep shady slope (vs. sunny gentle slope) was more favorable to the preservation of soil - C-org, and would, accordingly, be of greater importance with respect to soil - C-org protection and implementation of afforestation policy on the Loess Plateau and similar fragile environments worldwide.
英文关键词	Slope aspect; Slope gradient; Soil organic carbon; Afforestation; Loess Plateau
WOS研究方向	Environmental Sciences & Ecology ; Engineering
WOS类目	Ecology ; Engineering, Environmental ; Environmental Sciences
WOS关键词	TOTAL NITROGEN STOCKS ; DIFFERENT LAND USES ; ORGANIC-CARBON ; ECOLOGICAL RESTORATION ; SPATIAL-DISTRIBUTION ; TOPOGRAPHIC FACTORS ; RIVER-BASIN ; FOREST ; VEGETATION ; STORAGE
WOS记录号	WOS:000519577900014
来源期刊	ECOLOGICAL ENGINEERING
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/239353
作者单位	[Zhang, Xiaofang; Liu, Chunfang; Zhou, Junju; Zhu, Guofeng; Dong, Xiaogang; Cao, Jianjun] Northwest Normal Univ, Coll Geog & Environm Sci, Lanzhou 730070, Peoples R China; [Adamowski, Jan F.] McGill Univ, Fac Agr & Environm Sci, Dept Bioresource Engn, Quebec City, PQ H9X 3V9, Canada; [Liu, Chunfang] Gansu Engn Res Ctr Land Utilizat & Comprehens Con, Lanzhou 730070, Peoples R China; [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 73000, Peoples R China
推荐引用方式 GB/T 7714	Zhang, Xiaofang,Adamowski, Jan F.,Liu, Chunfang,et al. Which slope aspect and gradient provides the best afforestation-driven soil carbon sequestration on the China's Loess Plateau?[J]. 中国科学院西北生态环境资源研究院,2020,147.
APA	Zhang, Xiaofang.,Adamowski, Jan F..,Liu, Chunfang.,Zhou, Junju.,Zhu, Guofeng.,...&Feng, Qi.(2020).Which slope aspect and gradient provides the best afforestation-driven soil carbon sequestration on the China's Loess Plateau?.ECOLOGICAL ENGINEERING,147.
MLA	Zhang, Xiaofang,et al."Which slope aspect and gradient provides the best afforestation-driven soil carbon sequestration on the China's Loess Plateau?".ECOLOGICAL ENGINEERING 147(2020).