干旱区生态环境知识资源中心(Arid): Soil aggregation and aggregate-associated organic carbon under typical natural halophyte communities in arid saline areas of Northwest China

Arid

	Soil aggregation and aggregate-associated organic carbon under typical natural halophyte communities in arid saline areas of Northwest China
	Cheng Zhibo; Wang Jingya; Gale William J; Yang Haichang; Zhang Fenghua
来源期刊	Pedosphere
ISSN	1002-0160
出版年	2020
卷号	30 期号:2 页码:236-243
英文摘要	Information on the effects of halophyte communities on soil organic carbon (SOC) is useful for sequestrating C in arid regions.In this study,we identified four typical natural halophyte communities in the Manasi River Basin in Xinjiang Province,Northeast China,namely,Karelinia caspia (Pall.) Less.,Bassia dasyphylla (Fisch.et C.A.Mey.) Kuntze,Haloxylon ammodendron (C.A.Mey.) Bunge,and Tamarix ramosissima Lour.We compared soil aggregation and aggregated-associated SOC under these communities.The aggregate fraction of 0.053-0.25 mm accounted for 47%-75% of the total soil mass,significantly more than the >0.25 and <0.053 mm fractions,under all the halophyte communities.Significant differences in soil aggregate size distribution were observed among the plant communities,with the H.ammodendron and B.dasyphylla communities showing the highest proportions of >0.25 mm aggregates (13.3%-43.8%) and T.ramosissima community having more <0.053 mm aggregates (14.1%-27.2%).Aggregate-associated SOC concentrations were generally the highest in the >0.25 mm fraction,followed by the <0.053 mm fraction,and were the lowest in the 0.053-0.25 mm fraction;however,because of their large mass,0.25-0.053 mm aggregates contributed significantly more to the total SOC.Total SOC concentrations (0-60 cm depth) decreased in the order of H.ammodendron (5.7 g kg~(-1)) >T.ramosissima (4.9 g kg~(-1)) >K.caspia (4.2 g kg~(-1)) >B.dasyphylla (3.4 g kg~(-1)).The H.ammodendron community had the highest total SOC and aggregate-associated SOC,which was primarily because aggregate-associated SOC content at the 0-10 and 10-20 cm depths under this community were higher than those under other plant communities.The H.ammodendron community could be beneficial for increasing SOC in saline soils in the arid region.
英文关键词	arid regions C sequestration soil aggregates soil organic C saline soils
类型	Article
语种	英语
收录类别	CSCD
WOS研究方向	Agriculture
CSCD记录号	CSCD:6694572
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/336270
作者单位	Cheng Zhibo, College of Agronomy,Shihezi University;;Shihezi University, ;;Key Laboratory of Oasis Ecology Agriculture of Xinjiang, ;;, Xinjiang;;Xinjiang 832003;;832003.; Yang Haichang, College of Agronomy,Shihezi University;;Shihezi University, ;;Key Laboratory of Oasis Ecology Agriculture of Xinjiang, ;;, Xinjiang;;Xinjiang 832003;;832003.; Zhang Fenghua, College of Agronomy,Shihezi University;;Shihezi University, ;;Key Laboratory of Oasis Ecology Agriculture of Xinjiang, ;;, Xinjiang;;Xinjiang 832003;;832003.; Wang Jingya, College of Agronomy,Shihezi University, Xinjiang 832003, China.; Gale William J, College of Agronomy,Shihezi University, Xinjiang 832003, China.
推荐引用方式 GB/T 7714	Cheng Zhibo,Wang Jingya,Gale William J,et al. Soil aggregation and aggregate-associated organic carbon under typical natural halophyte communities in arid saline areas of Northwest China[J],2020,30(2):236-243.
APA	Cheng Zhibo,Wang Jingya,Gale William J,Yang Haichang,&Zhang Fenghua.(2020).Soil aggregation and aggregate-associated organic carbon under typical natural halophyte communities in arid saline areas of Northwest China.Pedosphere,30(2),236-243.
MLA	Cheng Zhibo,et al."Soil aggregation and aggregate-associated organic carbon under typical natural halophyte communities in arid saline areas of Northwest China".Pedosphere 30.2(2020):236-243.