干旱区生态环境知识资源中心(Arid): Hydrochemical Characteristics Jointly Determine the Transport and Cycling of Soil Carbon, Nitrogen, and Phosphorus in an Arid Chinese Wetland

Arid

DOI	10.1029/2020JG005697
	Hydrochemical Characteristics Jointly Determine the Transport and Cycling of Soil Carbon, Nitrogen, and Phosphorus in an Arid Chinese Wetland
	Liu, Bing; Zhao, Wenzhi; Wen, Zijuan; Yang, Yuting; Chang, Xuexiang; Zhu, Zhaocen; Si, Rui
通讯作者	Liu, B
来源期刊	JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES
ISSN	2169-8953
EISSN	2169-8961
出版年	2020
卷号	125 期号:7
英文摘要	Salt accumulation gradually changes the cycling of carbon (C), nitrogen (N), and phosphorus (P) and may even transform sinks into sources in arid wetlands. However, it's not clear how hydrochemical characteristics affect the wetland's source or sink function or how they affect C, N, and P cycling in arid regions. To clarify these relationships, we conducted field measurement in arid northern China. We simulated the variations of hydrochemical characteristics and the storage and stoichiometry of C, N, and P using the process-based DeNitrification-DeComposition (DNDC) and Hydrus-1D models. The meteorological and hydrological processes had obvious characteristics of seasonal and interannual changes. The measured evapotranspiration averaged 660.23 and 587.94 mm year(-1)in the saltmarsh and riparian wetlands, respectively. The soil showed a clear trend with higher SO42-, Na+, Ca2+, and Cl(-)fractions in comparison with lower Mg2+, K+, and HCO(3)(-)fractions, with the major ion and nutrient concentrations gradually decreasing with increasing depth in the soil. The major ion types had characteristics of Na+-Ca2+-SO42--Cl(-)in the saltmarsh wetland and riparian wetland. The storage of total C, N, and P were 372.72 +/- 66.52 t C/hm(2), 10.92 +/- 2.59 t N/hm(2), and 17.55 +/- 1.54 t P/hm(2)in the saltmarsh wetland versus 119.72 +/- 27.88 t C/hm(2), 4.38 +/- 1.24 t N/hm(2), and 13.17 +/- 1.46 t P/hm(2)in the riparian wetland. Therefore, wetland salinization in our study led to increased soil C, N, and P contents and storage and thereby enhanced the sink function of the wetlands.
英文关键词	hydrochemical characteristics ion concentrations nutrient concentrations carbon nitrogen phosphorus
类型	Article
语种	英语
收录类别	SCI-E
WOS记录号	WOS:000556580000010
WOS关键词	GREENHOUSE-GAS EMISSIONS ; FRESH-WATER ; ORGANIC-CARBON ; SPARTINA-ALTERNIFLORA ; FLUCTUATING SALINITY ; INCREASING SALINITY ; N2O EMISSIONS ; RIVER ESTUARY ; CH4 EMISSION ; HEIHE RIVER
WOS类目	Environmental Sciences ; Geosciences, Multidisciplinary
WOS研究方向	Environmental Sciences & Ecology ; Geology
来源机构	兰州大学 ; 清华大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/325464
作者单位	[Liu, Bing; Zhao, Wenzhi; Chang, Xuexiang; Zhu, Zhaocen; Si, Rui] Chinese Acad Sci, Key Lab Ecohydrol Inland River Basin, Linze Inland River Basin Res Stn, Northwest Inst Ecoenvironm & Resources, Lanzhou, Peoples R China; [Wen, Zijuan] Lanzhou Univ, Sch Math & Stat, Lanzhou, Peoples R China; [Yang, Yuting] Tsinghua Univ, Dept Hydraul Engn, State Key Lab Hydrosci & Engn, Beijing, Peoples R China
推荐引用方式 GB/T 7714	Liu, Bing,Zhao, Wenzhi,Wen, Zijuan,et al. Hydrochemical Characteristics Jointly Determine the Transport and Cycling of Soil Carbon, Nitrogen, and Phosphorus in an Arid Chinese Wetland[J]. 兰州大学, 清华大学,2020,125(7).
APA	Liu, Bing.,Zhao, Wenzhi.,Wen, Zijuan.,Yang, Yuting.,Chang, Xuexiang.,...&Si, Rui.(2020).Hydrochemical Characteristics Jointly Determine the Transport and Cycling of Soil Carbon, Nitrogen, and Phosphorus in an Arid Chinese Wetland.JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES,125(7).
MLA	Liu, Bing,et al."Hydrochemical Characteristics Jointly Determine the Transport and Cycling of Soil Carbon, Nitrogen, and Phosphorus in an Arid Chinese Wetland".JOURNAL OF GEOPHYSICAL RESEARCH-BIOGEOSCIENCES 125.7(2020).