IGGCAS OpenIR  > 新生代地质与环境院重点实验室
Simulation of dissolved organic carbon concentrations and fluxes in Chinese monsoon forest ecosystems using a modified TRIPLEX-DOC model
Shi, Shengwei1,2,3; Yang, Mingxia3; Hou, Yue3; Peng, Changhui1,4; Wu, Haibin5,6,7; Zhu, Qiuan8; Liang, Qiong2; Xie, Junfei9; Wang, Meng10
2019-12-20
Source PublicationSCIENCE OF THE TOTAL ENVIRONMENT
ISSN0048-9697
Volume697Pages:15
AbstractDissolved organic carbon (DOC) plays an important role in global and regional carbon cycles. However, the quantification of DOC in forest ecosystems remains uncertain. Here, the processed-based biogeochemical model TRIPLEX-DOCwas modified by optimizing the function of soil organic carbon distribution with increasing depths, as well as DOC sorption-desorption efficiency. The model was validated by field measurements of DOC concentration and flux at five forest sites and Beijiang River basin in monsoon regions of China. Model validation indicated that seasonal patterns of DOC concentration across climatic zones were different, and these differences were captured by our model. Importantly, the modified model performed better than the original model. Indeed, model efficiency of the modified model increased from -0.78 to 0.19 for O horizon predictions, and from -0.46 to 0.42 for the mineral soils predictions. Likewise, DOC fluxes were better simulated by the modified model. At the site scale, the simulated DOC fluxes were strongly correlated with the observed values (R-2 = 0.97, EF = .91). At the regional scale, the DOC flux predicted in the Beijiang River basin was 16.44 kg C/ha, whichwas close to the observed value of 17 kg C/ha. Using sensitivity analysis, we showed that temperature, precipitation and temperature sensitivity of DOC decomposition (Q(10)) were the most sensitive parameters when predicting DOC concentrations and fluxes in forest soils. We also found that both the percentage of DOC flux to forest net ecosystem productivity, and the retention of DOC by mineral soil were highly correlated with the amount of precipitation. Overall, our model validations indicated that the modified TRIPLEX-DOC model is a useful tool for simulating the dynamics of DOC concentrations and fluxes in forest ecosystems. We highlight that more accurate estimates of parameter Q(10) in deep mineral soils can reduce model uncertainty, when simulating DOC concentrations and fluxes in forest soils. (C) 2019 Elsevier B.V. All rights reserved.
KeywordForest carbon cycle Leaching Soil organic carbon TRIPLEX-DOC model DOC fluxes Precipitation
DOI10.1016/j.scitotenv.2019.134054
Funding OrganizationNational Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
WOS KeywordPROCESS-ORIENTED MODEL ; SUBTROPICAL FOREST ; TEMPERATURE SENSITIVITY ; SOIL SOLUTION ; CUNNINGHAMIA-LANCEOLATA ; SEQUESTRATION CAPACITY ; ASSESSING PRODUCTIVITY ; CLIMATE-CHANGE ; NO EMISSIONS ; CLOUD FOREST
Language英语
Funding ProjectNational Science Foundation of China[41401277] ; National Science Foundation of China[41601312] ; National Science Foundation of China[41601098] ; National Key Research and Development Program of China[2016YFC0500203]
Funding OrganizationNational Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China ; National Science Foundation of China ; National Science Foundation of China ; National Key Research and Development Program of China ; National Key Research and Development Program of China
WOS Research AreaEnvironmental Sciences & Ecology
WOS SubjectEnvironmental Sciences
WOS IDWOS:000499668600079
PublisherELSEVIER
Citation statistics
Document Type期刊论文
Identifierhttp://ir.iggcas.ac.cn/handle/132A11/95791
Collection新生代地质与环境院重点实验室
Corresponding AuthorPeng, Changhui
Affiliation1.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China
2.Beijing Univ Agr, Beijing 102206, Peoples R China
3.Northwest A&F Univ, Coll Forestry, Ctr Ecol Forecasting & Global Change, Yangling 712100, Shaanxi, Peoples R China
4.Univ Quebec Montreal, Dept Biol Sci, Ctr CEF ESCER, Montreal, PQ H3C 3P8, Canada
5.Chinese Acad Sci, Inst Geol & Geophys, Key Lab Cenozo Geol & Environm, Beijing 100029, Peoples R China
6.CAS Ctr Excellence Life & Paleoenvironm, Beijing 100044, Peoples R China
7.Univ Chinese Acad Sci, Beijing 100049, Peoples R China
8.Hohai Univ, Coll Hydrol & Water Resources, Nanjing 210098, Jiangsu, Peoples R China
9.Beijing Inst Landscape Architecture, Beijing 100102, Peoples R China
10.Northeast Normal Univ, State Environm Protect Key Lab Wetland Ecol & Veg, Changchun 130024, Jilin, Peoples R China
Recommended Citation
GB/T 7714
Shi, Shengwei,Yang, Mingxia,Hou, Yue,et al. Simulation of dissolved organic carbon concentrations and fluxes in Chinese monsoon forest ecosystems using a modified TRIPLEX-DOC model[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2019,697:15.
APA Shi, Shengwei.,Yang, Mingxia.,Hou, Yue.,Peng, Changhui.,Wu, Haibin.,...&Wang, Meng.(2019).Simulation of dissolved organic carbon concentrations and fluxes in Chinese monsoon forest ecosystems using a modified TRIPLEX-DOC model.SCIENCE OF THE TOTAL ENVIRONMENT,697,15.
MLA Shi, Shengwei,et al."Simulation of dissolved organic carbon concentrations and fluxes in Chinese monsoon forest ecosystems using a modified TRIPLEX-DOC model".SCIENCE OF THE TOTAL ENVIRONMENT 697(2019):15.
Files in This Item:
There are no files associated with this item.
Related Services
Recommend this item
Bookmark
Usage statistics
Export to Endnote
Google Scholar
Similar articles in Google Scholar
[Shi, Shengwei]'s Articles
[Yang, Mingxia]'s Articles
[Hou, Yue]'s Articles
Baidu academic
Similar articles in Baidu academic
[Shi, Shengwei]'s Articles
[Yang, Mingxia]'s Articles
[Hou, Yue]'s Articles
Bing Scholar
Similar articles in Bing Scholar
[Shi, Shengwei]'s Articles
[Yang, Mingxia]'s Articles
[Hou, Yue]'s Articles
Terms of Use
No data!
Social Bookmark/Share
Add to CiteULike Add to Connotea Add to Del.icio.us Add to Digg Add to Reddit Add to Technorati
All comments (0)
No comment.
 

Items in the repository are protected by copyright, with all rights reserved, unless otherwise indicated.