Vertical distribution and storage of soil organic and inorganic carbon in a typical inland river basin, Northwest China
文献类型：期刊论文
| 作者 | Yang Fan1,2; Huang Laiming2,3; Yang Renmin1; Yang Fei1 ; Li Decheng1; Zhao Yuguo1,2; Yang Jinling1; Liu Feng1; Zhang Ganlin1,2
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| 刊名 | JOURNAL OF ARID LAND
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| 出版日期 | 2018-04-01 |
| 卷号 | 10期号:2页码:183-201 |
| 关键词 | Heihe River Basin arid ecosystem soil landscape pedogenesis pedogenic carbonate SOC CaCO3 |
| ISSN号 | 1674-6767 |
| DOI | 10.1007/s40333-018-0051-9 |
| 通讯作者 | Zhang Ganlin(glzhang@issas.ac.cn) |
| 英文摘要 | Knowledge of soil carbon (C) distribution and its relationship with the environment can improve our understanding of its biogeochemical cycling and help to establish sound regional models of C cycling. However, such knowledge is limited in environments with complex landscape configurations. In this study, we investigated the vertical distribution and storage of soil organic carbon (SOC) and soil inorganic carbon (SIC) in the 10 representative landscapes (alpine meadow, subalpine shrub and meadow, mountain grassland, mountain forest, typical steppe, desert steppe, Hexi Corridor oases cropland, Ruoshui River delta desert, Alxa Gobi desert, and sandy desert) with contrasting bioclimatic regimes in the Heihe River Basin, Northwest China. We also measured the Sr-87/Sr-86 ratio in soil carbonate to understand the sources of SIC because the ratio can be used as a proxy in calculating the contribution of pedogenic inorganic carbon (PIC) to total SIC. Our results showed that SOC contents generally decreased with increasing soil depth in all landscapes, while SIC contents exhibited more complicated variations along soil profiles in relation to pedogenic processes and parent materials at the various landscapes. There were significant differences of C stocks in the top meter among different landscapes, with SOC storage ranging from 0.82 kg C/m(2) in sandy desert to 50.48 kg C/m(2) in mountain forest and SIC storage ranging from 0.19 kg C/m(2) in alpine meadow to 21.91 kg C/m(2) in desert steppe. SIC contributed more than 75% of total C pool when SOC storage was lower than 10 kg C/m(2), and the proportion of PIC to SIC was greater than 70% as calculated from Sr isotopic ratio, suggesting the critical role of PIC in the C budget of this region. The considerable variations of SOC and SIC in different landscapes were attributed to different pedogenic environments resulted from contrasting climatic regimes, parent materials and vegetation types. This study provides an evidence for a general trade-off pattern between SOC and SIC, showing the compensatory effects of environmental conditions (especially climate) on SOC and SIC formation in these landscapes. This is largely attributed to the fact that the overall decrease in temperature and increase in precipitation from arid deserts to alpine mountains simultaneously facilitate the accumulation of SOC and depletion of SIC. |
| WOS关键词 | HEIHE RIVER ; ENVIRONMENTAL CONTROLS ; HYDROLOGICAL PROCESSES ; TIBETAN PLATEAU ; CLIMATE-CHANGE ; LOESS PLATEAU ; SEQUESTRATION ; LANDSCAPES ; VEGETATION ; GRASSLAND |
| 资助项目 | National Natural Science Foundation of China[91325301] ; National Natural Science Foundation of China[41130530] ; National Natural Science Foundation of China[41371224] ; National Natural Science Foundation of China[41601221] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000429038200002 |
| 出版者 | SPRINGER HEIDELBERG |
| 资助机构 | National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/57418]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Zhang Ganlin |
| 作者单位 | 1.Chinese Acad Sci, Inst Soil Sci, State Key Lab Soil & Sustainable Agr, Nanjing 210008, Jiangsu, Peoples R China 2.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yang Fan,Huang Laiming,Yang Renmin,et al. Vertical distribution and storage of soil organic and inorganic carbon in a typical inland river basin, Northwest China[J]. JOURNAL OF ARID LAND,2018,10(2):183-201. |
| APA | Yang Fan.,Huang Laiming.,Yang Renmin.,Yang Fei.,Li Decheng.,...&Zhang Ganlin.(2018).Vertical distribution and storage of soil organic and inorganic carbon in a typical inland river basin, Northwest China.JOURNAL OF ARID LAND,10(2),183-201. |
| MLA | Yang Fan,et al."Vertical distribution and storage of soil organic and inorganic carbon in a typical inland river basin, Northwest China".JOURNAL OF ARID LAND 10.2(2018):183-201. |
入库方式： OAI收割
来源：地理科学与资源研究所
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