Microaggregates regulated by edaphic properties determine the soil carbon stock in Tibetan alpine grasslands
文献类型：期刊论文
| 作者 | Pan, Junxiao1,3; Wang, Jinsong1,3; Zhang, Ruiyang1,3; Tian, Dashuan1,3; Cheng, Xiaoli2; Wang, Song1,3; Chen, Chen1,3; Yang, Lu1,3; Niu, Shuli1,3 |
| 刊名 | CATENA
 |
| 出版日期 | 2021-11-01 |
| 卷号 | 206页码:8 |
| 关键词 | Soil carbon stock Aggregate associated carbon Edaphic factors Soil aggregation Carbon sequestration |
| ISSN号 | 0341-8162 |
| DOI | 10.1016/j.catena.2021.105570 |
| 通讯作者 | Wang, Jinsong(wangjinsong@igsnrr.ac.cn) ; Niu, Shuli(sniu@igsnrr.ac.cn) |
| 英文摘要 | Soil carbon (C) stock and aggregate associated C are controlled by complex interactions among climate, edaphic, plant, and microbial factors. However, the relative contribution of these abiotic and biotic factors to variations in soil aggregate associated C and their effects on soil C stock are rarely evaluated. In this study, we investigated the influences of climatic, edaphic, plant, and microbial drivers on soil aggregate associated C and their relative contribution to soil C stock, based on a transect study across 45 sites in alpine grasslands on the Tibetan Plateau where stores a large amount of soil C. Microaggregate associated C contributed most to soil C stock, followed by macroaggregate associated C and silt + clay associated C. The variations of each aggregate associated C were related to changes in soil bulk density, soil available nitrogen, soil total nitrogen, root biomass, and bacteria diversity. Among these determinants, the edaphic factors (e.g., bulk density, soil available nitrogen, and total nitrogen) contributed most to the variation of soil C stock, primarily by changing the microaggregate associated C. Our findings highlight the vital roles of soil physicochemical properties in determining aggregate associated C and soil C stabilization across Tibetan alpine grasslands. |
| WOS关键词 | MICROBIAL COMMUNITY STRUCTURE ; ORGANIC-MATTER ; AGGREGATE STABILITY ; PHYSICAL PROTECTION ; GLOBAL CHANGE ; LAND-USE ; STABILIZATION ; DIVERSITY ; NITROGEN ; MECHANISMS |
| 资助项目 | Second Tibetan Plateau Scientific Expedition and Research (STEP) program[2019QZKK0302] ; National Natural Science Foundation of China[31988102] ; China National Postdoctoral Program for Innovative Talents[BX20200330] |
| WOS研究方向 | Geology ; Agriculture ; Water Resources |
| 语种 | 英语 |
| WOS记录号 | WOS:000688449100077 |
| 出版者 | ELSEVIER |
| 资助机构 | Second Tibetan Plateau Scientific Expedition and Research (STEP) program ; National Natural Science Foundation of China ; China National Postdoctoral Program for Innovative Talents |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/165474]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Wang, Jinsong; Niu, Shuli |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Ecosyst Network Observat & Modeling, Inst Geog Sci & Nat Resources Res, Beijing 100101, Peoples R China 2.Yunnan Univ, Sch Ecol & Environm Sci, Kunming 650091, Yunnan, Peoples R China 3.Univ Chinese Acad Sci, Coll Resources & Environm, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Pan, Junxiao,Wang, Jinsong,Zhang, Ruiyang,et al. Microaggregates regulated by edaphic properties determine the soil carbon stock in Tibetan alpine grasslands[J]. CATENA,2021,206:8. |
| APA | Pan, Junxiao.,Wang, Jinsong.,Zhang, Ruiyang.,Tian, Dashuan.,Cheng, Xiaoli.,...&Niu, Shuli.(2021).Microaggregates regulated by edaphic properties determine the soil carbon stock in Tibetan alpine grasslands.CATENA,206,8. |
| MLA | Pan, Junxiao,et al."Microaggregates regulated by edaphic properties determine the soil carbon stock in Tibetan alpine grasslands".CATENA 206(2021):8. |
入库方式： OAI收割
来源：地理科学与资源研究所
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