Large-Scale Distribution of Molecular Components in Chinese Grassland Soils: The Influence of Input and Decomposition Processes
文献类型：期刊论文
| 作者 | Dai Guohua4; Ma Tian3,4 ; Zhu Shanshan3,4; Liu Zongguang4; Chen Dima4; Bai Yongfei3,4; Chen Litong2; He Jin-Sheng1,2; Zhu Juntao5; Zhang Yangjian3,5
|
| 刊名 | Journal of Geophysical Research: Biogeosciences
 |
| 出版日期 | 2018-01 |
| 卷号 | 123页码:239-255 |
| 关键词 | PARTICLE-SIZE FRACTIONS TOTAL ORGANIC-CARBON FATTY-ACIDS SEASONAL-VARIATIONS EXTRACTABLE LIPIDS ALPINE GRASSLAND LAND-USE MATTER FOREST NITROGEN |
| ISSN号 | 2169-8953 |
| DOI | 10.1002/2017JG004233 |
| 文献子类 | Article |
| 英文摘要 | Chinese grasslands hold a third of the national soil organic carbon (OC) stocks but remain poorly investigated in terms of soil molecular components and their distribution patterns. Such information is important for understanding mechanisms governing grassland soil OC dynamics and its response to global changes. Here, employing solvent-extractable compounds as a group of widely-used biomarkers, we present a large-scale study on the distribution of different soil OC components (including plant- and microbial-derived carbohydrates, aliphatic and cyclic lipids) in the surface soils of Chinese grasslands, spanning from temperate grasslands in the arid/semi-arid regions to alpine grasslands on the Qinghai-Tibetan Plateau. We show that alpine grassland soils are more enriched with carbohydrates and plant-derived compounds relative to the temperate counterparts due to temperature-inhibited decomposition. While plant belowground biomass plays a key role in explaining the spatial variation of compounds in the alpine grasslands, climatic variables do in the temperate region. In particular, aliphatic lipids accumulate with increasing mean annual temperature in the temperate grasslands due to a preferential decay of labile soil OC, whereas they decrease in the alpine grasslands owing to dilution by an enhanced plant input of non-lipid components. Collectively, these results demonstrate different mechanisms governing the distribution of solvent-extractable compounds in grassland soils, with climate-mediated decomposition processes dominating in the temperate grasslands and plant inputs being more important in the alpine region. In the context of climate change, alterations to soil OC input and decomposition processes may have varied impacts on soil carbon cycling in these two regions. |
| WOS关键词 | soil organic carbon ; biomarker ; Qinghai-Tibetan Plateau ; Inner Mongolia ; aliphatic lipid ; carbohydrate |
| WOS研究方向 | Environmental Sciences ; Geosciences, Multidisciplinary |
| 语种 | 英语 |
| WOS记录号 | WOS:000425517800018 |
| 源URL | [http://ir.yic.ac.cn/handle/133337/40073]  |
| 专题 | 中国科学院烟台海岸带研究所 个人在本单位外知识产出 |
| 通讯作者 | Feng Xiaojuan |
| 作者单位 | 1.Department of Ecology, College of Urban and Environmental Sciences, Peking University, Beijing, 100871, China. 2.Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, Xining, 810008, China. 3.State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China. 4.State Key Laboratory of Vegetation and Environmental Change, Institute of Botany, Chinese Academy of Sciences, Beijing, 100093, China. 5.Key Laboratory of Ecosystem Network Observation and Modeling, Institute of Geographic Sciences and Natural Resources Research, Chinese Academy of Sciences, Beijing 100101, China. 6.6Key Laboratory of Forest Ecology and Management, Institute of Applied Ecology, Chinese Academy of Sciences, Shenyang 110164, China. |
| 推荐引用方式 GB/T 7714 | Dai Guohua,Ma Tian,Zhu Shanshan,et al. Large-Scale Distribution of Molecular Components in Chinese Grassland Soils: The Influence of Input and Decomposition Processes[J]. Journal of Geophysical Research: Biogeosciences,2018,123:239-255. |
| APA | Dai Guohua.,Ma Tian.,Zhu Shanshan.,Liu Zongguang.,Chen Dima.,...&Feng Xiaojuan.(2018).Large-Scale Distribution of Molecular Components in Chinese Grassland Soils: The Influence of Input and Decomposition Processes.Journal of Geophysical Research: Biogeosciences,123,239-255. |
| MLA | Dai Guohua,et al."Large-Scale Distribution of Molecular Components in Chinese Grassland Soils: The Influence of Input and Decomposition Processes".Journal of Geophysical Research: Biogeosciences 123(2018):239-255. |
入库方式： OAI收割
来源：烟台海岸带研究所
浏览0
下载0
收藏0
其他版本
除非特别说明，本系统中所有内容都受版权保护，并保留所有权利。