Distribution of carbon isotope composition of modern soils on the Qinghai-Tibetan Plateau
文献类型：期刊论文
| 作者 | Lu, HY; Wu, NQ; Gu, ZY; Guo, ZT; Wang, L; Wu, HB; Wang, G; Zhou, LP; Han, JM; Liu, TS |
| 刊名 | BIOGEOCHEMISTRY
 |
| 出版日期 | 2004-09-01 |
| 卷号 | 70期号:2页码:273-297 |
| ISSN号 | 0168-2563 |
| 关键词 | Carbon Isotope Modem Soils Precipitation Qinghai-tibetan Plateau Temperature Vegetation |
| 文献子类 | Article |
| 英文摘要 | This paper presents a large data set on carbon isotope composition (delta(13)C) of modem soils which were collected under the main vegetation communities along an altitude of 1250-5500 m above sea level in the Qinghai-Tibetan Plateau. The delta(13)C values of 198 samples range from -28.6 to -15.1parts per thousand versus PDB and exhibit a clean relation to different vegetation communities from forest (-25.9 +/- 1.2parts per thousand) to shrub (-24.7 +/- 1.4parts per thousand), steppe (-23.1 +/- 1.3parts per thousand), alpine meadow (-23.6 +/- 0.7parts per thousand), alpine desert steppe (-21.3 +/- 1.6parts per thousand), and alpine desert (-18.9 +/- 2.5parts per thousand). We attributed the observed variability in delta(13)C values to that the mean annual precipitation (MAP) and the mean annual temperature (MAT) are the main factors controlling the distribution of vegetation types in the Tibetan Plateau, which causes the change in carbon isotope composition of modem soils at any given altitude. The result of both linear and nonlinear regression analyses also confirms that MAP and MAT are the major factors affecting the delta(13)C values of surface soils. In the absence of favorable moisture and temperature conditions, low pCO(2) alone is not sufficient to cause the distinct changes in carbon isotope composition of modem soils in the Tibetan Plateau. This study provides some fundamental information on the carbon isotope composition of terrestrial carbon pools and bears some practical significance for the use of carbon isotope data to document vegetation changes and environmental conditions of the high plateau in the past. |
| WOS关键词 | STOMATAL CONDUCTANCE ; PLANT ABUNDANCE ; CLIMATE ; DISCRIMINATION ; GRASSES ; C-4 ; CO2 ; PHOTOSYNTHESIS ; TEMPERATURE ; PALEOSOLS |
| WOS研究方向 | Environmental Sciences & Ecology ; Geology |
| 语种 | 英语 |
| 出版者 | SPRINGER |
| WOS记录号 | WOS:000226518900004 |
| 源URL | [http://ir.iggcas.ac.cn/handle/132A11/64573]  |
| 专题 | 中国科学院地质与地球物理研究所 |
| 通讯作者 | Lu, HY |
| 作者单位 | 1.Chinese Acad Sci, Inst Geol & Geophys, Beijing 100029, Peoples R China 2.Chinese Acad Sci, Inst Earth Environm, Xian 710075, Peoples R China 3.Peking Univ, Dept Geog, Beijing 100871, Peoples R China |
| 推荐引用方式 GB/T 7714 | Lu, HY,Wu, NQ,Gu, ZY,et al. Distribution of carbon isotope composition of modern soils on the Qinghai-Tibetan Plateau[J]. BIOGEOCHEMISTRY,2004,70(2):273-297. |
| APA | Lu, HY.,Wu, NQ.,Gu, ZY.,Guo, ZT.,Wang, L.,...&Liu, TS.(2004).Distribution of carbon isotope composition of modern soils on the Qinghai-Tibetan Plateau.BIOGEOCHEMISTRY,70(2),273-297. |
| MLA | Lu, HY,et al."Distribution of carbon isotope composition of modern soils on the Qinghai-Tibetan Plateau".BIOGEOCHEMISTRY 70.2(2004):273-297. |
入库方式： OAI收割
来源：地质与地球物理研究所
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。