Land use change decreases soil carbon stocks in Tibetan grasslands
文献类型：期刊论文
| 作者 | Qiao, Na1,4; Xu, Xingliang2; Cao, Guangmin3; Ouyang, Hua2; Kuzyakov, Yakov2,5,6,7 |
| 刊名 | plant and soil
 |
| 出版日期 | 2015-10-01 |
| 卷号 | 395期号:1-2页码:231-241 |
| 关键词 | Alpine meadow Pasture Cropland Soil organic carbon Total nitrogen delta C-13 delta N-15 |
| 中文摘要 | land use is an important factor affecting soil organic carbon (soc) dynamics and can produce positive c climate feedback, but its effects remain unknown for tibetan ecosystems. recent land use changes have converted the traditional winter kobresia pastures of nomads in the northeastern tibetan plateau to elymus pastures or even to cropland. detailed soc measurements up to 30-cm depth were combined with analysis of delta c-13, delta n-15, bulk density, microbial c, and n contents in three land use types. bulk density was decreased by conversion from kobresia pasture to cropland but increased by conversion to elymus pasture. the loss of 1 % of soc caused by land use change leads to delta c-13 increase of 0.8 aeuro degrees. conversion to cropland significantly decreased soc stocks (10 %) and microbial biomass c, but the c loss (1.6 %) was insignificant in elymus pasture. land use changes strongly increased soil delta n-15 in the top 5 cm. conversion to elymus pasture did not change the c stocks, but conversion to cropland decreased c stocks by 10 % within 10 years. soil delta c-13 and delta n-15 data indicate acceleration of c and n cycling due to the replacement of kobresia pasture by elymus pasture and cropland. |
| 英文摘要 | land use is an important factor affecting soil organic carbon (soc) dynamics and can produce positive c climate feedback, but its effects remain unknown for tibetan ecosystems. |
| WOS标题词 | science & technology ; life sciences & biomedicine |
| 类目[WOS] | agronomy ; plant sciences ; soil science |
| 研究领域[WOS] | agriculture ; plant sciences |
| 关键词[WOS] | haibei alpine meadow ; microbial biomass-c ; organic-carbon ; extraction method ; nitrogen ; ecosystem ; plateau ; isotope ; dynamics ; china |
| 收录类别 | SCI |
| 语种 | 英语 |
| WOS记录号 | WOS:000361757400017 |
| 源URL | [http://ir.nwipb.ac.cn/handle/363003/5502]  |
| 专题 | 西北高原生物研究所_中国科学院西北高原生物研究所 |
| 作者单位 | 1.Chinese Acad Sci, Key Lab Trop Forest Ecol, Xishuangbanna Trop Bot Garden, Menglun Mengla 666303, Yunnan, Peoples R China 2.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, Key Lab Ecosyst Network Observat & Modeling, Beijing 100101, Peoples R China 3.Chinese Acad Sci, Northwest Inst Plateau Biol, Xining 810008, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China 5.Univ Gottingen, Dept Soil Sci Temperate Ecosyst, D-37073 Gottingen, Germany 6.Univ Gottingen, Dept Agr Soil Sci, D-37073 Gottingen, Germany 7.Kazan Fed Univ, Inst Environm Sci, Kazan, Russia |
| 推荐引用方式 GB/T 7714 | Qiao, Na,Xu, Xingliang,Cao, Guangmin,et al. Land use change decreases soil carbon stocks in Tibetan grasslands[J]. plant and soil,2015,395(1-2):231-241. |
| APA | Qiao, Na,Xu, Xingliang,Cao, Guangmin,Ouyang, Hua,&Kuzyakov, Yakov.(2015).Land use change decreases soil carbon stocks in Tibetan grasslands.plant and soil,395(1-2),231-241. |
| MLA | Qiao, Na,et al."Land use change decreases soil carbon stocks in Tibetan grasslands".plant and soil 395.1-2(2015):231-241. |
入库方式： OAI收割
来源：西北高原生物研究所
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