Knowledge Management System of Northwest Institute of Plateau Biology, CAS
Ecosystem carbon exchange under different land use on the Qinghai-Tibetan plateau | |
Luo, C. -Y.1; Zhu, X. -X.1,4; Wang, S. -P.2,3; Cui, S. -J.1,4; Zhang, Z. -H.1,4; Bao, X. -Y.4; Zhao, L.1; Li, Y.1; Zhao, X. -Q.1 | |
2015-12-01 | |
发表期刊 | PHOTOSYNTHETICA |
卷号 | 53期号:4页码:527-536 |
文章类型 | Article |
摘要 | There is a great uncertainty about the effect of land use change on grassland ecosystem in the Tibetan Plateau. Net ecosystem carbon exchange (NEE) was measured for native alpine meadow with winter grazing (NAM), abandoned cropland/pasture (APL), perennial Elymus nutans (PEN), and annual oat pasture (AO) on the Tibetan plateau, during the growing seasons in 2009 and 2010 using a transparent chamber technique (Licor-6400). AO significantly decreased annual average NEE by 21.6, 23.7, and 15.7% compared to PEN, NAM, and APL during the growing season in 2010. Compared to PEN, NAM, and APL, AO significantly decreased average ecosystem respiration (R-e) by 21.1, 52.3, and 39.3%, respectively, during the growing season in 2009. Soil moisture and total aboveground and belowground biomass together explained 39.6% of NEE variation and 71% in gross primary productivity variation. Soil moisture and belowground biomass explained about 83.1% of the R-e variation. Our results indicated that it is possible to convert APL to PEN in the region because it could result in a higher NEE together with higher forage production compared to AO.; There is a great uncertainty about the effect of land use change on grassland ecosystem in the Tibetan Plateau. Net ecosystem carbon exchange (NEE) was measured for native alpine meadow with winter grazing (NAM), abandoned cropland/pasture (APL), perennial Elymus nutans (PEN), and annual oat pasture (AO) on the Tibetan plateau, during the growing seasons in 2009 and 2010 using a transparent chamber technique (Licor-6400). AO significantly decreased annual average NEE by 21.6, 23.7, and 15.7% compared to PEN, NAM, and APL during the growing season in 2010. Compared to PEN, NAM, and APL, AO significantly decreased average ecosystem respiration (R-e) by 21.1, 52.3, and 39.3%, respectively, during the growing season in 2009. Soil moisture and total aboveground and belowground biomass together explained 39.6% of NEE variation and 71% in gross primary productivity variation. Soil moisture and belowground biomass explained about 83.1% of the R-e variation. Our results indicated that it is possible to convert APL to PEN in the region because it could result in a higher NEE together with higher forage production compared to AO. |
关键词 | Ecosystem Carbon Exchange Land Use Tibetan Plateau |
WOS标题词 | Science & Technology ; Life Sciences & Biomedicine |
DOI | 10.1007/s11099-015-0142-1 |
关键词[WOS] | SOIL CO2 EFFLUX ; ALPINE MEADOW ECOSYSTEM ; NORTHERN TEMPERATE GRASSLAND ; MOUNTAIN GRASSLANDS ; DIOXIDE EXCHANGE ; SEASONAL PATTERNS ; TROPICAL PASTURE ; ROOT RESPIRATION ; EDDY COVARIANCE ; FLUXES |
收录类别 | SCI |
语种 | 英语 |
项目资助者 | National Basic Research Programs(2013CB956000) ; Chinese Academy of Sciences(XDA05070205) ; Science and Technology Bureau of Qinghai(2012-Z-918Q) ; National Science and Technology Support Program(2012BAD13B01 ; 2014BAC05B04) |
WOS研究方向 | Plant Sciences |
WOS类目 | Plant Sciences |
WOS记录号 | WOS:000363248600006 |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://210.75.249.4/handle/363003/5488 |
专题 | 中国科学院西北高原生物研究所 |
作者单位 | 1.Chinese Acad Sci, Northwest Inst Plateau Biol, Key Lab Adaptat & Evolut Plateau Biota, Xining 810008, Peoples R China 2.Chinese Acad Sci, Inst Tibetan Plateau Res, Key Lab Alpine Ecol & Biodivers, Beijing 100085, Peoples R China 3.CAS Ctr Excellence Tibetan Plateau Earth Sci, Beijing 100101, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
推荐引用方式 GB/T 7714 | Luo, C. -Y.,Zhu, X. -X.,Wang, S. -P.,et al. Ecosystem carbon exchange under different land use on the Qinghai-Tibetan plateau[J]. PHOTOSYNTHETICA,2015,53(4):527-536. |
APA | Luo, C. -Y..,Zhu, X. -X..,Wang, S. -P..,Cui, S. -J..,Zhang, Z. -H..,...&Zhao, X. -Q..(2015).Ecosystem carbon exchange under different land use on the Qinghai-Tibetan plateau.PHOTOSYNTHETICA,53(4),527-536. |
MLA | Luo, C. -Y.,et al."Ecosystem carbon exchange under different land use on the Qinghai-Tibetan plateau".PHOTOSYNTHETICA 53.4(2015):527-536. |
条目包含的文件 | 下载所有文件 | |||||
文件名称/大小 | 文献类型 | 版本类型 | 开放类型 | 使用许可 | ||
Luo-2015-Ecosystem c(579KB) | 开放获取 | CC BY-NC-SA | 浏览 下载 |
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。
修改评论