caa a22 4500 605480842 CHVBK 20210128100417.0 cr unu---uuuuu 210128e20151201xx s 000 0 eng 10.1007/s11099-015-0142-1 doi (NATIONALLICENCE)springer-10.1007/s11099-015-0142-1 Ecosystem carbon exchange under different land use on the Qinghai-Tibetan plateau [Elektronische Daten] [C. Luo, X. Zhu, S. Wang, S. Cui, Z. Zhang, X. Bao, L. Zhao, Y. Li, X. Zhao] 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 (Re) 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 Re 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. The Institute of Experimental Botany, 2015 ecosystem carbon exchange nationallicence land use nationallicence Tibetan plateau nationallicence AB : aboveground biomass nationallicence AB/BB : the ratio of aboveground to belowground biomass nationallicence AO : annual oat pasture nationallicence APL : abandoned cropland/pasture nationallicence BB : belowground biomass for 0-20 cm nationallicence GPP : gross primary production nationallicence P N : net photosynthesis nationallicence NAM : native alpine meadow nationallicence NEE : net ecosystem exchange nationallicence PEN : perennial Elymus nutans pasture nationallicence Re : ecosystem respiration nationallicence SM : seasonal average soil moisture at 5 cm nationallicence ST : seasonal average soil temperature at 5 cm nationallicence TB : total biomass nationallicence Luo C. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut Zhu X. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut Wang S. Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 100085, Beijing, China aut Cui S. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut Zhang Z. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut Bao X. University of the Chinese Academy of Sciences, 100049, Beijing, China aut Zhao L. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut Li Y. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut Zhao X. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut Photosynthetica The Institute of Experimental Biology of the Czech Academy of Sciences 53/4(2015-12-01), 527-536 0300-3604 53:4<527 2015 53 11099 https://doi.org/10.1007/s11099-015-0142-1 text/html Onlinezugriff via DOI BK010053 XK010053 XK010000 Metadata rights reserved Springer special CC-BY-NC licence nationallicence 1 research-article jats NATIONALLICENCE NATIONALLICENCE NL-springer NATIONALLICENCE 856 40 https://doi.org/10.1007/s11099-015-0142-1 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Luo C. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut NATIONALLICENCE 700 1- Zhu X. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut NATIONALLICENCE 700 1- Wang S. Key Laboratory of Alpine Ecology and Biodiversity, Institute of Tibetan Plateau Research, Chinese Academy of Sciences, 100085, Beijing, China aut NATIONALLICENCE 700 1- Cui S. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut NATIONALLICENCE 700 1- Zhang Z. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut NATIONALLICENCE 700 1- Bao X. University of the Chinese Academy of Sciences, 100049, Beijing, China aut NATIONALLICENCE 700 1- Zhao L. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut NATIONALLICENCE 700 1- Li Y. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut NATIONALLICENCE 700 1- Zhao X. Key Laboratory of Adaptation and Evolution of Plateau Biota, Northwest Institute of Plateau Biology, Chinese Academy of Sciences, 810008, Xining, China aut NATIONALLICENCE 773 0- Photosynthetica The Institute of Experimental Biology of the Czech Academy of Sciences 53/4(2015-12-01), 527-536 0300-3604 53:4<527 2015 53 11099