Grazing alters warming effects on leaf photosynthesis and respiration in Gentiana straminea, an alpine forb species
Grazing alters warming effects on leaf photosynthesis and respiration in Gentiana straminea, an alpine forb species
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放牧改变了高山非草类植物秦艽叶片光合作用和呼吸作用的变暖效应
DOI:
10.1093/jpe/rtt010
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发表时间:
2013-10
影响因子:
2.7
通讯作者:
Tang YH
中科院分区:
文献类型:
--
作者:
Shen HH;Wang SP;Tang YH
Aims Vast grasslands on the t ibetan Plateau are almost all under livestock grazing. It is unclear, however, what is the role that the grazing will play in carbon cycle of the grassland under future climate warming. We found in our previous study that experimental warming can shift the optimum temperature of saturated photosynthetic rate into higher temperature in alpine plants. In this study, we proposed and tested the hypothesis that livestock grazing would alter the warming effect on photosynthetic and respiration through changing physical environments of grassland plants. Methods Experimental warming was carried by using an infrared heating system to increase the air temperature by 1.2 and 1.7° c during the day and night, respectively. t he warming and ambient temperature treatments were crossed over to the two grazing treatments, grazing and un-grazed treatments, respectively. t o assess the effects of grazing and warming, we examined photosynthesis, dark respiration, maximum rates of the photosynthetic electron transport (J max), r u bP carboxylation (V cmax) and temperature sensitivity of respiration Q 10 in Gentiana straminea, an alpine species widely distributed on the t ibetan grassland. leaf morphological and chemical properties were also examined to understand the physiological responses.
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影响因子:
6.9
作者:
Hikosaka, K;Ishikawa, K;Onoda, Y
通讯作者:
Onoda, Y
影响因子:
11.6
作者:
Bruhn, Dan;Egerton, John J. G.;Ball, Marilyn C.
通讯作者:
Ball, Marilyn C.
DOI:
10.1111/j.1365-3040.2009.02067.x
发表时间:
2010-03
期刊:
Plant, cell & environment
影响因子:
--
作者:
W. Yamori;J. R. Evans;S. von Caemmerer
通讯作者:
W. Yamori;J. R. Evans;S. von Caemmerer
影响因子:
3.7
作者:
S. Silim;Natalie Ryan;D. S. Kubien
通讯作者:
S. Silim;Natalie Ryan;D. S. Kubien
DOI:
--
发表时间:
1958
期刊:
--
影响因子:
--
作者:
W. Ruhland
通讯作者:
W. Ruhland