Sun-induced fluorescence and gross primary productivity during a heat wave.
Sun-induced fluorescence and gross primary productivity during a heat wave.
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DOI：
10.1038/s41598-018-32602-z
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发表时间：
2018-09-21
影响因子：
4.6
通讯作者：
Yakir D
中科院分区：
文献类型：
--
作者：
Wohlfahrt G;Gerdel K;Migliavacca M;Rotenberg E;Tatarinov F;Müller J;Hammerle A;Julitta T;Spielmann FM;Yakir D
太阳诱导叶绿素荧光（SIF）的遥感已被认为是一种有前途的方法来探测全球陆地总初级生产力（GPP）的变化。然而，迄今为止，大多数研究都是在SIF和GPP的变化都是由吸收的光合有效辐射（APAR）和物候的大变化驱动的情况下进行的。在这里，我们量化的SIF和GPP在短期强烈的热浪在地中海松林，在此期间，APAR的变化可以忽略不计。GPP线性下降的过程中的热浪，而SIF略有下降，最初，然后急剧下降，在高峰期的热浪，时间上符合生化损害的光合作用推断从增加的吸收率的羰基硫，二氧化碳。因此，SIF占不到35%的GPP的变化，即使它响应光合作用的损害，似乎提供有限的潜力，在热浪期间定量监测GPP在没有大的变化，APAR。
Remote sensing of sun-induced chlorophyll fluorescence (SIF) has been suggested as a promising approach for probing changes in global terrestrial gross primary productivity (GPP). To date, however, most studies were conducted in situations when/where changes in both SIF and GPP were driven by large changes in the absorbed photosynthetically active radiation (APAR) and phenology. Here we quantified SIF and GPP during a short-term intense heat wave at a Mediterranean pine forest, during which changes in APAR were negligible. GPP decreased linearly during the course of the heat wave, while SIF declined slightly initially and then dropped dramatically during the peak of the heat wave, temporally coinciding with a biochemical impairment of photosynthesis inferred from the increase in the uptake ratio of carbonyl sulfide to carbon dioxide. SIF thus accounted for less than 35% of the variability in GPP and, even though it responded to the impairment of photosynthesis, appears to offer limited potential for quantitatively monitoring GPP during heat waves in the absence of large changes in APAR.
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影响因子：
6.2
作者：
Lu, Xiaoliang;Liu, Zhunqiao;Tang, Jianwu
通讯作者：
Tang, Jianwu
影响因子：
13.5
作者：
Cogliati, S.;Verhoef, W.;Colombo, R.
通讯作者：
Colombo, R.
DOI：
10.1109/tgrs.2016.2621820
发表时间：
2017-03-01
影响因子：
8.2
作者：
Drusch, Matthias;Moreno, Jose;Verhoef, Wout
通讯作者：
Verhoef, Wout
影响因子：
4
作者：
Klein, Tamir;Hoch, Guenter;Koerner, Christian
通讯作者：
Koerner, Christian
影响因子：
64.8
作者：
Ballantyne, A. P.;Alden, C. B.;White, J. W. C.
通讯作者：
White, J. W. C.