Studies on forest ecosystem physiology: marginal water-use efficiency of a tropical, seasonal, evergreen forest in Thailand

Chen, Mengping; Wang, Guan-Ze; Zhou, Shuangxi; Zhao, Jun-Fu; Zhang, Xiang; He, Chunsheng; Zhang, Yongjiang; Song, Liang; Tan, Zheng-Hong

doi:10.1007/s11676-018-0804-5

Cited by 6 publications

(2 citation statements)

References 26 publications

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“…The studies in this review mainly consider short-term dynamics of stomatal behavior and marginal water use efficiency, whose temporal dynamics could differ across seasons and years (Chen et al, 2018). Incorporation of their long-term dynamic patterns – such as the potential difference between dry versus wet seasons and across forest ecosystems – into ecosystem models remains to be improved.…”

Section: Significance Of Model-experiments Synthesis: Future Perspectivesmentioning

confidence: 99%

Bridging Drought Experiment and Modeling: Representing the Differential Sensitivities of Leaf Gas Exchange to Drought

2019

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Global climate change is expected to increase drought duration and intensity in certain regions while increasing rainfall in others. The quantitative consequences of increased drought for ecosystems are not easy to predict. Process-based models must be informed by experiments to determine the resilience of plants and ecosystems from different climates. Here, we demonstrate what and how experimentally derived quantitative information can improve the representation of stomatal and non-stomatal photosynthetic responses to drought in large-scale vegetation models. In particular, we review literature on the answers to four key questions: (1) Which photosynthetic processes are affected under short-term drought? (2) How do the stomatal and non-stomatal responses to short-term drought vary among species originating from different hydro-climates? (3) Do plants acclimate to prolonged water stress, and do mesic and xeric species differ in their degree of acclimation? (4) Does inclusion of experimentally based plant functional type specific stomatal and non-stomatal response functions to drought help Land Surface Models to reproduce key features of ecosystem responses to drought? We highlighted the need for evaluating model representations of the fundamental eco-physiological processes under drought. Taking differential drought sensitivity of different vegetation into account is necessary for Land Surface Models to accurately model drought responses, or the drought impacts on vegetation in drier environments may be over-estimated.

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Section: Significance Of Model-experiments Synthesis: Future Perspectivesmentioning

confidence: 99%

Bridging Drought Experiment and Modeling: Representing the Differential Sensitivities of Leaf Gas Exchange to Drought

2019

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“…Mongolian oak is an initially fast but overall slowly growing tree species with intermediate shade tolerance that generally reaches 3–9 m in height and begins sexual reproduction at 15–20 years old (Chen et al., 2017; Xu et al., 2022; Zheng et al., 1986). However, Mongolian oak trees grow slowly at their northmost distribution edge (e.g., the northern part of the Greater Khingan Mountains) due to the poor growth conditions, such as cold climate and low soil N availability (Chen et al., 2017; Wang et al., 2005; Xu et al., 2022; Zheng et al., 1986). Dahurian larch is a fast‐growing deciduous, photophilic conifer tree species that reaches 6–10 m in height at its first maturity (about 20 years old) (Jiang et al., 1990; Si & He, 1985).…”

Section: Methodsmentioning

confidence: 99%

Rapid migration of Mongolian oak into the southern Asian boreal forest

Tang,

Du,

Guo

et al. 2023

Global Change Biology

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The migration of trees induced by climatic warming has been observed at many alpine treelines and boreal–tundra ecotones, but the migration of temperate trees into southern boreal forest remains less well documented. We conducted a field investigation across an ecotone of temperate and boreal forests in northern Greater Khingan Mountains of northeast China. Our analysis demonstrates that Mongolian oak (Quercus mongolica), an important temperate tree species, has migrated rapidly into southern boreal forest in synchrony with significant climatic warming over the past century. The average rate of migration is estimated to be 12.0 ± 1.0 km decade−1, being slightly slower than the movement of isotherms (14.7 ± 6.4 km decade−1). The migration rate of Mongolian oak is the highest observed among migratory temperate trees (average rate 4.0 ± 1.0 km decade−1) and significantly higher than the rates of tree migration at boreal–tundra ecotones (0.9 ± 0.4 km decade−1) and alpine treelines (0.004 ± 0.003 km decade−1). Compared with the coexisting dominant boreal tree species, Dahurian larch (Larix gmelinii), temperate Mongolian oak is observed to have significantly lower capacity for light acquisition, comparable water‐use efficiency but stronger capacity to utilize nutrients especially the most limiting nutrient, nitrogen. In the context of climatic warming, and in addition to a high seed dispersal capacity and potential thermal niche differences, the advantage of nutrient utilization, reflected by foliar elementomes and stable nitrogen isotope ratios, is also likely a key mechanism for Mongolian oak to coexist with Dahurian larch and facilitate its migration toward boreal forest. These findings highlight a rapid deborealization of southern Asian boreal forest in response to climatic warming.

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Marginal water use efficiencies of different plant functional types along an elevation gradient in subalpine regions

Zhai,

Wang,

et al. 2024

Eur J Forest Res

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Studies on forest ecosystem physiology: marginal water-use efficiency of a tropical, seasonal, evergreen forest in Thailand

Cited by 6 publications

References 26 publications

Bridging Drought Experiment and Modeling: Representing the Differential Sensitivities of Leaf Gas Exchange to Drought

Bridging Drought Experiment and Modeling: Representing the Differential Sensitivities of Leaf Gas Exchange to Drought

Rapid migration of Mongolian oak into the southern Asian boreal forest

Marginal water use efficiencies of different plant functional types along an elevation gradient in subalpine regions

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