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Progress of vegetation modelling and future research prospects

Science China Earth Sciences 2024年第9期67卷 2718-2738页

作者： Siqi LI Xu ZHANG Zhengyao LU Jian NI Jianhua LU State Key Laboratory of Tibetan Plateau Earth System Resources and Environment (TPESRE)Institute of Tibetan Plateau ResearchChinese Academy of Sciences College of Resources and Environment University of Chinese Academy of Sciences British Antarctic Survey Department of Physical Geography and Ecosystem Science Lund University College of Life Sciences Zhejiang Normal University School of Atmospheric Sciences Sun Yat-sen University and Southern Marine Science and Engineering Guangdong Laboratory (Zhuhai)

Terrestrial vegetation is a crucial component of the Earth system, and its changes not only represent one of the most distinct aspects of climate change but also exert significant feedback within the climate system by exchanging energy, moisture,and carbon dioxide. To quantitatively and mechanistically study climate-vegetation feedback, numerical vegetation models have been developed on the theory of ecophysiological constraints on plant functional types. The models eventually can simulate vegetation distribution and succession across different spatial and temporal scales, and associated terrestrial carbon cycle processes by categorizing vegetation into biomes according different plant functional types and their associated environmental factors. Here we review the developing history of vegetation models and provide recent advances and future directions. Before 21st century, static vegetation models, as developed statistical models, can only simulate equilibrated characteristics of vegetation distribution. In last several decades, Dynamic Global Vegetation Models(DGVMs) have been developed to simulate instantaneous responses of vegetation to climate change and associated dynamics, and can be coupled with Earth system models to investigate interactions among atmosphere, ocean, and land. DGVMs are also widely applied to investigate the dynamics accounting for changes in the geographic distribution patterns of land surface vegetation at different spatial and temporal scales and to assess the impacts of terrestrial carbon and water fluxes and land use changes. We suggest that future vegetation modeling could integrate with machine learning, and explore vegetation transient response and feedback as well as impacts of process hierarchies and human activities on climate and ecosystem.

关键词： Vegetation models DGVMs Ecosystems plant functional types plant functional traits

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Thermal acclimation of leaf respiration varies between legume and non-legume herbaceous

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Journal of plant Ecology 2019年第3期12卷 498-506页

作者： Fei Peng Chang Gyo Jung Lifen Jiang Xian Xue Yiqi Luo Northwest Institute of Eco-Environment and Resources Chinese Academy of SciencesLanzhouGansu 730000China International Platform for Dryland Research and Education Arid Land Research CenterTottori University1390 HamasakaTottori 680-0001Japan College of Engineering Forestryand Natural SciencesNorthern Arizona UniversityFlagstaffAS 86011USA

Aims Ubiquitous thermal acclimation of leaf respiration could mitigate the respiration ***,whether species of different plant functional groups showing distinct or similar acclimation justifies the simple prediction of respiratory carbon(C)loss to a warming *** In this study,leaf dark respiration(Rd)of illinois bundleflower(IB,legume),stiff goldenrod(GR,C_(3) forbs),indian grass,little bluestem and king ranch bluestem(IG,LB and KB,C_(4) grass)were measured with detached leaves sampled in a 17-year warming *** Findings The results showed that Rd at 20℃ and 22℃(R_(20) and R_(22))were significantly lower in the warming treatment for all the five *** R_(22) in warmed than R_(20) in control in GR,KB,LB and IG imply acclimation homeostasis,but not in *** significant decline in temperature sensitivity of respiration(Q_(10))of GR resulted in the marginal reduction of Q_(10) across *** significant changes in Q_(10) of C_(4) grasses suggest different acclimation types for C_(3) forbs and C_(4) *** magnitude of acclimation positively correlated with leaf C/*** results suggest that non-legume species had a rela-tive high acclimation,although the acclimation type was different between C_(3) forbs and C_(4) grasses,and the legume species displayed no acclimation in ***,the plant functional types should be taken into account in the grassland ecosystem C models.

关键词： acclimation dark respiration warming legume plant functional types

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Mediterranean sea cliff plants:morphological and physiological responses to environmental conditions

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Journal of plant Ecology 2016年第2期9卷 153-164页

作者： Daniela Ciccarelli Piero Picciarelli Gianni Bedini Carlo Sorce Department of Biology University of PisaVia Luca Ghini 1356126 PisaItaly Department of Agriculture Food and Environment(DAFE)Via del Borghetto 8056124 PisaItaly

Aims The plants of Mediterranean sea cliff ecosystems are resistant to several environmental *** this study,six species typical of the coastal rocky cliffs have been analyzed in order to evaluate their diverse morphological and physiological responses to their environment across the seasons,and to examine the strategy of the ecological group to which each species *** these species are widespread across the Mediterranean region,our aim was also to highlight their ecophysiological features in habitats where the direct influence of the sea is *** The selected species are characteristic of the sea cliffs of Elba island(Tyrrhenian sea,Italy):the halophyte Crithmum maritimum,the semideciduous Helichrysum italicum and Lavandula stoechas and the sclerophylls Myrtus communis,Quercus ilex and Rhamnus *** morphological traits-canopy height,leaf area,specific leaf area and leaf dry matter content-and two physiological traits-leaf water potential(LWP)and photosynthetic efficiency(PE),measured before the dawn and at midday-were *** potential was measured by a pressure chamber and photosynthetic efficiency was determined by the analysis of chlorophyll *** performance was also evaluated by calculating chronic(PIchr)and dynamic photoinhibition(PIdyn).Important Findings Crithmum maritimum showed high resistance to the recurrent dry periods,because of the high water storage capacity of its leaves and its PE declined markedly only in July,under the harshest climatic *** taxa utilize primarily an avoidance strategy,which aims at reducing the overall leaf surface,while sclerophylls mostly show a tolerance strategy towards the prevailing stressors,as demonstrated by LWP and PE,that are lower in the sclerophylls than in the semideciduous taxa during summer,due to osmoregulation and photoinhibition,***,variability of physiological parameters was higher in the sclerophylls than in

关键词： leaf water potential phenotypic plasticity photosynthetic efficiency plant functional types

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Managing natural grasslands in a changing world:grazing ecology insights to accomplish reoriented management expectations

Managing natural grasslands in a changing world:grazing ecol...

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ⅩⅪ International Grassland Congress and the Ⅷ International Rangeland Congress

作者： Paulo C.de F.Carvalho Sila C.da Silva Carlos Nabinger Anibal de Moraes Teresa C.M.Genro plantas Forrageiras e Agrometeorologia-UFRGS.Av.Bento Goncalves 7712 CEP 91501-970 Porto Alegre-RSBrazil.Depto.

＜正＞Key points: *** is an increasing debate regarding the quality of pastoral *** than the production per se,a series of multifunctional responsibilities have been attributed to the pastoral ecosystems,that they always had,but have only became imperative as the world natural resources became threatened. *** quality of the use of a pastoral ecosystem can be interpreted through signals emitted by their biotic and abiotic

关键词： biodiversity ingestive behaviour plant functional types Brazilian Pampa sward structure

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