Results 11 to 20 of about 62,630 (265)
Modeling Institutions in Socio-Ecosystems [PDF]
Proceedings of the Thirtieth International Joint Conference on Artificial Intelligence, 2021 In socio-ecosystems, human activities are structured in time and space by interactions between different regulatory systems with different collective goals. These regulatory systems are modeled by institutions and organizations, and the regulatory mechanisms by norms applied to agents in Multi-Agent Systems (MAS).
Raharivelo, Sitraka Oliva +1 more
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The empirical modeling of an ecosystem [PDF]
Ecological Modelling, 1978 Abstract The authors have endeavored to create a verified a-posteriori model of a planktonic ecosystem. Verification of an empirically derived set of first-order, quadratic differential equations proved elusive due to the sensitivity of the model system to changes in initial conditions. Efforts to verify a similarly derived set of linear differential
Ulanowicz, Robert E. +3 more
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Environmental Modelling & Software, 2004 The Library of Hydro-Ecological Modules (LHEM, http://giee.uvm.edu/LHEM) was designed to create flexible landscape model structures that can be easily modified and extended to suit the requirements of a variety of goals and case studies. The LHEM includes modules that simulate hydrologic processes, nutrient cycling, vegetation growth, decomposition ...
Alexey A. Voinov +3 more
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Scientific Reports, 2021 Leaf water content (LWC) has important physiological and ecological significance for plant growth. However, it is still unclear how LWC varies over large spatial scale and with plant adaptation strategies.
Ruomeng Wang +4 more
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Modelling an ecosystem: The example of agro-ecosystems
Ecological Modelling, 2011 Abstract Methods to predict ecosystem responses to changing environmental conditions, including options for mitigation and management, are vital for scientists and policy makers. We propose that modelling ecosystems by grouping species into trophic-functional types has great utility, because it is potentially generic and applicable to any ecosystem ...
Caron-Lormier, G. +5 more
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Dynamic Threshold of Carbon Phenology in Two Cold Temperate Grasslands in China
Remote Sensing, 2021 Plant phenology, especially the timing of the start and the end of the vegetation growing season (SOS and EOS), plays a major role in grassland ecosystem carbon cycles.
Lingling Xu +3 more
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Aboveground biomass estimation at different scales for subtropical forests in China
Botanical Studies, 2017 Background The accurate estimation of forest biomass at different scales is the critical step in the assessment of forest carbon stocks. We used three models at increasing scales: allometric model at ecoregional scale (model 1), dummy variable allometric
Shunlei Peng +3 more
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Remote Sensing, 2014 Temperature and water conditions affect vegetation growth dynamics and associated spectral measures. We examined the response of the growing season maximum enhanced vegetation index (MEVI) to the growing season temperature, precipitation, vapor pressure ...
Zhenxi Shen +4 more
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The Scientific World Journal, 2014 Although alpine meadows of Tibet are expected to be strongly affected by climatic warming, it remains unclear how soil organic C (SOC), total N (TN), ammonium N (NH4+-N) , nitrate N (NO3+-N), and dissolved organic C (DOC) and N (DON) respond to warming ...
Cheng-Qun Yu +4 more
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Nonlinear response of ecosystem respiration to multiple levels of temperature increases
Ecology and Evolution, 2019 Global warming exerts profound impacts on terrestrial carbon cycles and feedback to climates. Ecosystem respiration (ER) is one of the main components of biosphere CO2 fluxes. However, knowledge regarding how ER responds to warming is still lacking.
Ning Chen +6 more
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