Results 41 to 50 of about 509 (137)

Atmospheric Feedbacks Reverse the Sensitivity of Modeled Photosynthesis to Stomatal Function

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 11, November 2025.
Abstract Stomata mediate fluxes of carbon and water between terrestrial plants and the atmosphere. These fluxes are governed by stomatal function and can be modulated in many Earth system models by an empirical parameter within the calculation of stomatal conductance, the stomatal slope g1M $\left({g}_{1M}\right)$.
Amy X. Liu, Claire M. Zarakas, Benjamin G. Buchovecky, Linnia R. Hawkins, Alana S. Cordak, Ashley E. Cornish, Marja Haagsma, Gabriel J. Kooperman, Chris J. Still, Charles D. Koven, Alexander J. Turner, David S. Battisti, James T. Randerson, Forrest M. Hoffman, Abigail L. S. Swann   +14 more
wiley   +1 more source

Investigating the Global Biogeophysical Impact of Area and Mass Based Wood Harvest in a Vegetation Demography Model

Journal of Advances in Modeling Earth Systems, Volume 17, Issue 10, October 2025.
Abstract Wood harvesting alters land surface properties and energy redistribution, but there is a lack of studies estimating these changes on a global scale. We coupled a vegetation demographic model, the Functionally Assembled Terrestrial Ecosystem Simulator, with the E3SM land model to perform offline model simulation to investigate the land ...
Shijie Shu, Alan Di Vittorio, Charles D. Koven, Maoyi Huang, Ryan G. Knox, Gregory Lemieux, Jennifer A. Holm   +6 more
wiley   +1 more source

Spatiotemporal patterns and driving factors for vegetation growth status in the upper reaches of the Yellow River

River, Volume 4, Issue 3, Page 311-329, August 2025.
This study developed the WEP‐CHC model, integrating vegetation growth dynamics into the hydrological WEP framework, to explore the spatiotemporal patterns and driving mechanisms of vegetation growth status (VGS) in the upper Yellow River. The results revealed significant spatiotemporal variability in VGS, with annual hydrothermal conditions and soil ...
Xiaolong Wang, Yongde Gan, Yangwen Jia, Ziqi Su, Jianhua Wang, Chenhui Ma, Zhaolin Zhang, Huan Liu   +7 more
wiley   +1 more source

Functional Analysis Approach to the Collatz Conjecture

Results in Mathematics
15 pages, introduction and section $4$ had been expanded and rewritten to connect with results of L.
openaire   +3 more sources

Evidence for Vegetation Acclimation to Atmospheric Dryness During European Droughts From a Land Surface Model

Global Biogeochemical Cycles, Volume 39, Issue 7, July 2025.
Abstract Accurately characterizing the response of Gross Primary Production (GPP) and plant transpiration to soil moisture stress is crucial for reliable climate simulations as we expect an increase in drought events. In this study, we used the ORCHIDEE land surface model to investigate how the physiological response of vegetation to soil moisture ...
Camille Abadie, Fabienne Maignan, Cédric Bacour, Philippe Peylin   +3 more
wiley   +1 more source

Contrasting Impacts of Acclimation and Adaptation of Photosynthetic Capacity to Temperature and CO2 Across Biomes

Global Biogeochemical Cycles, Volume 39, Issue 7, July 2025.
Abstract The response of photosynthesis to temperature and CO2 is poorly represented in land surface models, contributing uncertainty to estimates of the land carbon sink. We assess the sensitivity of carbon uptake to temperature adaptation and acclimation of photosynthetic capacity and CO2 acclimation of photosynthesis in the JULES model forced with ...
Rebecca J. Oliver, Lina M. Mercado, Belinda E. Medlyn, Phil P. Harris, Douglas B. Clark   +4 more
wiley   +1 more source

One Way Function Candidate based on the Collatz Problem

CoRR, 2018
The one way function based on the Collatz problem is proposed. It is based on the problem's conditional branching structure which is not considered as important even the 3x+1 question is quite famous. The analysis shows why the problem is mathematically so inaccessible and how the algorithm conditional branching structure can be used to construct one ...
openaire   +2 more sources

Inferring Plant Acclimation and Improving Model Generalizability With Differentiable Physics‐Informed Machine Learning of Photosynthesis

Journal of Geophysical Research: Biogeosciences, Volume 130, Issue 7, July 2025.
Abstract Net photosynthesis (AN) is a key component of the global carbon cycle influencing climate feedback over decadal scales. Although plant acclimation to environmental changes can modify AN, traditional vegetation models in Earth system models (ESMs) often rely on plant functional type (PFT)‐specific parameterizations or simplified acclimation ...
Doaa Aboelyazeed, Chonggang Xu, Lianhong Gu, Xiangzhong Luo, Jiangtao Liu, Kathryn Lawson, Chaopeng Shen   +6 more
wiley   +1 more source

LINEAR RANDOM NUMBER GENERATOR WITH COLLATZ TRANSFORMATION FUNCTION

Computer Design Systems. Theory and Practice
For the first time, a statistical model of a pseudo-random number generator (PRNG) with the Collatz transformation function is constructed and investigated in this paper. The PRNG is implemented in the Python statistical programming environment, and the function is obtained using the inverse transformation method. It is established that the probability
Bohdan Vasylyshyn, Petro Kosobutskyy
openaire   +2 more sources

Advancing Evapotranspiration Modeling With Optimized Soil and Canopy Resistance Combinations

Water Resources Research, Volume 61, Issue 6, June 2025.
Abstract Dual‐source remotely sensed evapotranspiration (ET) models require accurate separation of soil evaporation (Es), plant transpiration (Ec), and precipitation interception (Ei) based on soil and canopy resistances. Despite the availability of several ET products and algorithms, comprehensive evaluations of resistance configurations remain scarce.
Jinfeng Zhao, Shikun Sun, Yali Yin, Yihe Tang, Chong Li, Yongshan Liang, Yubao Wang, Alexander Winkler, Shijie Jiang   +8 more
wiley   +1 more source