Results 91 to 100 of about 21,602 (236)

Detection of Heat and Drought Effects on the Photosynthetic Activity Using Solar‐Induced Chlorophyll Fluorescence and a Photochemical Reflectance Index in a Cool‐Temperate Larch Forest in Japan

open access: yesEcological Research, Volume 41, Issue 3, May 2026.
Solar‐induced chlorophyll fluorescence (SIF) and gross primary productivity decline at midday during a short heatwave in a tower site of a larch forest. High atmospheric vapor pressure deficit significantly reduced the photochemical reflectance index (PRI), light‐use efficiency (LUE), and canopy fluorescence emission efficiency (εF).
Tomoki Morozumi   +4 more
wiley   +1 more source

Estimativa da evapotranspiração e coeficiente de cultivo da Heliconia bihai L., cultivada em ambiente protegido.

open access: yesOrnamental Horticulture, 2008
O trabalho foi desenvolvido em ambiente protegido, do tipo telado, no Campo Experimental do Curu, região litorânea do Estado do Ceará, e teve como objetivo estimar a evapotranspiração e os coeficientes de cultivo da Heliconia bihai L. empregando o método
Rubens Sonsol Gondim   +4 more
doaj   +1 more source

A Global Comparison of Direct and Legacy Effects of Drought on Ecosystem Productivity

open access: yesEcology Letters, Volume 29, Issue 5, May 2026.
We quantify the magnitude change in terrestrial gross primary production (GPP) globally in response to direct and long‐term (4 years) legacy effects of drought. We find that the direct effect causes significant GPP decreases in magnitude of −6% per year, while the legacy effect‐induced GPP change is overall weaker and non‐significant in the long run ...
Meng Liu   +3 more
wiley   +1 more source

Coeficiente de cultura da alface hidropônica baseado no conceito de graus-dia

open access: yesRevista Ceres, 2010
O objetivo principal deste trabalho foi propor a adoção de um coeficiente de cultura térmico, com a aplicação do conceito de graus-dia acumulados após o transplantio, para estimativa da evapotranspiração diária (ETc) dos cultivares de alface Grand Rapids,
Carlos Roberto Weide Moura   +3 more
doaj   +1 more source

Using the TIMS to estimate evapotranspiration from a forest [PDF]

open access: yes
The main goals were: (1) to characterize the evapotranspiration (Et) of two forested watersheds using direct measurement techniques, and (2) to evaluate if remotely sensed surface temperatures could be used to estimate Et from the same watersheds.
Teskey, Robert
core   +1 more source

Pemanfaatan Citra Penginderaan Jauh untuk Perhitungan Nilai Evapotranspirasi Berbasis Metode Kesetimbangan Energi di DAS Tanggul Kabupaten Jember [PDF]

open access: yes, 2017
Air merupakan hal yang paling penting didalam kehidupan manusia. Salah satu tahapan yang dilalui air dalam siklus hidrologi adalah proses evapotranspirasi.
S, S. H. (Sigit), Wijdani, A. F. (Ach)
core  

Comparison of several methods for calculation of reference evapotranspiration [PDF]

open access: yes, 2013
The knowledge of the evapotranspiration of natural ecosystems and plant populations is of fundamental importance in several branches of science, research and practical uses.
Dobos, Attila Csaba   +2 more
core   +1 more source

Evapotranspiration Everywhere, All the Time: Towards a Unified View From Earth Observation

open access: yesGlobal Change Biology, Volume 32, Issue 5, May 2026.
This paper discusses the evolution and revolution of Earth observation for evapotranspiration (ET), as we advanced from the first Landsat satellite and development of ET models through the progression of increasingly higher resolution across international space agencies and commercial industry with increasing ET model sophistication, cloud computing ...
Joshua B. Fisher   +6 more
wiley   +1 more source

An ensemble approach to assess hydrological models’ contribution to uncertainties in the analysis of climate change impact on water resources [PDF]

open access: yes, 2012
Over the recent years, several research efforts investigated the impact of climate change on water resources for different regions of the world. The projection of future river flows is affected by different sources of uncertainty in the hydro-climatic ...
Caya, D.   +9 more
core   +1 more source

Weighing the options: a test of alternative stomatal optimisation models at high temperatures

open access: yesNew Phytologist, Volume 250, Issue 3, Page 1551-1568, May 2026.
Summary Stomatal optimisation models centre upon a fundamental tradeoff for plants: opening stomata promotes carbon uptake, but closing stomata prevents water loss. However, stomatal opening can occur at high temperatures, causing evaporative cooling which limits thermal damage to leaves.
Camille K. Sicangco   +4 more
wiley   +1 more source

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