Results 71 to 80 of about 17,564 (297)

Evaluations and comparisons of rule-based and machine-learning-based methods to retrieve satellite-based vegetation phenology using MODIS and USA National Phenology Network data

open access: yesInternational Journal of Applied Earth Observations and Geoinformation, 2020
Vegetation phenology is a sensitive indicator that reflects the vegetation–atmosphere interactions and vegetation processes under global atmospheric changes.
Qinchuan Xin   +4 more
doaj   +1 more source

Post-fire vegetation phenology in Siberian burn scars [PDF]

open access: yes2007 IEEE International Geoscience and Remote Sensing Symposium, 2007
Boreal forests comprise one third of global forested area and are the largest terrestrial carbon store. Forest fires are the regions most dynamic disturbance factor, occurring mainly in Siberia, Russian Far East, Canada and Alaska, and these fires represent a globally important release of terrestrial carbon to the atmosphere, via the burning of ...
Heiko Balzter   +3 more
openaire   +3 more sources

Evaluating Reference Evapotranspiration (ETo) Calculation Methods and Quantifying Climate‐Driven Change in Irrigation Demand Across Nepal's Terai

open access: yesInternational Journal of Climatology, EarlyView.
Framework illustrating the comparison of different reference evapotranspiration (ETo) estimation methods and the integration of baseline ETo, crop water requirement (CWR), and irrigation water requirement (IWR) calculations with downscaled CMIP6 climate projections under SSP245 and SSP585 scenarios for the mid‐century and late‐century periods across ...
Umesh Kumar Sujakhu   +3 more
wiley   +1 more source

Hyperspectral Applications to Landscape Phenology

open access: yes, 2022
Phenology is the study of annual recurring biological life cycle events and the drivers and controls of their periodicity. Shifts in phenology depict a plant's integrated response to climate and environmental changes and have become an important source ...
Koedsin, W, Wu, J, Huete, A
core   +1 more source

Effects of deficit irrigation and biostimulants on melon productivity and quality in semi‐arid conditions

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Water scarcity and soil salinization are major constraints to irrigated agriculture in semi‐arid regions, affecting crop productivity and fruit quality. Combining deficit irrigation with biostimulant application has emerged as a promising strategy to improve water use efficiency and plant stress tolerance.
Jefferson dos Santos Gomes Calaça   +12 more
wiley   +1 more source

The Optimal Threshold and Vegetation Index Time Series for Retrieving Crop Phenology Based on a Modified Dynamic Threshold Method

open access: yes, 2019
Crop phenology is an important parameter for crop growth monitoring, yield prediction, and growth simulation. The dynamic threshold method is widely used to retrieve vegetation phenology from remotely sensed vegetation index time series.
Clement Atzberger   +4 more
core   +1 more source

The elephant underground: Belowground plant traits and their increasing importance in ecological studies

open access: yes
The Bulletin of the Ecological Society of America, EarlyView.
Jacqueline P. Ott   +3 more
wiley   +1 more source

Physiological dominance of the scion in shaping root architecture under suboptimal temperature

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract BACKGROUND Non‐optimal temperatures have become a major constraint on plant development under rapidly changing climatic conditions. Both suboptimal and supra‐optimal temperatures reduce physiological activity, alter plant morphology, lead to plant mortality, and ultimately decrease crop productivity.
Amnon Cochavi   +4 more
wiley   +1 more source

Embedded physical constraints in machine learning to enhance vegetation phenology prediction

open access: yesGIScience & Remote Sensing
Vegetation phenology plays a pivotal role in ecological processes on terrestrial surfaces and the interactions between the biosphere and atmospheric feedback. Current attempts to retrieve vegetation phenology have primarily depended on vegetation indices
Mengying Cao, Qihao Weng
doaj   +1 more source

Assessing plant water status: Part 2 – Non‐destructive and remote sensing approaches

open access: yesJournal of the Science of Food and Agriculture, EarlyView.
Abstract Precise, real time and non‐destructive assessment of plant water status is important for advancing plant physiological understanding, optimizing water usage, improving crop resilience and supporting precision agriculture in the face of increasingly variable climatic conditions.
Naila Farooq   +7 more
wiley   +1 more source

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