Results 101 to 110 of about 72,731 (267)

Crop Water Stress Index (CWSI) Estimation Using Modis Data

open access: yes, 2006
Crop Water Stress Index (CWSI) is an index which is used to explain the amount of crop water defisiency based on canopy surface temperature. Many researches of CWSI have been done for arranging irigation water system in several crops at different areas ...
Parwati Sofan, M.Rokhis Khomarudin
core  

Explainable, Uncertainty‐Aware Machine Learning for Maize Land Suitability and Climate Resilience in Lorestan Province, Western Iran

open access: yesLand Degradation &Development, EarlyView.
ABSTRACT Maize (Zea mays L.) is strategically important in Iran, yet its cultivation in the semi‐arid Zagros is constrained by limited and variable water, heat stress and heterogeneous soils, while conventional suitability assessments are deterministic, rarely validated spatially and provide no measure of confidence.
Ahad Madani, Narges Shafaei Bajestani
wiley   +1 more source

Assessing the relationship between shire winter crop yield and seasonal variability of the MODIS NDVI and EVI images [PDF]

open access: yes, 2007
Australian researchers have been developing robust yield estimation models, based mainly on the crop growth response to water availability during the crop season.
Potgieter, Andries B.   +2 more
core   +1 more source

Pastoralism and land degradation in Kazakhstan [PDF]

open access: yes
This thesis looks at the major factors, both environmental and institutional, which haye affected pastoralism in Kazakhstan throughout this century, concentrating in particular on the changes which have occurred since the end of the socialist period ...
Robinson, Sarah
core  

Characterising fine‐scale habitat associations for range expanding species with limited data: a case study on the West Nile Virus vector, Culex modestus

open access: yesOikos, EarlyView.
The ecological and epidemiological consequences of species expanding into new areas are growing concomitantly with climate change. Those aiming to monitor species expanding in range must make optimal use of finite resources to deliver effective surveillance capable of detecting new incursions and range expansions.
Susanna Cant   +9 more
wiley   +1 more source

تخمین عملکرد گندم آبی بوسیله تصاویر ماهواره لندست در برخی از مزارع شهرستان مشهد [PDF]

open access: yesPizhūhish/hā-yi tulīd-i giyāhī, 2014
یکی از روشهایی که اخیرا در کشور بمنظور پایش محصولات کشاورزی مورد استفاده قرار می¬گیرد، استفاده از تصاویر ماهواره¬ای می¬باشد. با هدف تخمین عملکرد مزارع گندم بوسیله تصاویر ماهواره لندست سنجنده TM و ETM+، 13 مزرعه گندم در دو سال 1388 و 1389 در شهرستان مشهد ...
نسرین صالح نیا   +4 more
doaj  

Índices de vegetação como parâmetro para delimitação de zonas de manejo [PDF]

open access: yes, 2015
TCC (graduação)- Universidade Federal de Santa Catarina. Campus Curitibanos. Agronomia.A aplicação de técnicas de agricultura de precisão (AP) no manejo da fertilidade do solo desperta o interesse de agricultores, consultores e empresas prestadoras de ...
Kuiawski, Amanda Carolina Marx Bacellar
core  

Mesoclimatic origin affects alpine plant germination but not its plasticity

open access: yesOikos, EarlyView.
Mountain ecosystems are disproportionately exposed to global warming, which may put alpine plant species in particular at risk. Plant species' migration and persistence depend on successful seed regeneration, with demographic traits such as germination being strongly sensitive to both present and ancestral climate.
Lukas Dietrichstein   +6 more
wiley   +1 more source

Optimizing Weed Control: A Study on the Influence of Drone Sprayer Altitude in Herbicide Application

open access: yesJurnal Keteknikan Pertanian Tropis dan Biosistem
This research aims to determine the spraying distance of herbicides using a drone sprayer to achieve effective weed control. The use of herbicides is crucial to managing the competition for plant nutrients that threaten crop yields.
Teuku Musrian   +2 more
doaj   +1 more source

Using Remotely Sensed Data to Explore Spatial and Temporal Relationships Between Photosynthetic Productivity of Vegetation and Malaria Transmission Intensities in Selected Parts of Africa [PDF]

open access: yes, 2011
Spatial and temporal variations in malaria transmission are naturally associated with prevailing climatic and environmental factors, for example rainfall, humidity, temperature and human activities.
Okumu, Fredros Oketch
core  

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