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Selection of Hyperspectral Narrowbands (HNBs) and Composition of Hyperspectral Twoband Vegetation Indices (HVIs) for Biophysical Characterization and Discrimination of Crop Types Using Field Re ectance and Hyperion/EO-1 Data
The overarching goal of this study was to establish
optimal hyperspectral vegetation indices (HVIs) and hyperspectral
narrowbands (HNBs) that best characterize, classify, model,
and map the world’s main agricultural crops. ...
Vegetation dynamics under variable conditions in the famous sandy steppe of southern Tunisia
During last decades, the natural vegetation cover in
southern Tunisia, mainly dominated by dwarf and sparse
shrub, was continuously disturbed under various human
activities especially on sandy soil (easily eroded). ...
Replenishing depleted aquifers in arid areas (Tunisia)
This briefing describes preliminary work on a pilot project aimed at constructing recharge wells to replenish depleted aquifers. It is aimed at policymakers, donors, and other potential partners and supporters.
Regenerating rangelands in eastern Morocco
This brief is intended to inform potential beneficiaries, development and extension agencies (including nongovernmental organizations), and decision-makers and planners of the availability of this successful innovation for ...
Do faba bean (Vicia faba L.) accessions from environments with contrasting seasonal moisture availabilities differ in stomatal characteristics and related traits?
Drought is a major constraint to faba bean (Vicia faba L.) production, and there are many mechanisms by which leaves can regulate water loss. Our primary objective was to test if the origin of the faba bean accessions, ...
Role of geoinformatics in ensuing global food security with special reference to dryland agroecosystems
Agriculture plays an important role in providing
food security in developing countries. Better agricultural
information is one of the key factors in understanding current
trends and status that determine food security from ...
Assessing the risk of flooding in Central Tunisia
Digital elevation models (DEM) can be used to derive a wealth of information about land surface morphology. When analyzed using GIS information about stream channels and watersheds it can determine the flow of water over ...
Length of Growing Period over Africa: Variability and Trends from 30 Years of NDVI Time Series
The spatial distribution of crops and farming systems in Africa is determined by the duration of the period during which crop and livestock water requirements are met. The length of growing period (LGP) is normally assessed ...
Income, Education and Age effects on Meat and Fish Demand in Tunisia
Socio-economic and demographic variables can have a deep impact of the demand for food. The objective of this work is to analyze how these variables can affect the demand for meat and fish for Tunisian consumers. This study ...
Breeding faba bean for resistance to Ascochyta blight
Ascochyta blight (Didymella fabae Jellis and Punithalingam)
is one of the most important foliar diseases that
affect the quality and seed yield of faba bean (Vicia faba
L.) worldwide. Breeding for resistance to Ascochyta
blight ...