This work provides a description of the research conducted to assess methods for the discrimination between irrigated and rainfed open-tree canopies using advanced spaceborne thermal emission and reflection radiometer (ASTER) satellite imagery and discrete anisotropic radiative transfer (DART) radiative transfer 3D simulation model. Summer and winter ASTER images were acquired over a study area...

Irrigation is crucial to agriculture in arid and semi-arid areas and significantly contributes to crop development, food diversity and the sustainability of agro-ecosystems. For a specific crop, the separation of its irrigated and rainfed areas is difficult, because their phenology is similar and therefore less distinguishable, especially when there are phenology shifts due to various factors, ...

Rice-rice system and rice fallows are no longer productive in Southeast Asia. Crop and varietal diversification of the rice based cropping systems may improve the productivity and profitability of the systems. Diversification is also a viable option to mitigate the risk of climate change. In Eastern India, farmers cultivate rice during rainy season (June-September) and land leftovers fallow aft...

to evaluate land suitability of aq-qalla region for rainfed chickpea cropping, boolean logic and analytical hierarchy process (ahp) methods were used in geographic information system (gis). to achieve this, firstly, climatic and agronomical requirements of chickpea,were identified according to scientific resources. then, thematic requirement maps were provided. the studied environmental-compone...

introduction in recent years due to problems associated with intensive agricultural systems, the role of legumes in the sustainability of cropping systems has been accelerated (draper, 2006). currently, one of the challenges of energy intensive agricultural systems is monoculture, which is associated with low biological diversity (carmine, 2007). iran has been considered as the area with low ag...

Cropping among trees with perennial legumes is one option for increasing agro-ecosystem services, such as improving the nitrogen supply and soil protection by herbaceous vegetation. Moreover, cropping under canopy of olive should diversify farm production, compared to traditional fallow management. Among legumes, alfalfa (Medicago sativa L.) produces abundant biomass Mediterranean rainfed condi...

Soil fertility in smallholder farming areas is known to vary strongly on multiple scales. This study measures the sensitivity of the recorded satellite signal to on-farm soil fertility treatments applied to five crop types, and quantifies this fertilization effect with respect to within-field variation, between-field variation and field position in the catena. Plant growth was assessed in 5–6 p...