منابع مشابه
economic impact of nutrient losses from wind erosion of cereal soils in southeast spain.
the influence of wind erosion on soil productivity was studied applying fan-forced wind in a wind tunnel located in the campo de nijar area in se spain where the main crops are cereals. wind erosion is highly variable depending on the type of soil (aric-haplic calcisols, aric-calcaric cambisols or aric-calcic luvisols, according to iuss working group wrb, 2014) and the time elapsed since the la...
متن کاملEvaporative losses of water by birds.
1. Birds lose water in evaporation from the respiratory tract and, in many species, through the skin. Anatomical arrangements in the nasal passages to conservation of water and hear from the expired air in the absence of heat loads. However, most species still expend more water in evaporation than they produce in metabolism when either quiescent or vigorously active. Certain small birds, severa...
متن کاملEffect of Integrated Water-Nutrient Management Strategies on Soil Erosion Mediated Nutrient Loss and Crop Productivity in Cabo Verde Drylands
Soil erosion, runoff and related nutrient losses are a big risk for soil fertility in Cabo Verde drylands. In 2012, field trials were conducted in two agro-ecological zones to evaluate the effects of selected techniques of soil-water management combined with organic amendments (T1: compost/manure + soil surfactant; T2: compost/animal or green manure + pigeon-pea hedges + soil surfactant; T3: co...
متن کاملCan Watercourse Groups Reduce Nutrient Losses?
Nutrient losses from agricultural land constitute an important part of the total flow of nutrient to lakes and seas in Sweden and the Baltic region. With the EU Directive on water, to be implemented shortly throughout Europe, the expectations on what can be achieved through the decentralisation of various responsibilities from authorities to groups in the civil society is increasing. An importa...
متن کاملNutrient Dynamics Controlled by Ground Water Injections
The influence of land-use mosaic among sub-watersheds on coastal processes apply globally to any coastal regions hugged by wetlands and underlain with limestone deposits. The existence of a subterranean flow connecting a tropical backwater to the Arabian Sea through the submerged porous lime shell is indicated from the coastal nutrient distribution. The present investigation represented a nonmu...
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ژورنال
عنوان ژورنال: Scientia Agricola
سال: 2003
ISSN: 0103-9016
DOI: 10.1590/s0103-90162003000300025