نتایج جستجو برای: catchments loads ranked to five classes include very low
تعداد نتایج: 10952756 فیلتر نتایج به سال:
In this paper catchments are conceptualised as linear space-time filters. Catchment area A is interpreted as the spatial support and the catchment response time T is interpreted as the temporal support of the runoff measurements. These two supports are related by T∼A which embodies the space-time connections of the rainfall-runoff process from a geostatistical perspective. To test the framework...
The need for a consistent Statewide approach to the modelling of water and salt export across the Murray-Darling Basin has led to the conceptualisation of the 2CSalt model. The model was developed by State agencies and associated partners of the CRCCH and Murray-Darling Basin Commission. It provides consistent and transparent predictions of salt movement under current practice and is capable of...
Forests areas of Iran in comparison with the world is very low and this low area is in demolition threat always. Hence, the remainder of these forests should be managed based on ecological capability evaluation. With regard to importance of subject, ecological capability for forestry in the Sharui watershed, Khuzestan province, was evaluated in 2015. For this purpose, the Makhdoom model and AHP...
The archaeological database 4. GIS approaches to the archaeology of Hvar 5. GIS approaches to territorial boundary definition 6. Cairns and tumuli; agricultural clearance or ritual activity 6.1. Problems in the definition of stone cairns and tumuli 6.2.The analysis of stone cairns on the island of Hvar 7. Roman villas in the landscape 8. The Greeks on Hvar: optimal paths and visibility analysis...
Forest structure and species composition in many western U.S. coniferous forests have been altered through fire exclusion, past and ongoing harvesting practices, and livestock grazing over the 20th century. The effects of these activities have been most pronounced in seasonally dry, low and mid-elevation coniferous forests that once experienced frequent, low to moderate intensity, fire regimes....
In this paper, we apply an effective method to evaluate relative tectonic activity by applying several morph-tectonic indices that are useful in evaluating topography and tectonics. These include stream length-gradient, asymmetric factor, hypsometric index, curves, valley floor width height ratio, drainage basin shape, mountain front sinuosity. The study region of Wadi Al-Arish northern Sinai P...
Due to its potential adverse effects on freshwater acidification, risk assessments of the impacts of forest expansion on surface waters are required. The critical load methodology is the standard way of assessing these risks and the two most widely used models are the Steady-State Water Chemistry (SSWC) and First-order Acidity Balance (FAB) models. In the UK the recommended risk assessment proc...
one of the characters in iranian model of desertification potential assessment (imdpa) is soil. since soil is very important in the degradation of land, so some indices were determined for this character in order to evaluate desertification potential of arid, semi-arid and dry sub humid areas of iran. the indices included soil texture, deep gravel percentage, soil depth, and ec. to calibrate th...
one of the characters in iranian model of desertification potential assessment (imdpa) is soil. since soil is very important in the degradation of land, so some indices were determined for this character in order to evaluate desertification potential of arid, semi-arid and dry sub humid areas of iran. the indices included soil texture, deep gravel percentage, soil depth, and ec. to calibrate th...
Excess nutrients in surface waters, such as phosphorus (P) from agriculture, result in poor water quality, with adverse effects on ecological health and costs for remediation. However, understanding and prediction of P transfers in catchments have been limited by inadequate data and over-parameterised models with high uncertainty. We show that, with high temporal resolution data, we are able to...
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