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Einfluss von Landmanagement-Methoden auf die Hydrologie und Sedimentfracht im Morogoro Einzugsgebiet, Uluguru Mountains (Tansania)

Description: Das Projekt "Einfluss von Landmanagement-Methoden auf die Hydrologie und Sedimentfracht im Morogoro Einzugsgebiet, Uluguru Mountains (Tansania)" wird vom Umweltbundesamt gefördert und von Technische Universität Dresden, Institut für Bodenkunde und Standortslehre, Professur für Standortslehre und Pflanzenernährung durchgeführt. The Uluguru Mountains constitute one of 13 mountain blocks which form part of the Eastern Arc Mountain chain and part of the East Africa's most important areas for human water supply. The forests of the Uluguru Mountains, serve as important catchment areas for the streams and rivers that provides water supply to the Dar es Salaam (the commercial capital of Tanzania) and Morogoro municipality. The Morogoro catchment is one of the sources of water for Morogoro. In order to ensure sustainable supply of ecosystem services, the ecosystem ought to be sustainably managed. The current situation indicates that the ability of Uluguru Mountains ecosystem to provide watershed services has potentially decreased. Land use change is claimed to be a major driver of change in water flow. Previous studies indicate that over the past 20-50 years there has been an increased conversion of forest land into agricultural land coupled with increased settlement and urbanization .Yet the agricultural land is not sustainably managed. The landscape is generally mountainous and cultivation is done on hilly slopes. Flat cultivation is largely practiced. The adoption of soil and water conservation practices by farmers is low which has led to an increasing trend of soil erosion thus reducing soil fertility as much of the nutrients are washed away. Moreover, the water quantity and quality downstream has been adversely affected. In light of such background, a research concept was formulated aiming at modeling the effect of soil and water conservation measures on water flow and sediment yield in Morogoro River Catchment, Tanzania. Specifically, the research work involves the following: (i) Examining adoption of soil and water conservation measures by farmers (ii) Analyzing soil physical and hydraulic properties for model parameterization and (iii) Simulating water flow and sediment yield under different land management scenarios. The modeling framework involves Soil and Water Assessment Tool (SWAT). This is a physically based semi-distributed hydrological model capable of simulating hydrological processes at watershed scale with a high level of spatial detail.

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SupportProgram

Origin: /Bund/UBA/UFORDAT

Tags: Landschaftspflege ? Dresden ? Gebirgsfluss ? Wohnung ? Fluss ? Flusssediment ? Nährstoff ? Rohwasser ? Erosion ? Tansania ? Waldfläche ? Bodendegradation ? Bodenfruchtbarkeit ? Bodenkunde ? Bodenwasser ? Landnutzungsänderung ? Hydraulik ? Nährstoffauswaschung ? Rohstoffknappheit ? Szenario ? Urbanisierung ? Ostafrika ? Bodenbewirtschaftung ? Wasserknappheit ? Alpines Ökosystem ? Pflanzenernährung ? Einzugsgebiet ? Studie ? Gewässerqualität ? Wasserströmung ? Wasserqualität ? Wasserspeicher ? Wasserversorgung ? Wirkungsforschung ? Berg ? Gewässerschutz ? Hügellandschaft ? Natürliche Ressourcen ? Nachhaltige Entwicklung ? Modellierung ? Energie ? Management ? Flächenmanagement ? Flächennutzung ? Bergwald ? Sedimentdynamik ? Nachhaltige Landnutzung ? Ökosystemleistung ? Sediment ? Ökosystem ? Wasserressourcen ? Umweltschutz ? Landwirtschaftliche Fläche ? Ressourcenbewirtschaftung ? Maßnahme ? Physikalischer Vorgang ? Ressourcenschonung ? Landwirtschaft ? Wasserscheide ? Hydrologie ? Gebirge ? Hang ? Umwelt ? Landschaftsnutzung ? Werkzeug ? Wassermenge ?

Region: Sachsen

Bounding box: 10.40664° .. 10.40664° x 49.29433° .. 49.29433°

License: cc-by-nc-nd/4.0

Language: Deutsch

Organisations

Time ranges: 2013-10-01 - 2017-06-30

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