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| Registros recuperados: 116 | |
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| Masija, E.H.. |
| Over 1,164,000 ha of wetland areas are listed as suitable for irrigation, mainly for cropproduction and livestock grazing. Existing and planned irrigation schemes are described forthe ,main river basins where large areas are devoted to rice and sugar cane. Emphasis' isplaced on the value of small scale, farmer-managed irrigation schemes and the rehabilitation of traditional systems. |
| Tipo: Working Paper |
Palavras-chave: Irrigation; Wetlands. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/528 |
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| Mihayo, J.M.. |
| This paper gives a brief discussion on water supply from wetlands in Tanzania. The majordrainage basins in Tanzania are described and the status and role of the Division of WaterResearch in the monitoring of water resources and data collection from wetlands and watersources are highlighted. The role of wetlands in the hydrological cycle, and the utilisation ofwetlands as water supply sources are discussed. The need for conservation and protection ofwetlands and other water sources is outlined. |
| Tipo: Working Paper |
Palavras-chave: Wetlands; Water supply. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/527 |
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| Mohammed, S.M.. |
| The coastal area of Tanzania (Fig. 1) encompasses a number of habitats that include coral reefs, mangroves, seagrass beds, sand banks, wetlands and beaches, among others. In addition to being essential linkages in the overall functioning of the coastal area, these coastal habitats support various resources both living and non-living. In addition, for generations the coastal area has provided life support to coastal communities where such activities as fisheries and related activities have played an important role in the social and economic development of local communities. In recent years, coastal tourism and mariculture have immerged as being potentially among most important economic activities nationally. The well being of these habitats and resources... |
| Tipo: Preprint |
Palavras-chave: Coral reefs; Mangroves; Seagrass; Wetlands; Beaches; Water quality; Pollution. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/183 |
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| Dia, I.M.. |
| La RBDS est un site d’importance biologique national, sous régional et mondial tant pour sa végétation, sa grande et moyenne faune, son avifaune, son ichtyofaune. Cette richesse lui confère une importance économique de premier plan (pêche, tourisme, agriculture, petite industrie, etc.). Dans cet article, il est question de faire une description de cet écosystème et de ses enjeux. |
| Tipo: Journal Contribution |
Palavras-chave: Wetlands; Aquatic birds; Mangroves; Wetlands; Aquatic birds; Mangroves; Http://aims.fao.org/aos/agrovoc/c_8371; Http://aims.fao.org/aos/agrovoc/c_8898; Http://aims.fao.org/aos/agrovoc/c_16190. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/2458 |
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| Mwanukuzi, P. P. K.. |
| Wetlands are dynamic landforms which vary in both time and space. Tanzania's wetlands areclassified according to the physiography and the environment in which they exist. Coastalwetlands, Rift System wetlands and the wetlands of highland drainage basins are the majorgroups. Coastal wetlands are formed by wave action and tidal influence; beaches and lagoons exist because of wave action; mudflats, marshes, mangrove swamps, estuaries and deltas aretidal in origin. Rift System wetlands occur in the rift depressions and are characterised by salt lakes, playas, swamps and short streams with inland drainage. The highlands are drained by long rivers originating in the inland catchments and ending in oceans or lake basins. On theway to their outlets, they form... |
| Tipo: Working Paper |
Palavras-chave: Wetlands. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/523 |
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| Mafabi, P.. |
| Uganda ratified the Ramsar Convention in 1988, and designated Lake George a Ramsar site. Located astride the equator, the lake and associated wetlands support a wide variety of biological resources. The reasons for this are varied, ranging from the good climate to shallow stratified waters (average 2.4m) which allow for a thorough mixing of the different layers, and a high alkalinity and photosynthetic activity. The status of Lake George is varied with most of the wetlands fringing the Lake being part of the Queen Elizabeth National Park. The open water of the lake is not part of the National Park and is managed by the Fisheries and Water Departments. This has had implications for management because of inter-sectoral inconsistencies. |
| Tipo: Other |
Palavras-chave: Wetlands. |
| Ano: 2000 |
URL: http://hdl.handle.net/1834/462 |
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| Griffin, M.; Kolberg, H.; Simmons, R.. |
| The ephemeral wetland system of central northern Namibia consists of the Etosha Pan, Lake Oponono and the Cuvelai inland delta/drainage. This is by far the largest wetland system in Namibia, covering some 30,000km2. The area can be subdivided into several distinct habitats, each with its distinguishing biodiversity. The Cuvelai drainage system is characterized by open, grassy drainage channels known as 'oshanas'. These are lined by the palm Hyphaene ventricosa and Colophospermum mopane trees dominate between the water courses. Adjoining to the south of this are the seasonally flooded grasslands on saline soils. Here the 'oshanas' converge into Lake Oponono via the Omuramba Etaka. Dominant grasses are Odyssea paucinervis, Sporobolus spicata and S. salsus,... |
| Tipo: Working Paper |
Palavras-chave: Wetlands. |
| Ano: 1997 |
URL: http://hdl.handle.net/1834/458 |
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| Manongi, E.J.. |
| The Rufiji River basin has wetlands with economic functions that require conservation; these functions have hitherto been taken for granted. Mismanagement of this basin wouldhave direct effects on these various functions and their values. The execution of largeprojects (e.g. hydropower and irrigation) may have effects which need to be evaluated.Coordinated planning and management at the river basin level is required for the sustainableutilisation of wetlands. To illustrate river basin planning, the catchment of the Rufiji River has been used as anexample in this paper. The Rufiji Basin (Figure 1) is the largest catchment basin in Tanzania, covering 177,420 km2, and has the highest potential for hydropower in Tanzania. |
| Tipo: Report |
Palavras-chave: River basin management; Wetlands. |
| Ano: 1995 |
URL: http://hdl.handle.net/1834/531 |
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| González López, C.A.. |
| Se estudió la biodiversidad vegetal acuática y palustre de la Laguna Coluco que forma parte de los Humedales del río Chepu (Chiloé, Chile). La hoya hidrográfica del río Chepu comprende la laguna Coluco y los tributarios de la cuenca: ríos Huentru, Negro, Puntra, Grande, Coluco, abarcando aproximadamente 100 km^2. Los muestreos de terreno se realizaron con la metodología fitosociológica de la Escuela Zürich – Montpellier. Con los censos de vegetación levantados a lo largo del transecto, se confeccionó una tabla fitosociológica inicial con 120 censos y 88 especies vegetales. Esta tabla fue ordenada con los métodos tradicionales, lográndose determinar las 16 asociaciones siguientes: Myriophylletum aquaticum, Potametum pectinatii, Juncetum bulbosii, Potametum... |
| Tipo: Theses and Dissertations |
Palavras-chave: Biodiversity; Community composition; Wetlands; Vegetation cover; Aquatic plants. |
| Ano: 2005 |
URL: http://hdl.handle.net/1834/4916 |
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| Harrill, J.C.. |
| The marine wetland habitat types of Tanzania are defined. The interactions between the ecosystems supporting these habitats are briefly described. The connections between these habitats demand a multi-sectoral approach to their management and the concept ofintegrated management, and its application to the marine wetlands of Mafia Island, ispresented. Guidelines for the legislation and administration of such areas are also presented. The problems of implementation of such a policy in Tanzania and the suitability of thisconcept to the management of terrestrial wetlands is discussed. The Ramsar Convention defines marine wetlands as those areas from the highest extent of the tide to six metres below lowest tide level. This definition of marine wetlands... |
| Tipo: Report |
Palavras-chave: Wetlands. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/533 |
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| Mpemba, E.B.. |
| The presence of wetlands in the various protected areas in Tanzania (national parks, gamereserves, controlled areas and the NgorongoroSpecial Conservation Area) is described. The value of tourism in wetlands and the problems of wildlife in wetlands is discussed.Recommendations for the management of wetlands in reserves emphasises the necessaryinvolvement of people who live adjacent tothese areas and are affected by management decisions. |
| Tipo: Working Paper |
Palavras-chave: Wetlands; Tourism; Wildlife; Http://aims.fao.org/aos/agrovoc/c_8389. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/526 |
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| Mwalyosi, R.B.B.. |
| The complex system of marine and freshwater ecosystems, and wetland resources, is describedfor the Rufiji Delta, an area of over 53,000 ha. Multiple resource use and the risk ofoverexploitation are mentioned together with the effects of upstream developments on the delta ecosystems. Possibilities for an integrated resource management system are outlined, including a zoning plan for utilisation of the mangroves. The Rufiji Delta covers 53,255 ha (Semesi, 1989) and forms part of the Rufiji River basin whichextends for some 177,000 km2 (RUB ADA, 1981a) (Figure 1). As a result of deposition of sediment carried by the Rufiji River towards the coast, the shoreline has shifted seaward andpresently protrudes some 15 km into the Mafia Channel. |
| Tipo: Report |
Palavras-chave: Wetlands. |
| Ano: 2002 |
URL: http://hdl.handle.net/1834/532 |
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| Nshubemuki, L.. |
| Forestry resources include land occupied by, or proclaimed to be forest; the produce found insuch land; and human resources capable of fostering the development of such resources. The following landscape units constitute Tanzania's wetlands: estuaries, open coasts, wetlands incoastal forests, floodplains, freshwater marshes, lakes, peatlands, swamp forests, and ground water forests. Wetlands are sources of food and forest produce, contain plants potentially suitable for agro-forestry and phyto-reclamation, reduce beach erosion, and arc sources of genetic material.Most wetlands face intensive utilisation pressure which endangers their continued existence. Given the multi-utility of wetlands and their diversity in structure, it is not possible to adopt... |
| Tipo: Working Paper |
Palavras-chave: Wetlands; Forestry; Http://aims.fao.org/aos/agrovoc/c_3055. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/524 |
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| Omari, C.K.. |
| The socio-economic aspects of wetland farming and fisheries' are discussed together with the cultural values of wetlands such as scenery, sources of traditional medicine, anddiseases. The socio-political features of wetland life are mentioned as well as theinternational considerations of wetland water needs. A plea is made for more research intoindigenous knowledge of wetland values and products. |
| Tipo: Book Section |
Palavras-chave: Wetlands; Socioeconomic aspects. |
| Ano: 1993 |
URL: http://hdl.handle.net/1834/988 |
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| Registros recuperados: 116 | |
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