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Land Use and Land Cover Change (LULC) in the Lake Malawi Drainage Basin, 1982-2005  [PDF]
Geoffrey Chavula, Patrick Brezonik, Marvin Bauer
International Journal of Geosciences (IJG) , 2011, DOI: 10.4236/ijg.2011.22018
Abstract: Changes in land use and land cover (LULC) in the drainage basin of Lake Malawi over the period 1982-2005 were estimated from satellite imagery, and possible relationships were evaluated among the four major land-cover classes: cropland, forest, water, and savanna/shrub/woodland. AVHRR and MODIS sensors gave different values of areal extent of the four classes, limiting the feasibility of establishing consistent temporal trends over the entire period of the study, but forest land showed the least change among three land cover types, and extent of water bodies remained virtually unaltered over the period. AVHRR results show that cropland was mainly derived from savanna/shrub/woodland, which declined by almost 90% over the period 1982-1995.
Reforestation and land use change in a drainage basin of southern Italy
D’Ippolito A,Ferrari E,Iovino F,Nicolaci A
iForest : Biogeosciences and Forestry , 2013, DOI: 10.3832/ifor0741-006
Abstract: In this study, the land use change in a large basin of Calabria region (southern Italy) subjected to extensive reforestation at the end of the ’ 50 has been carefully reconstructed and compared with the current situation. The runoff capacity of the basin was estimated using data available for the temporal periods before and after the reforestation interventions. The results show that the surface of the basin interested by former reforestation activities did not affect the runoff, probably due to a trade-off between the effects of reforestation and a concurrent increase in urbanized and degraded areas. Indeed, the hydrological response is linked to structural complexity of reforested areas, currently at an early stage of development that can be further promoted through forest management activities.

Shi Hua,

资源科学 , 1995,
Abstract: and use program is a concrete measure adopted by man to deal with comprehensive Land system. Analyses of present situation of Land use and its potential, and water-Land resources balance demonstrate that the land use in Tarim Drainage Basin is unreasonable, potential of land exploitation is great, water-land resources are imbalance,and water is a key factor restricting the exploitation and utilization of land resources. It is therefore imperative to develop water-saving agriculture. The future land demands in the drainage basin will be increased with the increase of population, socio--economic development and petroleum resourcesexploitation. planning scheme for land use must be formulated on the basis of overall balance of total supply and demand.
Liviu Apostol,Ovidiu-Miron Machidon
Present Environment and Sustainable Development , 2011,
Abstract: Being a the climatic element which, together with the air temperature, leaves its mark on the general geographic landscape, atmospheric precipitation have a great practical importance in various economic sectors such as agriculture,silviculture, transportation, construction, tourism, land planning and management etc. Large quantities of precipitation fallen in small intervals of time are often the cause of overflows, floods, excess of moisture in lowlands, erosion acceleration of the sloping agricultural lands, destruction of homes and elements of infrastructure, wild and domestic animals victims and human casualties. The paper is based on data relating to atmospheric precipitation, measured at the six weather stations located in the Barlad drainage basin.
Estimation of erosion and sediment yield of Ekbatan Dam drainage basin with EPM, using GIS
S. Amini,B. Rafiei,S. Khodabakhsh,M. Heydari
Iranian Journal of Earth Sciences , 2010,
Abstract: Soil conservation and control of erosion is a basic problem in all countries. The goal of this research is to estimate erosion and sediment yield in Ekbatan Dam drainage basin by Erosion Potential Method (EPM), using Geographic Information System (GIS). The basin is located in Hamedan Province, west of Iran, in a cold and semi- arid region, with an average annual rainfall of 334mm. The study area is about 218 km2 and is divided into 8 sub- basins. Sub- basins 1 and 6 are the largest (49.14 km2), and smallest (9.92km2), respectively. Elevation ranges between 1960 to 3580 m. The litho-units include schist, granite, hornfels, limestone, sandstone, (Pre- Jurassic to Neogene in age), conglomerate, and recent alluvium. Most sediment in the basin is generated from erosion of schist. The main factors in the EPM (slope average percent, erosion, rock and soil erosion and land- use) were evaluated using GIS software. Data layers used in this study were created from topographic, homorain, homotemp, geology, lithology maps, landsat TM digital images, and field observations. According to calculated results, the coefficient of erosion and sediment yield (z) for this basin fall into moderate and heavy erosion classes. For avoiding soil erosion in this basin, therefore, soil conservation operations should be performed.
Emre ?Z?AH?N
Turkish Studies , 2010,
Abstract: Iskenderun this study temporal variation of land cover in the drainage basin (1985-2007) Remote Sensing and Geographical Information Systems and examined the causes and consequences of changes were evaluated with a geographical perspective. Residential areas in the basin area occupied by the expansion of agricultural areas, agricultural fields or forest areas have been invaded in the last 20-30 years, the land cover change. This negative change of land cover in the study area, should be evaluated promptly and handled under a plan and a more sustainable land use model should be developed. Bu al mada skenderun Aka lama Havzas ndaki arazi rtüsünün zamansal de i imi (1985-2007) Uzaktan Alg lama ve Co rafi Bilgi Sistemleri ile incelenmi , de i imin nedenleri ve sonu lar co rafi bir bak a s yla de erlendirilmi tir. Havza alan nda yerle im alanlar n n tar m alanlar n i gal ederek geni lemesi, tar m alanlar n n da orman alanlar n istila etmesi son 20-30 y lda ya anm olan arazi rtüsü de i imidir. nceleme alan ndaki arazi rtüsünün bu olumsuz de i imi, derhal bir plan kapsamda ele al n p de erlendirilmeli ve daha sürdürülebilir bir arazi kullan m modeli geli tirilmelidir.
Integrated Management of Water Resources and Land Use in Urban- Metropolitan Basins: Flood Control in the Igua u-Sarapuí River Basin (Rio De Janeiro, Brazil)
Resources and Environment , 2012, DOI: 10.5923/j.re.20120202.09
Abstract: This research concerns the integration of urban land use planning to water resources management, focusing on flood control. A case study regarding the Igua u-Sarapuí River Basin, located in the western portion of the Guanabara Bay Basin, which lies in the Metropolitan Region of Rio de Janeiro is discussed. This is one of the most critical areas in the state regarding urban flooding. This region is densely occupied and presents great urban and industrial development areas, as well as wide rural zones in an urbanising process, and reminiscent areas of natural vegetation on the upstream reaches of the basin. This case study intends to illustrate and to show how complex the interaction of urban drainage problems and the city growth can be in a context of an unplanned and non-integrated reality. In this region, urban expansion dynamics is, in general, marked by irregular occupation, in terms of land tenure and urban regularisation, and lack of sanitation. This creates a cycle difficult to treat: the urbanization without proper control compromises the drainage system which, in turn, fails and affects the urban environment, degrading it and creating situations of risk and losses. This paper aims at elucidating the challenges and perspectives to water resources management in densely urbanized basins in Brazil.
Aerul ?i Apa : Componente ale Mediului , 2012,
Abstract: The water supply of the localities in the Ili ua drainage basin. The way in which the water is supplied to a locality represents a relevant indicator in assessing the quality of life and the economic development. The existence of a well developed water supply system is all the more necessary as the spatial-temporal distribution of the rainfall undergoes an enhancement of variation together with the increase of water requirement.The 27 localities located in the drainage basin, with a population of more than 13,000 inhabitants, engaged mostly in primary activities need a water supply system with a quality source and a sufficient flow to induce an actual immunity in the context of present climate changes. In order to achieve this goal, one has to consider calculating the water requirement, analyzing the territory natural component in order to make possible the identification of the water supply sources and of the water uses territorial distribution.
Watershed Characteristics and Their Implication for Hydrologic Response in the Upper Sokoto Basin, Nigeria  [cached]
Ifabiyi Ifatokun Paul,Eniolorunda Nathaniel Bayode
Journal of Geography and Geology , 2012, DOI: 10.5539/jgg.v4n2p147
Abstract: Most African river basins lack flow data, a condition which has affected river basin operations. Flood is a common occurrence on the Sokoto basin but poor data base has affected various research efforts and flood mitigation attempts in the basin. This present study will study basin variables using a GIS approach with a few to gaining insights to the flood potentials of Sokoto basin. Shuttle Radar Topographic Mission (SRTM) image covering 5o-7o E and 12 o to 14oN was used in this study. The analysis was carried out using the Integrated Land and Water Information System (ILWIS) and ArcGIS environments. Sinks were removed from the STRM, and the flow direction map was generated as an input for drainage extraction, river ordering and basin catchment extraction. Drainage network overlay was carried out on the generated hill-shade map and on a portion of SPOT image covering the Upper Sokoto catchment for visual analysis. Altogether, 44 basin variables were generated with a view to appraising flood and water resource management in the basin. The results showed that the Upper Sokoto basin is an alluvial catchment; located in a relatively low lying area where high level of deposition is experienced. It is sinuous in nature, circular in shape and compact. These characteristics coupled with the relatively high volume of precipitated water of 14,511,439,620 m3/year are indications that the basin has high flood potential. The paper recommends construction of levees to protect farmlands, efficient reservoir operation and sustainable watershed management for the purpose of environmental management in the Sokoto basin.
The influence of the geomorphological factors on the relief modelling within Eselnita hydrographic basin (Danube catchment/Romania)
Cinq Continents , 2012,
Abstract: Developed on the south-eastern side of Alm jului Mountains, E elni adrainage basin neighbours upon the following basins: upon S – SV with Mala, upon SV - V with Mraconia, upon V – NV with Berzasca, upon NV - NNE with Nera and on the NNE – SE direction with Cerna. The basin has a surface of 77 km2 and present a 5th degree hydrographic network according to Horton-Strahler ranking system, tributary to Danube by means of E elni a main collector. Developed in a mountain landscape, the basin presents different levels held between minimum altitude of 64 m at the confluence with the Danube and maximum altitude of 1107 m, thus presenting a difference of 1043 m. Geological formationswithin the basin belong predominant to the Danubian Domain, so in central and upper courses, these are represented by a crystalline foundation and by magmatic rocks of intrusive nature covered by very small areas of sediment located in the northwest (belong to the LowerJurassic) and in the south-eastern (belongs to the Upper Cretaceous) of the basin. But in the lower course, there are both crystalline and the sedimentary formations, last being integrated to Or ova depression and whose presence is related to the evolution of the Danube. Morphometric indices of E elni a basin allows the distinction of a higher sector, mountainous terrain with high energy under a relatively increased fragmentation and depression sector with low relief energy and also with an intense fragmentation of the existing sedimentaryrocks wich favors erosion manifestation in the context of deforestation action.

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