Annex ‘A’ to Form Th-1 National University of Sciences & Technology MASTER’S THESIS WORK 1. Name: Muhammad Shahid 2. Regn No.2011-NUST-ME-WRE-03 3. Department / Discipline: MS in Water Resources Engg: & Management 4. Institute:NICE 5. Thesis Topic: Evaluation of Development and Land use Change Impacts on Stream Flow and Sediment Yield in Margalla Hills Using Remote Sensing and GIS: Case Study of Rawal Dam and Simly Dam Watershed. 6. Brief Description/ Abstract:
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desertification‚ decreases in agricultural productivity due to land degradation‚ sedimentation of waterways‚ and ecological collapse due to loss of the nutrient rich upper soil layers. Wind and water erosion are now the two primary causes of land degradation. The most effective known method for erosion prevention is to increase vegetative cover on the land‚ which helps prevent both wind and water erosion.
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KENYATTA UNIVERSITY SCHOOL OF PURE AND APPLIED SCIENCES DEPARTMENT OF GEOGRAPHY STUDY ON INFILTRATION AND SOIL TEXTURE UNDER BANANA AND MAIZE LAND USE SYSTEMS IN GATUNDU CATCHMENT‚ KIAMBU COUNTY‚KENYA KAKAIRE JOEL I56EA/20023/2012 ICEDUNA MARION I56EA/20021/2012 MWM714: FIELD MAPPING AND LABORATORY TECHQNIUES FIELD REPORT COURSE INSTRUCTOR: DR. MAKOKHA GEORGE TABLE OF CONTENTS CONTENTS PAGES 1.0 Introduction ...............................................................
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basis. Watersheds have an infinite variety of shapes‚ and the shape supposedly reflects the way that runoff will “bunch up” at the outlet. A circular watershed would result in runoff from various parts of the watershed reaching the outlet at the same time. An elliptical watershed having the outlet at one end of the major axis and having the same area as the circular watershed would cause the runoff to be spread out over time‚ thus producing a smaller flood peak than that of the circular watershed
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Candidate Name: Shanell McKay Subject: Agricultural Science (Single Award) School: Clarendon College Location: Clarendon College Tutorial Farm Duration: 26\9\11 – 16\10\11 Schedule of operations 1) Poultry House Preparation: a. Removal of old litter b. Cob-webbing of poultry house c. Poultry house sanitation d. Hanging of tarpaulin 2) Setting-up of brooding area: a. Installing light source b. Spreading new litter & newspaper c. Placing of waterers and
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rainfall on a bare soil can compact the upper layer of soil‚ creating a hard crust that inhibits plant establishment. Sheet erosion occurs as runoff travels over the ground‚ picking up and transporting the particles dislodged by raindrop impacts. The process of sheet erosion is uniform‚ gradual and difficult to detect until it develops into rill erosion. If runoff is maintained as sheet flow‚ the velocity remains low and there The method used to prevent erosion from raindrop splash and sheet erosion
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Nonpoint source pollution is land runoff from drainage‚ rain‚ and seepage and hydraulic modification. It is caused by rain or snow melt that moves through and over the ground. When the runoff moves‚ it collects and picks up manmade and natural pollutants and ends up spilling into lakes‚ rivers‚ streams‚ and coastal waters. Nonpoint source pollution can include things like motor oil‚ toxic chemicals‚ animal droppings‚ trash and even insecticides. Our drinking water needs to be protected. It takes
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the soil by monoculture and left the soil bare after harvesting. Soil erosion is a problem of the developed world as well as the developing TYPES OF SOIL EROSION Water erosion Water erosion causes two sets of problems: * An on-site loss of agricultural potential * An off-site effect of downstream movement of sediment‚ causing flooding and the silting up of reservoirs. Sheet erosion * Soil erosion is
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Soil conservation includes all such measures which protect the soil from erosion and restore its fertility. These measures are of two types-(a) small measures to check soil erosion at local or even individual level‚ and (b) large measures at government level involving larger area and heavy investment. (a) Small Measures-These include afforestation‚ regularised land strip cultivation or contour farming or terrace farming in hilly areas‚ use of stubble mulch system‚ increasing cohesiveness of the
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increase accuracy in simulating surface runoff values‚ penetration and time variations are important in this part of the model. Different conditions of fractures are shown in Figure 4 with respect to soil moisture variations. By entering the Bypass Flow in the model‚ SWAT calculates the seam volume for the soil matrix per day for each layer. the influence and runoff are initially calculated using the SCS or Green Empty method On days when precipitation occurs. If a runoff is formed‚ it is allowed to enter
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