WETLAND AND WATER RESOURCE MODELING AND ASSESSMENT: A Watershed Perspective - Chapter 14 pptx

... 170 Wetland and Water Resource Modeling and Assessment 14. 3 RESULTS Actual land use in a 1-km buffer around each wetland was well represented by the estimated land use categories (Figure 14. 1); ... (for high-impact land categories such as urban and agricultural land), by 3 (for moderate land use impacts such as fallow pasture, park, and suburban residential), wherea...

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... is a data-intensive neural net model that predicts land use change at the level of 30-m pixels across the landscape. Neural-net “imagined” landscapes, coupled with a standard 20-year climate ... progress and techniques being employed in a collaborative risk assessment for the Muskegon River watershed, a large and valu- able tributary of Lake Michigan. Both watershed- based m...

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... The coastal wetlands only used a single-season late spring leaf-off image from mid-March. Prairie wetlands, forest wetlands, and ripar- ian wetlands utilized a two-season (leaf-off and peak phenological ... China, with many marshes, grass- lands, and alluvial oodplains in its watershed. The wetland area of Poyang Lake Basin has diverse ora and fauna and provides important...

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... informa- tion from the image by masking out the water bodies. Seven land cover types, includ- ing built-up area, wetland (with vegetation), grassland, forest, bare land, muddy beach, and farmland ... examining spectral characteris- tics, three groups of objects with spectral similarity were identied: (a) wetland and grassland/forest, (b) bare land and developing urban area, an...

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... (3.1) 22 Wetland and Water Resource Modeling and Assessment marsh vegetation and invasive species in fragmented coastal wetlands. Schmidt and Skidmore (2003), for example, examined and tested ... of wetlands and open water within the Meadowlands, and 12 km 2 of salt marsh vegetation including high marsh species Patens (Spartina patens) and Dis- tichlis (Distichlis...

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... and A is the total area of the Carex landscape. The fragmentation index of the Carex landscape in the Poyang Lake wetland area is 0.6041 (0 represents landscape that has not been depleted, and ... spectral library and the spectral angle map- ping approach, and (3) to assess the accuracy of the presented approach. © 2008 by Taylor & Francis Group, LLC 40 Wetland and Water...

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... inter- annual variation in climate and potential loss of groundwater reserves. A doubling of local populations around metropolitan areas will have a limited impact on interan- nual WASSI variability. ... by Taylor & Francis Group, LLC Degrees Celsius 44 Wetland and Water Resource Modeling and Assessment Communities need to accurately assess future water supply and d...

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... described the water problem including seasonal drought and water stor- age capacity in a red soil area. Wang et al. (1996) analyzed the variations in rainfall, evaporation, and water storage and supply ... 60 Wetland and Water Resource Modeling and Assessment have rarely been undertaken in the red soil areas of China. SWAT (Soil and Water Assessment Tool) (Arno...

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... impacts on groundwater recharge, soil moisture, and baseow. For- estation in wetland- dominated watersheds may have little effect on overall watershed hydrology since water balances (i.e., evapotranspiration) ... vegetated watersheds. The average annual precipitation was about 400 mm. Greater than 95% of precipitation evapotranspirated, and less than 5% precipitation became stream...

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... topographic index bins, and A i [L 2 ] is the fractional catchment area corresponding to each bin. 94 Wetland and Water Resource Modeling and Assessment 8.3.2 MODEL CALIBRATION AND VALIDATION The ... local unsaturated zone storage due to gravity drainage, and param- eter t d is a time constant. Vertical drainage that depletes the water in the subsurface storm ow zo...

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