Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning

Bibliographic Details
Main Author:	Mitsova-Boneva, Diana
Language:	English
Published:	University of Cincinnati / OhioLINK 2008
Subjects:	Urban Planning land cover change cellular automata TN loading model non-linear regression open space conservation network
Online Access:	http://rave.ohiolink.edu/etdc/view?acc_num=ucin1218830340

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spelling	ndltd-OhioLink-oai-etd.ohiolink.edu-ucin12188303402021-08-03T06:12:52Z Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning Mitsova-Boneva, Diana Urban Planning land cover change cellular automata TN loading model non-linear regression open space conservation network <p>The objective of this research is to assess the impact of future land cover changes on nutrient enrichment of streams. It applies cellular automata (CA) Markov chain model to simulate future land cover change and a GIS-based distributed cell-based model to predict non-point source nitrogen loadings to streams. The integration of the two models provides site-specific information on how the spatial location and extent of urban development can affect nitrogen pollution under dry, normal and wet conditions. </p><p>Two scenarios of land cover change, in particular, were examined. The baseline scenario (Scenario 1) involved only minor protection of environmentally sensitive areas. The open space conservation network scenario (Scenario 2) incorporated the principles of "green" infrastructure as outlined by the relevant literature. Scenario 2 was based on protection of riparian areas, floodplains, wetlands, urban open space, and areas with exceedingly shallow depth to seasonally high water table and bedrock. Increased setbacks, where appropriate, were considered. The impact of the projected land cover change under different development scenarios was then examined in terms of nitrogen delivery ratios, total loads and contributing areas. A spatial hydrological model of the watershed was developed under dry, normal and wet conditions. A non-linear regression model was applied to estimate nitrogen trapping efficiencies and delivery ratios based on field characteristics such as slope, saturated hydraulic conductivity, soil mean particle diameter, Manning's roughness coefficient and length of flow. An attenuation factor taking into account cost distance to streams and decay constant was also incorporated into the model to account for transmission losses. Contributing areas of nitrogen delivery to streams were delineated based on the model results.</p> 2008 English text University of Cincinnati / OhioLINK http://rave.ohiolink.edu/etdc/view?acc_num=ucin1218830340 http://rave.ohiolink.edu/etdc/view?acc_num=ucin1218830340 unrestricted This thesis or dissertation is protected by copyright: all rights reserved. It may not be copied or redistributed beyond the terms of applicable copyright laws.
collection	NDLTD
language	English
sources	NDLTD
topic	Urban Planning land cover change cellular automata TN loading model non-linear regression open space conservation network
spellingShingle	Urban Planning land cover change cellular automata TN loading model non-linear regression open space conservation network Mitsova-Boneva, Diana Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning
author	Mitsova-Boneva, Diana
author_facet	Mitsova-Boneva, Diana
author_sort	Mitsova-Boneva, Diana
title	Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning
title_short	Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning
title_full	Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning
title_fullStr	Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning
title_full_unstemmed	Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning
title_sort	modeling the impact of land cover change on non-point source nitrogen inputs to streams at a watershed level: implications for regional planning
publisher	University of Cincinnati / OhioLINK
publishDate	2008
url	http://rave.ohiolink.edu/etdc/view?acc_num=ucin1218830340
work_keys_str_mv	AT mitsovabonevadiana modelingtheimpactoflandcoverchangeonnonpointsourcenitrogeninputstostreamsatawatershedlevelimplicationsforregionalplanning
_version_	1719432868897226752

Modeling the Impact of Land Cover Change on Non-point Source Nitrogen Inputs to Streams at a Watershed Level: Implications for Regional Planning

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