Nitrate-Nitrogen, Land Use/Land Cover, and Soil Drainage Associations at Multiple Spatial Scales

2009 ◽  
Vol 38 (4) ◽  
pp. 1473-1482 ◽  
Author(s):  
William C. Floyd ◽  
Stephen H. Schoenholtz ◽  
Stephen M. Griffith ◽  
Parker J. Wigington ◽  
Jeffrey J. Steiner
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Nitrate Nitrogen ◽  
Spatial Scales ◽  
Land Use Land Cover ◽  
Soil Drainage ◽  
Multiple Spatial Scales

SPATIAL REPRESENTATION AND SPECIFICATION OF ECOSYSTEM SERVICES: A METHODOLOGY USING LAND USE/LAND COVER DATA AND STAKEHOLDER ENGAGEMENT

2012 ◽  
Vol 14 (01) ◽  
pp. 1250001 ◽  
Author(s):  
W. R. SHEATE ◽  
R. P. EALES ◽  
E. DALY ◽  
J. BAKER ◽  
A. MURDOCH ◽  
...  
Keyword(s):  
Land Use ◽  
Ecosystem Services ◽  
Land Cover ◽  
Green Infrastructure ◽  
Stakeholder Engagement ◽  
Spatial Scales ◽  
Physical Space ◽  
Evidence Base ◽  
Critical Element ◽  
Land Use Land Cover

The challenge for implementing an ecosystems approach to environmental decision-making processes, such as spatial planning, is to understand the range, nature and amount of ecosystem services currently provided and the potential for such service provision in the future. The ability to spatially represent ecosystems services is a critical element of the evidence base on which to make decisions about how physical space is used most effectively and sustainably, and the way people and activities are distributed at different spatial scales. This paper reports on the outcomes of a research project originally undertaken for the UK Department for the Environment, Food and Rural Affairs which developed a methodology for mapping ecosystem services using GIS and readily available, existing land use/land cover datasets. Critical components of the methodology, in order to determine which datasets are appropriate for which services, are network analysis and stakeholder engagement techniques, to define the relevant typology of ecosystem services and their relationship to land use/land cover types. The methodology was developed and tested successfully in the context of green grid (green infrastructure) networks in a major UK regeneration area, the Thames Gateway, to the east of London, and its potential use in impact assessment further explored through a number of case studies.

scholarly journals Analyzing the impacts of urbanization on runoff characteristics in Adama city, Ethiopia

2019 ◽  
Author(s):  
Dejene Tesema Bulti ◽  
Birhanu Girma
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Spatial Scales ◽  
Sustainable Growth ◽  
Sustainable Urban Development ◽  
Land Use Land Cover ◽  
Flood Hazards ◽  
Urban Centers ◽  
Spatiotemporal Changes ◽  
The City

Abstract Background It has been increasingly recognized that urbanization is responsible for alterations of land use/land cover globally with substantial environmental impacts on all temporal and spatial scales. Particularly, it significantly affects the hydrologic cycle. Floods are the major threats to several cities worldwide with more effects in developing countries. Likewise, urban water management has become the main focus of sustainable urban development and poses higher demand for information related to the interaction between the urbanization process and hydrological attributes, but little is known in the context of Ethiopian urban centers. For this, Adama city, a fast grown and flood vulnerable urban area is considered to examine the impacts of urbanization on the storm runoff at different spatial scales from 1995 to 2019. Preparing land use/land cover (LULC) maps for different periods, the dynamics of LULC transformations were analyzed. The SCS-CN method was used to compute runoff at respective years from which spatiotemporal changes of the city’s hydrology were assessed at the city and watershed levels. Regression analysis was used for exploring the relation between the spatiotemporal changes of imperviousness ratio and runoff.Results The findings show that the urban built-up area undergone about 22% expansion annually from 1995 to 2019. Besides the runoff is increased by 23% in the City and 31% and 16.6% in the watersheds. Moreover, the significant direct linear relationship is found between the spatiotemporal variations of runoff and imperviousness ratio at both spatial scales.Conclusions Adama city has experienced significant LULC transformations over the last 24 years with significant effects on hydrological attributes, which pressed an alarm for increasing flood hazards. Hence, in order to realize sustainable growth of the city, future developments should be guided by impervious surface-based land use regulations.

Impact of Urbanization on Land Use/Land Cover — Case Study: The Western Part of Khartoum State, Sudan

2017 ◽  
Vol 04 (03) ◽  
pp. 272-277
Author(s):  
Tawhida A. Yousif ◽  
Nancy I. Abdalla ◽  
El-Mugheira M. Ibrahim ◽  
Afraa M. E. Adam
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Use Land Cover ◽  
Impact Of Urbanization

Analysis of Land Use/Land Cover Change in Yangzhou City Based on CLUE-S Model

2011 ◽  
Vol 13 (5) ◽  
pp. 695-700
Author(s):  
Zhihua TANG ◽  
Xianlong ZHU ◽  
Cheng LI
Keyword(s):  
Land Use ◽  
Land Cover ◽  
Land Cover Change ◽  
Land Use Land Cover ◽  
S Model
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