نتایج جستجو برای: various land

تعداد نتایج: 876799  

Journal: :journal of agricultural science and technology 2012
k. a. sultan f. ziadat

sustainable management of limited land and water resources is urgently needed to meet the increasing demand for food and to protect the environment. land suitability analysis is a prerequisite in assessing and proposing sustainable land use alternatives for an area. soil data are usually available at different levels of detail and stored in various forms, usually soil maps and/or soil observati...

2015
M. Arul vikram K. Murali

The key challenges to built public facilities and infrastructure towards sustainable development requires Governments to enhance the interests of the natural environment. In some regions the process of providing such services is the acquisition of appropriate land. For major projects, several locations could be suitable for such purposes and the Government may not be able to purchase the land. ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2004
Ronald R Rindfuss Stephen J Walsh B L Turner Jefferson Fox Vinod Mishra

Land-change science has emerged as a foundational element of global environment change and sustainability science. It seeks to understand the human and environment dynamics that give rise to changed land uses and covers, not only in terms of their type and magnitude but their location as well. This focus requires the integration of social, natural, and geographical information sciences. Each of...

2015
Bingkui Qiu Shasha Lu Yu Deng Ram Babu Singh

In this study, an inexact stochastic fuzzy programming (ISFP) model is proposed for land-use allocation (LUA) and environmental/ecological planning at a watershed level, where uncertainties associated with land-use parameters, benefit functions, and environmental/ecological requirements are described as discrete intervals, probabilities and fuzzy sets. In this model, an interval stochastic fuzz...

Journal: :Environmental management 2005
Jeffrey D Kline

Oregon's land-use planning program is often cited as an exemplary approach to forest and farmland conservation, but analyses of its effectiveness are limited. This article examines Oregon's land-use planning program using detailed spatial data describing building densities in western Oregon. An empirical model describes changes in building densities on forest and agricultural lands from 1974 to...

2014
John W. Coulston Gregory A. Reams David N. Wear Kenneth Brewer

Quantifying the amount of forest and change in the amount of forest are key to ensure that appropriate management practices and policies are in place to maintain the array of ecosystem services provided by forests. There are a range of analytical techniques and data available to estimate these forest parameters, however, not all ‘forest’ is the same and various components of change have been pr...

2002
Louis R. Iverson

The Illinois Geographic Information System was used to compare the soil and landscape attributes of the State with its historic vegetation, current land use, and patterns of land-use change over the past 160 years. Patch structural characteristics among land types in four geographic zones were also compared. The assessment of patch characteristics revealed a highly modified State with most land...

2014
Qizheng Mao Ganlin Huang Keming Ma Zexiang Sun

Understanding the spatial pattern of soil lead (Pb) levels is essential to protecting human health. Most previous studies have examined soil Pb distributions by either urbanization gradient or land-use type. Few studies, however, have examined both factors together. It remains unclear whether the impacts of land use on soil Pb levels are consistent along the urbanization gradient. To fill this ...

2012
Marian Weber Naomi Krogman Terry Antoniuk

Setting social, economic, and ecological objectives is ultimately a process of social choice informed by science. In this special feature we provide a multidisciplinary framework for the use of cumulative effects assessment in land use planning. Forest ecosystems are facing considerable challenges driven by population growth and increasing demands for resources. In a suite of case studies that ...

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