نتایج جستجو برای: land destruction

تعداد نتایج: 153619  

2012
Sarah M. Eglington James W. Pearce-Higgins

Threats to biodiversity resulting from habitat destruction and deterioration have been documented for many species, whilst climate change is regarded as increasingly impacting upon species' distribution and abundance. However, few studies have disentangled the relative importance of these two drivers in causing recent population declines. We quantify the relative importance of both processes by...

Journal: :Computers, Environment and Urban Systems 2004
W. T. de Vries

Under the premise that land administration is one of the necessary components of sustainable development and better land management, this article reviews how progressive titling could foster new land administration procedures and associated information systems. This review is based on the objectives of progressive titling as they are developed or currently implemented in various regions in the ...

Journal: :مطالعات برنامه ریزی سکونتگاه های انسانی 0
رسول قربانی دانشیار گروه جغرافیا و برنامه ریزی شهری، دانشگاه تبریز، تبریز، ایران راضیه تیموری دانشجوی دکتری جغرافیا و برنامه ریزی شهری، دانشگاه تبریز، تبریز، ایران نعیمه ترکمن نیا دانشجوی دکتری جغرافیا و برنامه ریزی شهری، دانشگاه تبریز، تبریز، ایران علیرضا جدیدیان دانش آموخته کارشناسی ارشد جغرافیا و برنامه ریزی شهری، دانشگاه پردیس ارس

land use planning, refers to how to use, distribute and protect the land. this type of planning can be considered from different perspectives, such as sustainable development perspective view is one of important land use views. in this paper we have tried to study and evaluate the land use change of maragheh city from sustainable development perspective, and study the harmony or disharmony with...

2007
Yves Zenou

We propose a spatial search-matching model where both job creation and job destruction are endogenous. Workers are ex ante identical but not ex post since their job can be hit by a technological shock, which decreases their productivity. They reside in a city and commuting to the job center involves both pecuniary and time costs. Thus, workers with high wages are willing to live closer to jobs ...

1989
M S Mcglone

Polynesian settlement of New Zealand (c. 1000 yr B.P.) led directly to the extinction or reduction of much of the vertebrate fauna, destruction of half of the lowland and montane forests, and widespread soil erosion. The climate and natural vegetation changed over the same time but had negligible effects on the fauna compared with the impact of settlement. The most severe modification occurred ...

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Background: Public participation in decisions regarding natural resources is the easiest way to ‎preserve these resources. It seems that having human of conservation ethics of natural resources, ‎has affect on their participation in the preservation of natural resources. This survey research was ‎done to investigate the relationship between conservation ethics of natural resources and ‎particip...

2001
Gerald Nelson

3 A MODEL OF THE DETERMINANTS OF LAND USE 4 ECONOMETRIC TECHNIQUES 6

2006
H. M. Sulieman M. F. Buchroithner

There is a global increase in the recognition of environmental, social and economic values of native vegetation, particularly in terms of both sustainability of agricultural production and maintenance of natural resources. The rapid growth of the human population in Sudan (2.6 % per year) stimulated the evolution of mechanized agriculture in the Gedarif Area from 500 ha in the 1940s to about 2....

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