نتایج جستجو برای: land settlement

تعداد نتایج: 133346  

2015
Van Butsic Audrey L. Mayer

Fire is a naturally occurring process of most terrestrial ecosystems as well as a tool for changing land use. Since the beginning of history humans have used fire as a mechanism for creating areas suitable for agriculture and settlement. As fires threaten human dominated landscapes, fire risk itself has become a driver of landscape change, impacting landscapes through land use regulations and f...

Journal: :journal of rangeland science 2012
jalal barkhordari trahel vardanian

classifying remote sensing imageries to obtain reliable and accurate landuse/cover (luc) information still remains a challenge that depends on many factors suchas complexity of landscape especially in arid region. the aim of this paper is to extractreliable luc information from land sat imageries of the pishkouh watershed of centralarid region, iran. the classical maximum likelihood classifier ...

The world is witnessing a dramatic shift of settlement pattern from rural to urban population, particularly in developing countries. The rapid Addis Ababa urbanization reflects this global phenomenon and the subsequent socio-economic and environmental impacts, are causing massive public uproar and political instability. The objective of this study was to use remotely sensed Landsat data to iden...

Journal: :پژوهش های جغرافیایی (منتشر نمی‏شود) 0
مجید رضایی بنفشه اسـتادیـار گروه جغرافیای طبیعی، دانشگاه تبریز هاشم رستم زاده دانشجوی دکتری جغرافیای طبیعی، دانشگاه تبریز بختیار فیضی زاده کارشناسی ارشد سنجش از دور و سیستم اطلاعات جغرافیایی

this research has been carried out with the aim of the determination of the land-use changes of the forests in the protected area of arasbaran. the determination of the changing points and the factors influencing these changes by the use of gis and remote sensing are the main aims of this research. accordingly, the satellite pictures pertaining to the years 1987 and 2005 along with other necess...

2011
Prafull Singh Shelendra Singh

Land use mapping is fundamental for assessment, managing and protection of natural resources of a region and the information on the existing land use is one of the prime pre-requisites for suggesting better use of terrain. Advances in satellite sensor and their analysis techniques are making remote sensing systems realistic and attractive for use in research and management of natural resources....

Parthenium hysterophorus, an invasive alien weed, is spreading rapidly across various land uses in Nepal. To understand how Parthenium is spreading across land uses at local scale, occurrence of this weed was recorded and its’ coverage in percent estimated along trails and road network at every 100 meter distance in Kirtipur Municipality of Kathmandu valley. In addition, vegetation sampling was...

2009
Lee J. Alston Edwyna Harris Bernardo Mueller Eric Alston Krister Andersson Lee Cronk Ernesto Dal Bó John Ferejohn Stephen Haber Thomas Mayer Henry Smith Ian Wills

We present a conceptual framework to better understand the interaction between settlement and the emergence of de facto property rights on frontiers prior to governments establishing and enforcing de jure property rights. In this framework, potential rents associated with more exclusivity drives “demand” for commons arrangements but demand is not a sufficient explanation; norms and politics mat...

Journal: :ISPRS Int. J. Geo-Information 2016
Martin Schorcht Tobias Krüger Gotthard Meinel

The implementation of sustainable land policies is in need of monitoring methods that go beyond a mere description of the proportion values of land use classes. The annual statistical surface area report on actual land utilization (German: “Bodenfläche nach Art der tatsächlichen Nutzung”), published by the statistical offices of the German federal states and the federation, provides information...

2008
Jim Bouldin

Aim I detail several problems and solutions related to estimating pre-settlement forest density from land surveyors’ bearing tree data. The data have a high value, so clarification of existing problems is needed in the development of a better theoretical framework in which to treat them. I focus on absolute density because it is the foundation for several other variables, e.g. basal area, timbe...

2011
Helena Freitas

During Earth's history, species extinction has probably been caused by modifications of the physical environment after impacts such as meteorites or volcanic activity. On the contrary, the actual extinction of species is mainly a result of human activities, namely any form of land use that causes the conversion of vast areas to settlement, agriculture, and forestry, resulting in habitat destruc...

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