نتایج جستجو برای: pasture land

تعداد نتایج: 124794  

2003
Eric F. Lambin Helmut J. Geist Erika Lepers

■ Abstract We highlight the complexity of land-use/cover change and propose a framework for a more general understanding of the issue, with emphasis on tropical regions. The review summarizes recent estimates on changes in cropland, agricultural intensification, tropical deforestation, pasture expansion, and urbanization and identifies the still unmeasured land-cover changes. Climate-driven lan...

2002
Zhang Fengrong Wang Lixin Li Chao

YiJinHuoLuo Banner is a county of Inner Mongolia with obvious semiarid monsoon climate. Because of unsuitable land use, such as cultivating marginal land and over pasture, desertification was getting severer and severer before 1974. Since 1974, People have been doing their best to grow woods, shrubs and grasses for increasing the coverage of vegetation. People have taken suitable and available ...

2016

Researchers are increasingly interested in understanding the impact of contentious social processes on land change. In the Brazilian Amazon, there are often contentious interactions between landholders defending private property rights and squatters who have the right to occupy land that is deemed unproductive. Previous studies suggest that the contentious social processes inherent in the Brazi...

Journal: :iranian journal of applied animal science 2015
o.s. adedeji t.k. ogunsina a.o. akinwumi s.a. ameen o.o. ojebiyi

this paper considers the potential problems that may militate against the adoption of organic poultry production in nigeria. factors identified include: higher risk of diseases like coccidiosis and newcastle disease, disease prevention and control / herd health management, disease containment in times of outbreak, land acquisition (land tenure system), market economies / cost-benefit ratio, pas...

2015
Chunzeng Wang Jason Johnston David Vail Jared Dickinson Jane Southworth

High-precision land-cover-land-use GIS mapping was performed in four major townships in Maine’s Aroostook River Valley, using on-screen digitization and direct interpretation of very high spatial resolution satellite multispectral imagery (15–60 cm) and high spatial resolution LiDAR data (2 m) and the field mapping method. The project not only provides the first-ever high-precision land-use map...

Journal: :Gazi Üniversitesi Orman Fakültesi dergisi 2021

Aim of study: this study was to conduct a habitat connectivity analysis using centrality metrics protect the regional wildlife-habitat connections Siirt landscape, and ensure continuity ecological flows in landscape.
 Area Increasing urbanisation trend recent years human impact on natural resources cause diversity landscape be negatively affected. Centrality were sampled terms re-establish...

Journal: :IJAEIS 2013
Ana Paula Dias Turetta Rachel Bardy Prado Gustavo de Souza Valladares

The landscapes are highly dependent on the dynamics of local land use and land cover, which directly affects landscape structure and determines the spatial patterns of forest patches, as well as to the major land uses within a specific region. The calculation of landscape metrics can support the understanding of such spatial distribution. In this study, 16 landscape metrics were analyzed in a d...

Journal: :Bioresource technology 2013
Mitra Kami Delivand Edgard Gnansounou

The availability of about 18 million hectares of grassland in Pará State, Brazil, and the possibility of increasing the livestock density display a good perspective for the oil palm expansion in pasture land. A life cycle assessment is performed for a prospective palm-based biorefinery to view two regional and one global environmental impact and the consequences of the land-use change in terms ...

2002
Marco Boscolo Ramiro Molina Robert Wade Elinor Ostrom Daniel Bromley

In rural areas of developing countries, farming systems tend to be household-based. These household production systems are also highly integrated with land-based natural resources such as forests, range areas and pasture lands. Households depend on these resources for fuels, animal food, building materials, fruits and medicines, and often these resources have ownership and control structures th...

Journal: :مرتع و آبخیزداری 0
سعیده حیدری کارشناس ارشد مرتع داری دانشگاه تهران علی اکبر مهرابی استاد گروه دانشکدة کشاورزی و منابع طبیعی، دانشگاه آزاد اسلامی واحد علوم و تحقیقات محسن محسنی ساروی استاد گروه احیای مناطق خشک و کوهستانی، دانشگاه تهران سکینه ساعدی اوجقاز کارشناس ارشد مرتع داری دانشگاه تهران

the concept of land use transition highlights that land use change is non-linear and is associated with other societal and biophysical system changes. changes in human systems has resulted in changes in the natural system such as changes in land use. land use change causes not only environmental factors like geography and topography are important, but social factors examined such as population ...

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