نتایج جستجو برای: shifting cultivation

تعداد نتایج: 61727  

2012

An estimated 260 million indigenous peoples live in Asia. Most of them inhabit forested uplands where a large number of them practice shifting cultivation, which is also called as swidden cultivation or rotational farming. For them, shifting cultivation is not merely a technique of farming; it is their ways of life. Government policies and laws have attempted to limit or outright ban shifting c...

2017
Andreas Heinimann Ole Mertz Steve Frolking Andreas Egelund Christensen Kaspar Hurni Fernando Sedano Louise Parsons Chini Ritvik Sahajpal Matthew Hansen George Hurtt

Mosaic landscapes under shifting cultivation, with their dynamic mix of managed and natural land covers, often fall through the cracks in remote sensing-based land cover and land use classifications, as these are unable to adequately capture such landscapes' dynamic nature and complex spectral and spatial signatures. But information about such landscapes is urgently needed to improve the outcom...

Journal: :ecopersia 2014
uttam sharma mrinmoy datta vikas sharma

a field study was undertaken with four farming systems (fs) such as; grasses and fodders, agro-forestry, agriculture (new farming systems) and shifting cultivation (old practice), to investigate the effect of land use on the soil properties, erosion and crop productivity on a loamy acidic alfisol. besides crops, the livestock were also kept and their dropping were incorporated in the respective...

Journal: :Remote Sensing 2013
Kaspar Hurni Cornelia Hett Michael Epprecht Peter Messerli Andreas Heinimann

The delineation of shifting cultivation landscapes using remote sensing in mountainous regions is challenging. On the one hand, there are difficulties related to the distinction of forest and fallow forest classes as occurring in a shifting cultivation landscape in mountainous regions. On the other hand, the dynamic nature of the shifting cultivation system poses problems to the delineation of ...

2005
Douglas R. Brown Christopher B. Barrett Marc F. Bellemare Richard N. Boisvert John Hoddinott Harry M. Kaiser Christine M. Moser

Shifting cultivation is the primary means of livelihood for subsistence farmers throughout the humid forests of the tropics. Sustainable use of the resource base as a source of fertile land for cultivation requires long periods of fallow and the ability to move the zone of active cultivation from one location to another over time. At the individual patch or field level, shifting cultivation is ...

2014
Santiago López

Agricultural expansion is one of the prime driving forces of global land cover change. Despite the increasing attention to the factors that cause it, the patterns and processes associated with indigenous cultivation systems are not well understood. This study analyzes agricultural change associated with subsistence-based indigenous production systems in the lower Pastaza River Basin in the Ecua...

2015
Piotr Magnuszewski Katarzyna Ostasiewicz Robin Chazdon Carl Salk Michal Pajak Jan Sendzimir Krister Andersson Paul Adam

Shifting cultivation is a traditional agricultural practice in most tropical regions of the world and has the potential to provide for human livelihoods while hosting substantial biodiversity. Little is known about the resilience of shifting cultivation to increasing agricultural demands on the landscape or to unexpected disturbances. To investigate these issues, we develop a simple social-ecol...

Journal: :Netherlands Journal of Agricultural Science 1959

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