نتایج جستجو برای: urban agriculture then

تعداد نتایج: 1007204  

Journal: :Environmental monitoring and assessment 2009
Hakan Alphan Hakan Doygun Yüksel I Unlukaplan

This study assessed land cover (LC) changes in Kahramanmaraş (K.Maraş) and its environs by using multitemporal Landsat and ASTER imagery, respectively belong to 1989, 2000 and 2004. A priori defined nine land cover classes in the classification scheme were urban and built-up, forest, sparsely vegetated areas, grassland, vegetated stream beds, unvegetated stream beds, bare areas, crop fields, an...

2008
Lara M. Kueppers Mark A. Snyder Lisa C. Sloan Dan Cayan Jiming Jin Hideki Kanamaru Masao Kanamitsu Norman L. Miller Mary Tyree Hui Du Bryan Weare

In the western United States, more than 79000 km has been converted to irrigated agriculture and urban areas. These changes have the potential to alter surface temperature by modifying the energy budget at the land–atmosphere interface. This study reports the seasonally varying temperature responses of four regional climate models (RCMs) – RSM, RegCM3, MM5-CLM3, and DRCM – to conversion of pote...

Journal: :محیط شناسی 0
علی اکبر عنابستانی استادیار گروه جغرافیای دانشگاه فردوسی مشهد محمد قربانی دانشیار گروه اقتصادکشاورزی دانشگاه فردوسی مشهد

nowadays, with population growth in urban areas, providing safe water and health is considered basic needs of human, alongside the various pollutants due to urban activities, agriculture and industrial areas on adjacent ranges into urban water resources around the environment is such that study necessary to prevent the pollution of water resources and identification of pollution sources shows. ...

2004
Abigail M. York Darla K. Munroe

The impact of growth management policy through zoning ordinances on land-use and -cover change is a topic of increasing interest, especially with regard to urban sprawl and forest and agricultural land preservation. As urban and residential land use is quickly replacing extractive land use in southern Indiana, implementation of growth management policy has become a topic of great debate. This a...

2003
Derek Eaton Thea Hilhorst

This paper examines the links between solid urban waste management and peri-urban agriculture in Bamako and Ouagadougou. Staple crop farmers in the vicinity of both cities value urban waste as a source of organic matter and are prepared to pay for it. Cultivation on degraded soils has even been revived in some cases thanks to this readily available resource. However, uncertain land tenure means...

2015
Cecilia Delgado

The increase in demand for spaces for agricultural production during times of crisis is well recognised (Cities, Poverty and Food, 2010) and this phenomenon can be verified in Portugal. This paper focuses on the access to urban land for agriculture and the need to revisit Land Use Planning to become a facilitating tool for long-term consolidation of UPA. This paper is an original essay drawing ...

2013
Xiubin Li Gergely Tóth Chunyuan He

To secure adequate food supply is the major challenge for humanity in the 21st century. Growing world population andits urbanization put pressure on this basic need, which is further threatened by the constant loss of fertile land. Theassessment of sustainability of food supply under increasing pressure on land resources has been selected as one of themost important priority topics ...

Journal: :Journal of Rural Problems 1977

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