نتایج جستجو برای: land policies

تعداد نتایج: 235399  

2010
Pete Smith Peter J. Gregory Detlef van Vuuren Michael Obersteiner Petr Havlík Mark Rounsevell Jeremy Woods Elke Stehfest Jessica Bellarby

A key challenge for humanity is how a future global population of 9 billion can all be fed healthily and sustainably. Here, we review how competition for land is influenced by other drivers and pressures, examine land-use change over the past 20 years and consider future changes over the next 40 years. Competition for land, in itself, is not a driver affecting food and farming in the future, bu...

2016
Takafumi Miyasaka Toshiya Okuro Xueyong Zhao Kazuhiko Takeuchi

Previous field research on the Horqin Sandy Land (China), which has suffered from severe desertification during recent decades, revealed how land use on a sand-dune topography affects both land degradation and restoration. This study aimed to depict the spatial distribution of local land use in order to shed more light on previous field findings regarding policies on a broader scale. We perform...

2007
Ruben N. Lubowski Andrew J. Plantinga Robert N. Stavins Michael Roberts Patrick Sullivan

Land-use changes involve important economic and environmental effects with implications for international trade, global climate change, wildlife, and other policy issues. We use an econometric model to identify factors driving land-use change in the United States between 1982 and 1997. We quantify the effects of net returns to alternative land uses on private landowners’ decisions to allocate l...

2012
Ye Hua Dennis Wei

This research examines government policies and urban transformation in China through a study of Hangzhou City, which is undergoing dramatic growth and restructuring. As the southern center of the Yangtze River Delta, an emerging global city region of China, Hangzhou has been restlessly searching for strategies to promote economic growth and survive the competition with Shanghai. This paper anal...

Journal: :Journal of environmental management 2007
Hualou Long Guoping Tang Xiubin Li Gerhard K Heilig

This paper analyzes characteristics, major driving forces and alternative management measures of land-use change in Kunshan, Jiangsu province, China. The study used remote sensing (RS) maps and socio-economic data. Based on RS-derived maps, two change matrices were constructed for detecting land-use change between 1987 and 1994, and between 1994 and 2000 through pixel-to-pixel comparisons. The ...

2008
W. WU E. De Pauw

This paper presents a study on land degradation monitoring focused in the west part of the MuUs Sandy Land in Ordos, one of the important dry areas in China, aiming to understand land degradation distribution in space and time and the role of anthropogenic action in such land surface processes at local level. Multi-temporal Landsat images (MSS 1978, 1979; TM 1987, 1989, 1991 and 2007; ETM+ 1999...

2006
Michael Wegener

The urgency of the environmental debate has renewed the interest in the application of integrated models of urban land use and transportation. In the United States new legislation inspired by growing environmental awareness such as the Intermodal Surface Transportation Efficiency Act of 1991 requires that transportation planning must consider the interaction between transportation and land use ...

2016
Chao Wang Qiong Gao Xian Wang Mei Yu

Uncovering magnitude, trend, and spatial pattern of land cover/land use changes (LCLUC) is crucial for understanding mechanisms of LCLUC and assisting land use planning and conservation. China has been undergoing unprecedented economic growth, massive rural-to-urban migration, and large-scale policy-driven ecological restoration, and therefore encountering enormous LCLUC in recent decades. Howe...

2014
Jing Zhang Jianming Niu Alexander Buyantuev Jianguo Wu

Drylands, which occupy more than 40% of the Earth’s land surface, are highly susceptible to degradation. It is important to understand causes, mechanisms, and environmental consequences of dryland ecosystem degradation. Land use policies are known to play a critical role in driving land cover changes, as well as in mitigating land degradation and promoting sustainable development in drylands. W...

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