نتایج جستجو برای: range land

تعداد نتایج: 776847  

1998
Albert Berry

1 The term reform is used for a wide range of changes, including some which increase the concentration of land. Here the discussion is limited to cases in which an increase in the number of families with access to enough land to helo them avoid poverty is at least a reasonably likely result, since otherwise it would not be expected to contribute to prevention of agriculture-related emergencies....

2003
Jeffrey D. Kline

Economists increasingly face opportunities to collaborate with ecologists on landscape-level analyses of socioeconomic and ecological processes. Tnis often calls for developing empirical models to project land use change as input into ecological models. Providing ecologists with the land use information they desire can present many challenges regarding data, modeling, and econometrics. This pap...

For an optimum use of natural resources in the sustainable development trend, there is a need to identify ecological resources in the shortest period of time and minimum possible cost. In this article, we aimed Management ecosystem by Assessment of plant covers changes at Taleghan Township in a twenty year period. Percentage of landscape and number of patch were among the metrics that were calc...

2010
Sung-Jin Kang Sun-Hwa Kim Jeong Eun Kyu-Sung Lee

ABSTRACT: The MODIS images have been useful for a wide range of land, ocean and atmosphere phenomena. However, 1km resolution would not be enough to detect land changes for small areas comprised of various land cover types. For this study, wavelet-based fusion and adaptive regression model were applied for improvement MODIS five 500m bands, and outputs are compared by some evaluation indicators...

1999
Fiona Evans

We describe a project that is monitoring land condition in the south west of Western Australia using Landsat Thematric Mapper satellite images and terrain data derived from digital elevation models (DEMs). Land Monitor is a multi-agency project of the Western Australian Salinity Action Plan supported by the Natural Heritage Trust. The focus of the project is on broad-scale monitoring of land co...

2001
Yongjun Lei

Research has shown that impervious surfaces, a consequence of development, have a direct impact upon stream quality. Local planners and land-use officials need simple tools to help them determine the amount of impervious surface within watersheds and to assess impacts from future development. This paper describes an ArcView GISbased model being developed by the Northeast Regional Earth Science ...

2011
M. Mokarram F. Aminzadeh

Cell-based Multicriteria Evaluation (MCE) methods are used to analyse the land suitability evaluation. Land evaluation is carried out to estimate the suitability of land for a specific use such as arable farming or irrigated agriculture. land suitability evaluation is a prerequisite for land-use planning and development (Sys 1985; Van Ranst and others 1996). It provides information on the const...

Journal: :Remote Sensing 2013
Hao Wu Yurong Sun Wenzhong Shi Xiaoling Chen Dongjie Fu

Understanding the spatial patterns of urban land use at both the macro and the micro levels is a central issue in global change studies. Due to the nonlinear features associated with land use spatial patterns, it is currently necessary to provide some distinct analysis methods to analyze them across a range of remote sensing imagery resolutions. The objective of our study is to quantify urban l...

Journal: :global journal of environmental science and management 0
m. tajbakhsh department of watershed management, faculty of natural resources and environment, university of birjand, birjand, iran h. memarian department of watershed management, faculty of natural resources and environment, university of birjand, birjand, iran y. shahrokhi department of watershed management, faculty of natural resources and environment, university of birjand, birjand, iran

mashhad city, according to the latest official statistics of the country is the second populated city after tehran and is the biggest metropolis in the east of iran. considering the rapid growth of the population over the last three decades, the city’s development area has been extended, significantly. this significant expansion has impacted natural lands on suburb and even some parts e.g. rang...

2016
Kimberly L. Dawe Stan Boutin

Quantifying the relative influence of multiple mechanisms driving recent range expansion of non-native species is essential for predicting future changes and for informing adaptation and management plans to protect native species. White-tailed deer (Odocoileus virginianus) have been expanding their range into the North American boreal forest over the last half of the 20th century. This has alre...

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