نتایج جستجو برای: land uses of agriculture

تعداد نتایج: 21188402  

Journal: :ISPRS Int. J. Geo-Information 2017
Ana Gago-Silva Nicolas Ray Anthony Lehmann

We use Bayesian methods with a weights of evidence approach to model the probability of land use change over the Western part of Switzerland. This first model is followed by a cellular automata model for spatial allocation of land use classes. Our results extend and enhance current land use scenarios studies by applying Dinamica Environment for Geoprocessing Objects (Dinamica EG) to a study are...

2015
KLAUS DEININGER SONGQING JIN FANG XIA JIKUN HUANG

— Agriculture made major contributions to China’s growth and poverty reduction, but the literature has rarely focused on the institutional factors that might underpin such structural transformation and productivity. Drawing on an 8-year panel of 1,200 households in six provinces, we find that land tenure insecurity, measured by past land reallocations, discourages households from quitting agric...

2008
Christina Miller Gerald J. Niemi JoAnn M. Hanowski Ronald R. Regal

Upland breeding bird communities were sampled from 225 points in 15 survey routes in the coastal region of western Lake Superior to examine relationships to human land use. Eighty-four species were detected and 50 were abundant enough to be included in data analysis. Monotonic quadratic regression models were constructed for these 50 species by using species counts as the dependent variable and...

احمد جلالیان, , عباس پاشایی, , حسین خادمی, , فرشاد کیانی, ,

To investigate the degree of forest degradation and the effect of land use change on selected soil quality attributes in loess-derived landforms, samples were taken from different land uses including forest, rangeland, degradated rangeland and farmland in Pasang watershed located in the Galikesh area of Golestan province (37°16'N, 55°30'E). The annual average temperature and mean precipitation ...

Journal: :Forest@ - Rivista di Selvicoltura ed Ecologia Forestale 2012

2012
Cherryl Walker

Report on a desktop study commissioned by the Food and Agriculture Organization (FAO) This paper was prepared under contract with the Food and Agriculture Organization of the United Nations (FAO). The positions and opinions presented are those of the author alone, and are not intended to represent the views of FAO. 2 CONTENTS List of Tables 4 Abbreviations used in the text 4 Acknowledgements 4 ...

Journal: :مدیریت خاک و تولید پایدار 0
فاطمه کاردل دانشگاه مازندران علیرضا تجری دانش آموخته کارشناسی ارشد گرایش آبخیزداری

increased soil dryness of hillsides and lands around the gully causes the aggravation of the gully erosion which leads to the desertion of the environment. soil moisture contents are various in different soil depths, gully positions, and in various land uses. these are fundamental for ecosystem sustainability in arid and semi-arid area. therefore, understanding the behavior of soil moisture in ...

Journal: :International Journal of Global Science Research 2019

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