نتایج جستجو برای: rangeland and forest

تعداد نتایج: 16850726  

2017
Xinyang Yu Changhe Lu Antonio Fernández-Caballero

The importance of accurately monitoring rangeland degradation dynamics over decades is increasing in Linxia rangeland, the birthplace of the Yellow River in China. Since 2000, the Chinese government has implemented the “Grain for Green” program and enforced a grazing ban in Gansu province, one of the most degraded provinces, to mitigate the problem of rangeland degradation. The effects of these...

ژورنال: علوم آب و خاک 2012
عطااله کاویان, , قربان وهاب‏زاده, , مریم رضایی پاشا, ,

As the first event in soil erosion, rain splash erosion causes movement of soil fragments. Splash is an important process in interrill erosion. The amount of soil particles detached from the surface is associated with soil and rain characteristics and may be affected by rainfall erosivity and soil erodibility. Therefore, in this study, splash erosion rate and its relation with some soil propert...

2007

C R E I G H T O N M . L I T T O N *, J A M E S W. R A I C H w and M I C H A E L G . R YA N z§ *Department of Natural Resources and Environmental Management, University of Hawaii at Manoa, 1910 East-West Rd., Honolulu, HI 96822, USA, wDepartment of Ecology, Evolution and Organismal Biology, Iowa State University, 253 Bessey Hall, Ames, IA 50011, USA, zUSDA Forest Service, Rocky Mountain Research...

2011
Jennifer L.R. Jensen Karen S. Humes Andrew T. Hudak Lee A. Vierling Eric Delmelle

a Department of Geography, Texas Center for Geographic Information Science, 601 University Drive, Texas State University, San Marcos, San Marcos, TX 78666, United States b Department of Geography, McClure Hall 203, P.O. Box 443021, University of Idaho, Moscow, ID 83844, United States c Rocky Mountain Research Station, US Department of Agriculture Forest Service, 1221 South Main Street, Moscow, ...

Journal: :Journal of environmental quality 2006
Charles W Rice

AGRICULTURAL cropland, forest, rangeland, wetlands, and urban ecosystems have significant potential to offset large amounts of greenhouse gases (GHGs) through improved land management and increased productivity. To fully realize this potential, we must understand how to implement the proper management practices and technologies to mitigate carbon dioxide (CO2), nitrous oxide (N2O), and methane ...

2012
Richard Teague Fred Provenza Brien Norton Tim Steffens Matthew Barnes Mort Kothmann Roy Roath

1 Texas AgriLife Research, Texas A&M System, Vernon TX 76384 2 Department of Wildland Resources, Utah State University, Logan, UT 84322-52305 3 Centre for the Management of Arid Environments, Locked Bag 22, Kalgoorlie, WA 6433, Australia 4 United States Department of Agriculture-Natural Resources Conservation Service, Springfield, CO 81073 5 United States Department of Agriculture-Natural Resou...

2005
Ian A. Simpson Amanda M. Thomson Jennifer L. Brown

The introduction of domestic livestock particularly sheep and rangeland grazing by Norse settlers to Faroe during the 9th century has generally been described as a major pressure on a sensitive landscape, leading to rapid and widespread vegetation change and contributing to land degradation. This view has, however, been developed without consideration of Norse grazing management practices which...

حیدری, مسلم, زنگی آبادی, مریم, هنربخش, افشین, پژوهش, مهدی,

 In recent years, deferent methods for determination of optimal pattern of using water and soil resources have been applied. Due to importance of natural resources, watershed management through land use modification and correct application of land is necessary. However, single objective linear programming is not an efficient method in this matter. In this study, multi objective method of goal p...

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