نتایج جستجو برای: conservation agriculture

تعداد نتایج: 162006  

حقی زاده, علی, زینی وند, حسین, سلیمانی, لیلا,

The process of infiltration is one of the most important components of the hydrological cycle. On the other hand, the direct measurement of infiltration process is difficult, time spending and expensive. Infiltration models play a main role in managing water resources. Therefore, different types of models with various degrees of complexity were developed to reach this aim.  So, this research ca...

Journal: :International Soil and Water Conservation Research 2018

2010
Randolph H. Wynne Ralph Amateis Christine Blinn John McGee Phil Radtke Rupesh Shrestha Valerie Thomas Jessica Walker

Randolph H. Wynne, Ralph Amateis, Christine Blinn, John McGee, Phil Radtke, Rupesh Shrestha, Valerie Thomas, Jessica Walker Department of Forest Resources and Environmental Conservation, College of Natural Resources, Virginia Tech; Buck Kline, Virginia Department of Forestry; Gene Yagow, Biological Systems Engineering, College of Agriculture and Life Sciences, Virginia Tech; Paige Baldassaro, C...

2005
Filiz Dadaser Celik Uygar Ozesmi Asuman Akdogan

A participatory environmental management plan was prepared for Tuzla Lake, Turkey. Fuzzy cognitive mapping approach was used to obtain stakeholder views and desires. Cognitive maps were prepared with 44 stakeholders (villagers, local decisionmakers, government and non-government organization (NGO) officials). Graph theory indices, statistical methods and "What-if" simulations were used in the a...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2010
Ivette Perfecto John Vandermeer

Among the myriad complications involved in the current food crisis, the relationship between agriculture and the rest of nature is one of the most important yet remains only incompletely analyzed. Particularly in tropical areas, agriculture is frequently seen as the antithesis of the natural world, where the problem is framed as one of minimizing land devoted to agriculture so as to devote more...

Journal: :تحقیقات اقتصاد و توسعه کشاورزی ایران 0
امیرحسین علی بیگی دانشیار گروه ترویج و آموزش کشاورزی دانشکدۀ کشاورزی دانشگاه رازی غلامرضا برزو کارشناس ارشد توسعۀ روستایی دانشگاه رازی

in recent years, multifunctional agriculture as a new paradigm of agriculture and rural development was introduced to the world. multifunctional indicates that the inclusion of agricultural production functions (food, fiber) and unproductive functions (field of employment and income, strengthening social capital, conservation of biodiversity and genetic enhancement of rural industries, represen...

Journal: :Science 2000
C Kremen J O Niles M G Dalton G C Daily P R Ehrlich J P Fay D Grewal R P Guillery

Globally, tropical deforestation releases 20 to 30% of anthropogenic greenhouse gases. Conserving forests could reduce emissions, but the cost-effectiveness of this mechanism for mitigation depends on the associated opportunity costs. We estimated these costs from local, national, and global perspectives using a case study from Madagascar. Conservation generated significant benefits over loggin...

Journal: :journal of rangeland science 2013
victor r squires neymatolla safarov

tajikistan is a hotspot of plant and animal species diversity and endemism andis important for the conservation of biodiversity on a global scale. the country is located ata biological crossroads. species from central and northern europe, central asia, themiddle east, and north africa mingle here with endemics found nowhere else. therichness of tajikistan‘s biodiversity shows up at the genetic,...

2012
Khagendra Raj Baral

Despite weeds are a serious threat to promotion of organic farming, relatively less attention is given to research on weed management. This article explores a scope of integration of conservation agriculture for weed control and soil protection under organic farming. Limitation in the use of agro-chemicals under OF promotes intensive tillage for weed control. Mostly, tillage leads to depletion ...

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