نتایج جستجو برای: agroforestry

تعداد نتایج: 2664  

2014
Ewuketu Linger

Homegarden agroforestry is believed to be more diverse and provide multiple services for household than other monocropping system and this is due to the combination of crops, trees and livestock. The aim of this study was to assess socio-economic and agro-ecological role of homegardens in Jabithenan district, North-western Ethiopia. Two sites purposively and two villages randomly from each site...

2005
JANAKI R.R. ALAVALAPATI EVAN MERCER

Agroforestry, the purposeful growing of trees and crops in interacting combinations, began to attain prominence in the late 1970s. when the international scientific community embraced its potentials in the tropics and recognized it as a practice in search of science. During the 1990s the relevance of agroforestry for solving problems related to deterioration of family farms, increased soil eros...

2000
Ramun M. Kho

Agroforestry is a young science in need of theories and methods providing predictive understanding. The present study is an attempt to contribute to the development of a general agroforestry theory and accessory methods. A tree-environment-crop interaction equation is derived in which the overall tree effect on crop production is explained as a balance of (positive and negative) relative net tr...

2016
M. F. Nawaz S. Gul T. H. Farooq M. T. Siddiqui M. Asif I. Ahmad N. K. Niazi

In Pakistan, major demands of fuel wood and timber wood are fulfilled by agroforestry. However, the information regarding economic significance of agroforestry and its productivity in Pakistan is still insufficient and unreliable. Survey of field conditions to examine the agroforestry status at local level helps us to know the future trends and to formulate the policies for sustainable wood sup...

2006

The physical environment affects and interacts with agroforestry systems through tree and crop growth, animal performance, management operations and interactions between the tree/shrub and non-tree components (abbreviated to tree/crop interactions). Interactions take place mainly through the media of microclimate, soil moisture and soil. They may have beneficial or adverse effects, for tree and...

Journal: Desert 2015

There has been some decline in the land potential capacity in many developing countries, and depending on location,the multi objective management strategy of Agroforestry can make effective use of natural resources to be feasible.Environmental principles which are effective on Agroforestry systems and their components, together with climaticfactors, are the important parameters which been evalu...

AbstractThe challenges of agroforestry systems’ adoption by farmers in the North central zone of Nigeria, was carried out to address the following objectives; find out the perception of farmers on agroforestry technologies, identify the adoption level and ascertain why farmers discontinue agroforestry adoption.. Data were collected from 722 agroforestry farmers out of 782 sets of questionnaire ...

Journal: :جنگل و فرآورده های چوب 0
سید محسن حسنی دانشجوی کارشناسی ارشد دانشگاه تهران قوام الدین زاهدی امیری استاد دانشگاه تهران سید مهدی حشمت الواعظین دانشیار دانشگاه تهران محمد عواطفی همت استادیار دانشگاه تهران سید حمید متین خواه استادیار دانشگاه صنعتی اصفهان

due to lack of agroforestry research in iran, it is important to identify the existing agroforestry systems in order to create a database for further researches. feridan and chadegan citis, west of isfahan province are two areas in which the various agroforestry systems have been developed. these two regions were selected for research because of providing the easy access and a variety of system...

Journal: :Journal of environmental quality 2011
Ranjith P Udawatta Harold E Garrett Robert Kallenbach

Despite increased attention and demand for the adoption of agroforestry practices throughout the world, rigorous long-term scientific studies confirming environmental benefits from the use of agroforestry practices are limited. The objective was to examine nonpoint-source pollution (NPSP) reduction as influenced by agroforestry buffers in watersheds under grazing and row crop management. The gr...

2013
Ramni Jamnadass Frank Place Emmanuel Torquebiau Eric Malézieux Miyuki Iiyama Gudeta W Sileshi Katja Kehlenbeck Eliot Masters Stepha McMullin John C Weber Ian K Dawson Gudeta Sileshi

Agroforestry supports food and nutritional security through: (1) the direct provision of tree foods such as fruits and leafy vegetables and by supporting staple crop production; (2) by raising farmers’ incomes through the sale of tree products and surplus staples; (3) by providing fuels for cooking; and (4) by supporting various ecosystem services such as pollination that are essential for the ...

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