نتایج جستجو برای: Agroforestry systems

تعداد نتایج: 1184958  

Journal: :desert 2015
pardis goudarzian mohammad reza yazdani

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...

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: 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...

Journal: :بوم شناسی کشاورزی 0
محمد رضا چائی چی رضا کشاورز افشار سعید قنبرزاده

agroforestry is one the aspects of sustainable agriculture in which multiple cropping of perennial trees in mixture with crops guarantees the environmental, economical and social sustainability in rural communities. high demands for forage in northern provinces of iran lead to agroforestry in citrus orchards as a potential mean for forage production through agroforestry systems. this research w...

2014
D. Evan Mercer Frederick W. Cubbage

This chapter provides principles, literature and a case study about the economics of agroforestry. We examine necessary conditions for achieving efficiency in agroforestry system design and economic analysis tools for assessing efficiency and adaptability of agroforestry. The tools presented here (capital budgeting, linear progranuning, production frontier analysis and risk analysis) can help d...

2004
D. Evan Mercer Subhrendu K. Pattanayak

Agroforestry is a joint forest production system whereby land, labor, and capital inputs are combined to produce trees and agricultural crops (and/or livestock) on the same unit of land. Although existing for centuries (maybe millennia) as an array of traditional land use practices in the tropics, agroforestry emerged in the late 1970s as a modern, improved tropical land use system suitable for...

A.C.F. Aguiar A.R. Piedade E.G. Moura, E.S. Marques T.M.B. Silva

Trees improve the soil quality and their rapid growth in the tropics make agroforestry systems potentially effective for establishing low-input agricultural systems in this region. This study assessed the effects of the biophysical interactions among leguminous trees, weeds, cotton and maize in an alley cropping system. The experiment comprised six treatments: Clitoria + Gliricidia; Acacia ...

Journal: :Environmental monitoring and assessment 2012
Rong Mao De-Hui Zeng Lu-Jun Li Ya-Lin Hu

Labile fractions of soil organic matter (SOM) respond rapidly to land management practices and can be used as a sensitive indicator of changes in SOM. However, there is little information about the effect of agroforestry practices on labile SOM fractions in semiarid regions of China. In order to test the effects of land use change from monocropping to agroforestry systems on labile SOM fraction...

Journal: :Ecology 2008
Sunshine A Van Bael Stacy M Philpott Russell Greenberg Peter Bichier Nicholas A Barber Kailen A Mooney Daniel S Gruner

Insectivorous birds reduce arthropod abundances and their damage to plants in some, but not all, studies where predation by birds has been assessed. The variation in bird effects may be due to characteristics such as plant productivity or quality, habitat complexity, and/or species diversity of predator and prey assemblages. Since agroforestry systems vary in such characteristics, these systems...

2014
Aurora Saucedo-García Ana Luisa Anaya Francisco J. Espinosa-García María C. González

Over the past 20 years, the biodiversity associated with shaded coffee plantations and the role of diverse agroforestry types in biodiversity conservation and environmental services have been topics of debate. Endophytic fungi, which are microorganisms that inhabit plant tissues in an asymptomatic manner, form a part of the biodiversity associated with coffee plants. Studies on the endophytic f...

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