Access the full text.
Sign up today, get DeepDyve free for 14 days.
(1992)
Tree-crop interactions in Taungya plantations
D. Current, E. Lutz, S. Scherr (1995)
Costs, Benefits, and Farmer Adoption of Agroforestry. Project Experience in Central America and the Caribbean, 14
I. Verinumbe, H. Knipscheer, E. Enabor (1984)
The economic potential of leguminous tree crops in zero-tillage cropping in Nigeria: a linear programming modelAgroforestry Systems, 2
(1991)
New Techniques On Site Preparation and Outplanting
(1994)
Reforestation through Agroforestry: Market-driven Small-holder Timber Production on the Frontier
(1996)
Costs and Returns of Hedgerow Intercropping and Open-field Maize Farming in the Philippine Uplands Working Paper No
J. Raintree, F. Turay (1980)
Linear programming model of an experimental leucaena-rice alley cropping system., 1
(1998)
Development and Management of Forest Plantations: A Guidebook
(1997)
Livelihood Enhancement Thru Agroforestry (LEAF) Program
(2000)
Introduction to Integrating Trees into Pacific Island Farm Systems
S. Franzel, S. Scherr, R. Coe, P. Cooper, F. Place (2002)
Methods for assessing agroforestry adoption potential.
A. Agpaoa (1976)
Manual of reforestation and erosion control for the Philippines
M. García (2004)
Smallholder timber production on sloping lands in the Philippines. A sistems approach
(1999)
Gmelina as improved fallow
C. Romero (1994)
Economía de los recursos ambientales y naturales
(1993)
Performance of Selected Multipurpose Tree Species and Field Crops Grown in Association as Affected by Tree Branch Pruning
(1987)
An Ethnohistory of An Upland Area: Claveria, Misamis Oriental
(1994)
Gmelina Arborea-annual Crop Interactions in Contour Hedgerow Systems for Smallholder Farm
C. Predo (2003)
What Motivates Farmers? Tree Growing and Land Use Decisions in the Grasslands of Claveria, Philippines
S. Brumelle, D. Granot, M. Halme, I. Vertinsky (1998)
A tabu search algorithm for finding good forest harvest schedules satisfying green-up constraintsEur. J. Oper. Res., 106
(2000)
Soil Management Strategies to Sustain Continuous Crop Production between Vegetative Contour Strips on Humid Tropical Hillsides
D. Betters (1988)
Planning optimal economic strategies for agroforestry systemsAgroforestry Systems, 7
G. Shively (1997)
Impact of contour hedgerows on upland maize yields in the PhilippinesAgroforestry Systems, 39
J. Borges, H. Hoganson, D. Rose (1999)
Combining a decomposition strategy with dynamic programming to solve spatially constrained forest management scheduling problemsForest Science, 45
P. Pasicolan, H. Haes, P. Sajise (1997)
Farm forestry: an alternative to government-driven reforestation in the PhilippinesForest Ecology and Management, 99
D. Garrity, Patricio Agustin (1995)
Historical land use evolution in a tropical acid upland agroecosystemAgriculture, Ecosystems & Environment, 53
Adb Avenue, Metro Philippines (2005)
© 2005 Asian Development Bank, The International Bank for Reconstruction and Development/The World Bank, and Japan Bank for International Cooperation
(1994)
Forestry Sector Study of the Philippines
(1996)
General Land Use Plan
(1988)
Acid Upland Agroecosystems: A Microlevel Analysis of the Claveria Research Site
G. Mendoza, G. Campbell, G. Rolfe (1986)
Multiple objective programming: An approach to planning and evaluation of agroforestry systems-- Part 1: Model description and developmentAgricultural Systems, 22
S. Snyder, C. Revelle (1996)
Temporal and spatial harvesting of irregular systems of parcelsCanadian Journal of Forest Research, 26
(1996)
Annual Review and Assessment of the World Tropical Timber Situation 1996
Melanio Gacoscosim (1995)
Philippine forestry in action
J. Roshetko, Mulawarman, P. Purnomosidhi (2004)
Gmelina arborea– a viable species for smallholder tree farming in Indonesia?New Forests, 28
In the Philippines, smallholder farmers have become major timber producers. But the systems of timber production practiced have several limitations. In intercropping systems, the practice of severe branch and/or root pruning reduces tree-crop competition and increases annual crop yields, but is detrimental to tree growth and incompatible with commercial timber production. In even-aged woodlots, lack of regular income and poor tree growth, resulting from farmers’ reluctance to thin their plantations, are major constraints to adoption and profitable tree farming. In the municipality of Claveria, Misamis Oriental, the recent practice of planting trees on widely spaced (6–8 m) contour grass strips established for soil conservation suggests ways to improve the adoptability (i.e., profitability, feasibility and acceptability) of timber-based agroforestry systems. Assuming that financial benefits are the main objective of timber tree farmers, we develop a simple linear programming (LP) model for the optimal allocation of land to monocropping and tree intercropping that maximizes the net present value of an infinite number of rotations and satisfies farmers’ resource constraints and regular income requirements. The application of the LP model to an average farmer in Claveria showed that cumulative additions of widely spaced tree hedgerows provides higher returns to land, and reduce the risk of agroforestry adoption by spreading over the years labour and capital investment costs and the economic benefits accruing to farmers from trees. Therefore, incremental planting of widely spaced tree hedgerows can make farm forestry more adoptable and thus benefit a larger number of resource-constrained farmers in their evolution towards more diverse and productive agroforestry systems.
Agroforestry Systems – Springer Journals
Published: Sep 1, 2006
Read and print from thousands of top scholarly journals.
Already have an account? Log in
Bookmark this article. You can see your Bookmarks on your DeepDyve Library.
To save an article, log in first, or sign up for a DeepDyve account if you don’t already have one.
Copy and paste the desired citation format or use the link below to download a file formatted for EndNote
Access the full text.
Sign up today, get DeepDyve free for 14 days.
All DeepDyve websites use cookies to improve your online experience. They were placed on your computer when you launched this website. You can change your cookie settings through your browser.