AN ECONOMIC-ANALYSIS OF IMPROVED AGROFORESTRY PRACTICES IN THE AMAZON LOWLANDS OF ECUADOR

被引:9
作者
RAMIREZ, A
SERE, C
UQUILLAS, J
机构
[1] Economics Section, Tropical Pastures Program, Centro Internacional de Agricultura Tropical, CIAT, Cali
关键词
AMAZON; AGROFORESTRY; TROPICAL RAIN-FORESTS; LAND USE; ECONOMIC ANALYSIS; ON-FARM RESEARCH; SHIFTING CULTIVATION;
D O I
10.1007/BF00122928
中图分类号
S3 [农学(农艺学)];
学科分类号
0901 ;
摘要
Since 1985, Ecuador's Ministry of Agriculture has undertaken a demonstration project to promote improved agroforestry practices in already cleared lands of Ecuador's Amazon lowlands to promote regeneration of deforested areas. An important expected outcome of this project is to ameliorate growing population pressures on remaining national forests and natural reserves. These practices include managing natural regeneration of marketable timber trees intercropped to Coffea canephora var. robusta and grass-legume associations, using adequate techniques of coffee pruning, and planting Desmodium ovalifolium CIAT 350 as a ground cover crop or a forage legume in paddocks of the genus Brachiaria. This research was conducted to assess the potential economic impact of such a strategy and to feed back information on research and policy issues. Improved agroforestry practices in this region are not only technically practicable but also economically feasible. Proposed technologies enhance long-term productivity of both land and labor while saving on external inputs and hired labor, making on-going systems more adoptable and sustainable. Future land-use policies should consider on-farm primary forest preservation and controlled natural regeneration of high-value timber in secondary forests as socially efficient land-use patterns. Future research must address germplasm of grass and forage legumes both shade tolerant, and less field management-demanding than current ones. To have a lasting effect this technology should probably be incorporated into a Regional Forest Management Plan, for sustainable production at the secondary forests created with agroforestry technology.
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页码:65 / 86
页数:22
相关论文
共 5 条
  • [1] Bremer J.A., Dickinson J., Gore P., Hynam E., Andre M., Fragile lands: a theme paper on problems, issues and approaches for development of humid tropical lowlands and steep slopes in the Latin American region, (1984)
  • [2] Conway G.R., Agroecosystem analysis, Analysis Administration, 28, 1, pp. 31-55, (1985)
  • [3] Plan de acción forestal, Diagnóstico 1990–1995, (1990)
  • [4] Peck R.B., Bishop J.B., Manejo de bosques secundarios en sistemas agroforestales para mejorar la producción sostenida en la Amazonía ecuatoriana, Taller sobre Manejo y Conservación del Ecosistema Forestal en los Trópicos Húmedos March 12–16, 1990, (1990)
  • [5] Ramirez A., Sere C., Uquillas J., Impacto socioeconómico de sistemas agroforestales en la selva baja del Ecuador, Collaborative Project FUNDAGRO-CIAT/MAG-USAID, (1990)