An economic analysis of improved agroforestry practices in the Amazon lowlands of Ecuador
An economic analysis of improved agroforestry practices in the Amazon lowlands of Ecuador
复制标题
厄瓜多尔亚马逊低地改良农林业实践的经济分析
DOI：
10.1007/bf00122928
复制
发表时间：
2004
影响因子：
2.2
通讯作者：
J. Uquillas
中科院分区：
文献类型：
--
作者：
A. Ramírez;C. Seré;J. Uquillas
自1985年以来，厄瓜多尔农业部开展了一个示范项目，在厄瓜多尔亚马逊低地已经开垦的土地上推广改进的农林做法，以促进毁林地区的再生。这一项目的一个重要预期成果是缓解人口对剩余国家森林和自然保护区日益增长的压力。这些做法包括管理自然更新的商品木材树木间作咖啡canephoravar. robusta和草豆类协会，使用适当的咖啡修剪技术，种植Desmodium ovalifolium CIAT 350作为地面覆盖作物或饲料豆类在围场的属Brachiaria。进行这项研究是为了评估这种战略的潜在经济影响，并反馈关于研究和政策问题的信息，在这一地区改进农林做法不仅在技术上可行，而且在经济上也可行。提出的技术提高了土地和劳动力的长期生产率，同时节省了外部投入和雇佣劳动力，使正在进行的系统更可采用和可持续。未来的土地使用政策应考虑将农场原生林保护和次生林中高价值木材的有控制的自然再生作为具有社会效益的土地使用模式。未来的研究必须解决种质的草和饲料豆类都耐荫，并减少现场管理的要求比目前的，有一个持久的效果，这项技术应该可能被纳入一个区域森林管理计划，可持续生产的次生林与农林技术创建。
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 toCoffea canephoravar.robustaand grass-legume associations, using adequate techniques of coffee pruning, and plantingDesmodium ovalifoliumCIAT 350 as a ground cover crop or a forage legume in paddocks of the genusBrachiaria. 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.