Ecological Consequences of a New Coffee Production Technology

PI建议调查三种咖啡种植对该地区本地昆虫动物群的影响。初步规划活动包括：文献综述、选址、必要的许可和合作机构、方法实验、初步数据收集、数据分析和解释、实验重新设计和最终提案的撰写。第一年的活动将涉及3种管理系统的比较：1)传统农林业系统，种植各种遮荫树，种植咖啡；2)通过定期修剪，集中管理只有一种遮荫树种的农林复合系统；3)没有遮荫树的单一栽培咖啡。将选出代表性农场。有关蚁群、病虫害密度和分布的基线数据将采用标准抽样方法收集。光子通量密度和二氧化碳吸收量将使用Solarcal计算机程序直接计算。卫星照片将用于确定该国种植单一栽培系统的面积。氮肥和农药用量对蚁群和害虫的影响将在今后几年进行研究。

The PI proposes to investigate the effects of three types of coffee cultivation on the native insect fauna associated with the area. Preliminary planning activities include: literature review, site location, necessary permissions and collaborating institutions, experimentation with methodologies, preliminary data gathering, data analysis and interpretation, experiment redesign and writing of final proposal. Activities during the first year will involve the comparison of 3 management systems: 1) Traditional agroforestry system with a variety of shade trees interplanted with coffee; 2) the agroforestry system with just one shade tree species intensively managed through periodic pruning; and 3) monocultural coffee with no shade tree. Representative farms will be selected. Base-line data related to ant assemblages, insect pest and disease densities and distributions will be gathered using standard sampling methods. Photon flux density and CO2 uptake will be calculated directly using the Solarcal computer program. Satellite photographs will be used to determine the area of the country planted in the monocultural system. The effect of nitrogen fertilization and the effect of pesticide insecticide applications on the ant assemblage and on pests will be studied in subsequent years.