Agroecological and Market Roles of Biologic Diversity in the Cacao Agroforestry Systems of Bahia, Brazil

巴西巴伊亚可可农林复合系统中生物多样性的农业生态和市场作用

• 批准号: 9422382
• 负责人: William Doolittle
• 金额: $ 0.35万
• 依托单位: University of Texas at Austin
• 依托单位国家: 美国
• 项目类别: Standard Grant
• 财政年份: 1995
• 资助国家: 美国
• 起止时间: 1995-05-15 至 1996-01-31
• 项目状态: 已结题
• 来源: https://www.nsf.gov/awardsearch/showAward?AWD_ID=9422382&HistoricalAwards=false
• 关键词: Agroecological; Market; Roles; Biologic; Diversity

SBR-9422382 William E. Doolittle Norman D. Johns University of Texas-Austin Agroecological and Market Roles of Biologic Diversity in the Cacao Agroforestry Systems of Bahia, Brazil This research will integrate environmental and market factors to examine the agroforestry systems in southeastern Bahia, Brazil which produce cacao exclusively for an international market. The objective is to understand the rationale of the region's farmers to shade their cacao trees with either a dense, diverse canopy of native rainforest trees, known as cabrocagem, or to modernize with a thinner, homogeneous cover of imported trees and incorporate fertilizers and other technological inputs. The research methodology will employ regional and farm-scale phases. The regional-scale analysis will, for the first time, establish the cultivation patterns of the two farm types based on archive data and aerial photography held in Brazil's Center for Cacao Research near Itabuna, Bahia. This analysis will examine natural environmental gradients in climate and soil type along with regional variation in credit and technology availability for their role in determining the type of cultivation. The proposed dissertation research will contribute to the understanding of the interacting roles that factors of the natural environment, products markets, and individual farmer attitudes and goals play in shaping the level of biological diversity within an agroforestry system. This is especially significant since the agricultural policy environment of many tropical countries favors development of market-oriented systems of agroforestry.

SBR-9422382 William E.杜利特尔·诺曼·D德克萨斯大学奥斯汀分校 巴西巴伊亚可可农林复合系统中生物多样性的农业生态和市场作用 本研究将整合环境与市场因素，以探讨巴西东南部巴伊亚的农林业系统，其生产的可可豆专供国际市场。 其目的是了解该地区农民的理由，他们要么用密集、多样的本土雨林树木（称为cabrocagem）的树冠来遮蔽他们的可可树，要么用进口树木的较薄、均匀的覆盖物来实现现代化，并结合肥料和其他技术投入。 研究方法将采用区域和农场规模阶段。 区域规模的分析将首次根据档案数据和在巴伊亚伊塔布纳附近的巴西可可研究中心举行的航空摄影确定两种农场类型的种植模式。 这项分析将审查气候和土壤类型的自然环境梯度沿着信贷和技术可用性的区域差异，以确定其在确定耕作类型方面的作用。 拟议的论文研究将有助于理解的相互作用，自然环境，产品市场的因素，和农民个人的态度和目标在塑造农林系统内的生物多样性水平发挥。 这一点特别重要，因为许多热带国家的农业政策环境有利于发展面向市场的农林系统。