首页 | 本学科首页   官方微博 | 高级检索  
     


An assessment of agroforestry systems in the southern USA
Authors:F. C. Zinkhan  D. E. Mercer
Affiliation:(1) Daniel B. Warnell School of Forest Resources, The University of Georgia, 30602-2152 Athens, GA, USA;(2) Southern Research Station, USDA Forest Service, Box 12254, 27709 Research Triangle Park, NC, USA
Abstract:An assessment of the southern USA, based on a survey of land-use professionals and a review of the literature, revealed that it is a diverse region with substantial potential for agroforestry to address a combination of problems and opportunities. The survey indicated that silvopastoral systems are the most common form of agroforestry in the region. Increased economic returns, diversification, and enhancement of the timing of cash flows were the most frequently mentioned benefits associated with the establishment of silvopastoral systems. Some of the problems associated with alley-cropping systems — less frequently observed than silvopastoral systems — were lower-than-expected productivity or profitability, damage to trees when cultivating the crop component, and labor/management skill constraints. Based on the findings of the literature review and the survey, special opportunities for implementing agroforestry systems in the region were identified, including the following: to improve marginal lands; to serve as windbreaks and buffer strips for improved water quality and wildlife habitat; to enhance the economics of selected natural pine, hardwood plantation, and pine plantation systems; and to provide specialty products on small landownerships.
Keywords:alley cropping  buffer strips  silvopastoral systems  southern pine  southern hardwood forests  windbreaks
本文献已被 SpringerLink 等数据库收录!
设为首页 | 免责声明 | 关于勤云 | 加入收藏

Copyright©北京勤云科技发展有限公司  京ICP备09084417号