首页 | 本学科首页   官方微博 | 高级检索  
     检索      


Land‐use trade‐offs between tree biodiversity and crop production in the Atlantic Forest
Authors:Vinícius Marcilio‐Silva  Márcia C M Marques  Jeannine Cavender‐Bares
Institution:1. Laboratório de Ecologia Vegetal, Setor de Ciências Biológicas, Universidade Federal do Paraná, Curitiba, PR, Brazil;2. Department of Ecology, Evolution and Behavior, Institute on Environment, University of Minnesota, Saint Paul, MN, U.S.A.
Abstract:Trade‐offs in ecosystem services (ES) have received increasing attention because provisioning services often come at the expense of biodiversity loss. When land‐use patterns are not maximally efficient relative to productivity, provisioning services, such as crop production, can often be increased without losing biodiversity. The Atlantic Forest (AF) encompasses dense, mixed, and seasonal forests and has high levels of endemism and anthropogenic threat. We examined trade‐offs between biodiversity and crop production in the AF to provide insights into land‐use management decisions. We developed a biodiversity metric that combines information on tree species richness, evolutionary distinctiveness, and rarity at the local level. We examined the extent to which the nature of ES trade‐offs differ among the 3 forest types. We assessed how annual deforestation rates and land management practices affect biodiversity and agricultural revenues. Finally, we tested whether it is possible to achieve the same total regional revenue without reducing biodiversity by improving local management practices. The 3 forest types had similar patterns in ES trade‐offs, although within mixed forest patterns differed. Biodiversity appeared to be more sensitive to land‐use change than crop revenues. Certain crops yielded up to 10 times higher values in some sites. Enhanced crop productivity may increase revenues without reducing biodiversity. Our results showed that to enhance human well‐being without further conversion of AF, maximizing crop productivity is needed . Increasing efficiency of management outcomes by maintaining higher biodiversity and increasing provisioning services depends on knowledge of forest type, the comparative advantage of planting crops in the best places, and preserving species in a balanced manner across forests.
Keywords:biodiversity measurement  cropland  deforestation  ecosystem services  sustainability  deforestació  n  medició  n de la biodiversidad  servicios ecosisté  micos  sustentabilidad  tierras agrí  colas                                                        
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