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利用情景研究生物多样性轨迹——两个对比鲜明的农业景观的经验教训。

Investigating biodiversity trajectories using scenarios--lessons from two contrasting agricultural landscapes.

机构信息

Department of Systems Ecology, Stockholm University, SE-106 91 Stockholm, Sweden.

出版信息

J Environ Manage. 2009 Nov-Dec;91(2):499-508. doi: 10.1016/j.jenvman.2009.09.018. Epub 2009 Oct 22.

Abstract

Agriculture is the major land use at a global scale. In addition to food production, multifunctionality of landscapes, including values and ecosystem services like biodiversity, recreation and culture, is now focus for management. This study explores how a scenario approach, involving different stakeholders, may help to improve landscape management for biodiversity conservation. Local farmers and executives at the County Administrative Board were invited to discuss rural development and conditions for farmland biodiversity in two Swedish landscapes. The potential biodiversity for three future land use scenarios for the two landscapes was discussed: nature conservation, outdoor recreation and energy production, and compared with current and historical landscapes in each region. Analyses of habitat areas, connectedness and landscape diversity suggested that the energy and recreation scenarios had a negative impact on farmland biodiversity, whereas the nature conservation scenario, the current and historically reconstructed landscapes had a higher potential for biodiversity. The farmers appreciated the nature conservation scenario, but also the energy production scenario and they highlighted the need of increased subsidies for management of biodiversity. The farmers in the high production area were less interested in nature quality per se. The executives had similar opinions as the farmers, but disagreed on the advantages with energy production, as this would be in conflict with the high biodiversity and recreational values. The local physical and socio-economical conditions differ between landscapes and potentially shaped the stakeholders emotional attachment to the local environment, their opinions and decisions on how to manage the land. We stress the importance of incorporating local knowledge, visions and regional prerequisites for different land uses in conservation, since site and landscape specific planning for biodiversity together with a flexible subsidy system are necessary to reach the conservation goals within EU.

摘要

农业是全球范围内主要的土地利用方式。除了粮食生产,景观的多功能性,包括生物多样性、娱乐和文化等价值和生态系统服务,现在也是管理的重点。本研究探讨了情景方法如何帮助改善生物多样性保护的景观管理。邀请当地农民和郡行政委员会的主管讨论瑞典两个景观的农村发展和农田生物多样性条件。讨论了这两个景观的三个未来土地利用情景的潜在生物多样性:自然保护、户外娱乐和能源生产,并与每个地区的当前和历史景观进行了比较。对栖息地面积、连通性和景观多样性的分析表明,能源和娱乐情景对农田生物多样性有负面影响,而自然保护情景、当前和历史重建景观则具有更高的生物多样性潜力。农民们赞赏自然保护情景,但也赞赏能源生产情景,并强调需要增加对生物多样性管理的补贴。高生产力地区的农民本身对自然质量的兴趣不大。主管们与农民的意见相似,但不同意能源生产的优势,因为这与高生物多样性和娱乐价值相冲突。景观之间的当地自然和社会经济条件不同,这可能影响了利益相关者对当地环境的情感依恋、他们对土地管理的意见和决策。我们强调了在保护中纳入当地知识、愿景和不同土地利用的区域先决条件的重要性,因为生物多样性的现场和景观特定规划以及灵活的补贴系统是在欧盟内实现保护目标所必需的。

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