系统保护规划的理论、方法及关键问题

Abstract

PDF HTML阅读 XML下载 导出引用 引用提醒 系统保护规划的理论、方法及关键问题 DOI: 10.5846/stxb201304220768 作者: 作者单位: 中国科学院生态环境研究中心城市与区域生态国家重点实验室,中国科学院生态环境研究中心城市与区域生态国家重点实验室 作者简介: 通讯作者: 中图分类号: 基金项目: 国土资源部公益性行业科研专项项目(201011018) Theory, work frame and hot issues of systematic conservation planning Author: Affiliation: State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences,State Key Laboratory of Urban and Regional Ecology,Research Center for Eco-Environmental Sciences,Chinese Academy of Sciences Fund Project: 摘要 | 图/表 | 访问统计 | 参考文献 | 相似文献 | 引证文献 | 资源附件 | 文章评论 摘要:为了减缓生物多样性丧失的趋势、将有限的保护资源用于关键区域,Margules等提出了系统保护规划(Systematic Conservation Planning)概念和方法,目前该方法已成为国际主流保护规划方法。与传统基于专家决策的保护体系规划方法不同,系统保护规划拥有量化的保护目标、保护成本,并综合考虑保护体系连通性、人为干扰因素,使用优化算法计算,从而获得空间明晰的生物多样性保护体系。在阐述规划理念、规划流程与方法的基础上,重点评述了生物多样性替代指标的选择、保护规划成本的计算、保护目标的设置、规划结果的可靠性评估等关键问题,并结合我国的具体情况,探讨了该方法在我国的应用前景,以期为推进我国生物多样性与生态服务功能的保护做出贡献。 Abstract:Biodiversity provides numerous essential services to humanity. But in past few decades, a large number of species have become increasingly threatened by anthropogenic disturbances. The current rates of extinction are estimated to be 100-1000 times greater than pre-human rates. In order to decrease the biodiversity loss rate and maximize the limited protection resources in key biodiversity areas, Margules raised the idea of Systematic Conservation Planning (SCP). It was widely used in conservation planning. In contrast to traditional method of conservation planning by expert decision, quantitative conservation targets, costs synthesized network connectivity, human disturbances and optimal algorithm were considered in SCP for obtaining a spatial-explicit conservation system. After analysis of planning theory, procedure, methods and review of existing SCP tools, four key issues in SCP research were summarized. The first issue is biodiversity indicators selection which means biodiversity mapping or quantification at genes, species, and ecosystems level to generates a biodiversity distribution matrix. It was demonstrated, at large scale, that quantification of biodiversity importance for species and ecosystems are more suitable than genes method, especially for a combination of species and ecosystems. The second is the estimation of cost that can be calculated in monetary and non-monetary terms. Many methods of cost quantification were reviewed in these paper and it indicated that conservation cost should not only incorporates socioeconomic data, but also biological features. The most important destination of SCP is to achieve some minimum representation of biodiversity features for the smallest possible cost by optimization. So an explicit conservation target is required. However, obtaining a rational target depends largely on the experiences of the experts who are forming these targets and that will inevitable bring about bias due to poor knowledge of the area and taxa. Our review suggests that a convictive method should take both static and dynamic factors into account and to construct heterogeneity target for different conservation feature(ecosystem services, vulnerability, e.g.) as the target in SCP is worthy of further study. Once outcomes of SCP were generated from mathematical algorithm, the reliability and performability are still indeterminacy. Therefore, as the fourth key issue, how to evaluate result and error from SCP are given in our context. Summing up these issues, its foreground for further application in China was also analyzed under current biodiversity situation. Distinctly, Chinese scientists need to realize that the development of ecological productive mode in China have failed to keep pace with rapid economic development. In the face of heterogeneous land use pattern, target function should take various context into consideration during planning procedure. In addition, the expropriation for biodiversity conservation means that the government expropriate land of rural collective economy organization because of dual system of state ownership and collective ownership. For this reason, the estimation of conservation opportunity cost is more meaningful than land purchase cost. This paper, therefore, by reviewing a large amount of past literatures, makes a summary and a commentary on the theory, work frame and key topics on SCP that might promote the conservation of biodiversity and ecosystems in China in the future. 参考文献 相似文献 引证文献