Resources Science ›› 2019, Vol. 41 ›› Issue (11): 2059-2070.doi: 10.18402/resci.2019.11.09

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International research and application of habitat and resource equivalency analyses

LI Jingmei1,2, LI Yichun1   

  1. 1. School of Economics, Ocean University of China, Qingdao 266100, China
    2. Institute of Marine Development, Ocean University of China, Qingdao 266100, China
  • Received:2019-03-22 Revised:2019-09-02 Online:2019-11-25 Published:2019-12-03

Abstract:

Equivalency analysis method is a damage assessment method based on habitat/resource restoration objectives. This method determines the scale or cost of restoration project through service equivalence assumptions. It was first used by the United States for oil spill damage assessment and has become one of the mainstream methods for habitat and resource damage assessment and restoration in the world in recent years. It is widely used in the protection and restoration of habitats and resources such as estuarine wetlands, forests, and marine ecosystems. Since 2007, Chinese scholars have introduced equivalency analysis method, but the current research is only a simple extension of its application fields, lacking theoretical discussion. Under this background, this article systematically presents the background, conceptual principles, key assumptions, and input parameters of the equivalency analysis method, then summarizes its application fields in habitat and resource damage assessment, and finally discusses the controversies in the application of this method at this stage. Through examining the theoretical aspects of the ecological restoration methods, we hope that international research and management experiences can provide important references for relevant government authorities in China to manage ecological restoration.

Key words: habitat equivalency analysis (HEA), resource equivalency analysis (REA), habit restoration, resource restoration, natural resource damage assessment (NRDA), welfare implications