中国生物多样性核心监测指标遥感产品体系构建与思考

The outlook and system construction for monitoring Essential Biodiversity Variables based on remote sensing:The case of China

生物多样性的稳定维持关乎人类生存发展与地球健康。生物多样性核心监测指标(Essential Biodiversity Variables,EBVs)旨在结合地面调查与遥感技术,为大尺度、长时间序列的生物多样性监测提供新的解决方案。然而,目前学界仍然缺乏一套国家尺度标准化EBVs遥感监测产品数据集,以进行生物多样性评估。本研究旨在对中国生物多样性核心监测指标遥感产品进行体系构建与思考,首先综述了目前EBVs的遥感研究概况,并根据EBVs研究文献的数量进行调研分析;同时,本文在已有遥感生物多样性产品优先标准的基础上,添加了“可重复性”的新标准,并据此构建了中国EBVs遥感产品体系与监测数据集的指标清单,最终对中国EBVs遥感研究存在的问题进行思考与讨论。本研究可为中国的生物多样性遥感监测提供科学依据,有望为中国生物多样性政策的制定提供支撑。

Background:Maintaining biodiversity is crucial to human beings.In recent years,the concept of Essential Biodiversity Variables(EBVs)has provided new insights into large-scale and long-time biodiversity monitoring.Looking at EBVs from a national monitoring perspective,some EBVs are anticipated to correspond with remote sensing-derived variables since remote sensing is the potential methodology able to offer globally qualified data with a high spatial and temporal resolution.However,the academic community still lacks consensual remote sensing variables that can correspond with EBVs solidly.Aims:This study aims to(1)review the current researches of remote sensing on EBVs;(2)propose a new criterion called“repeatability”on the basis of the current four remote sensing biodiversity product prioritization criteria;(3)construct a list of remote sensing products for EBVs in China based on these criteria.Problems&Prospects:First of all,there is a lack of systematic research on EBVs in China.Second,the potential of domestic satellites is not exploited enough.Third,some EBVs remote sensing products are not yet“repeatable”.In the future,there is a need to promote cooperation among scientists in the fields of ecology,remote sensing,and aerospace to further promote scientific research on the combination of EBVs and remote sensing.