基于“活力—组织力—恢复力—贡献力”框架的广州市生态系统健康评估

生态学杂志

基于“活力—组织力—恢复力—贡献力”框架的广州市生态系统健康评估

袁毛宁¹,刘焱序²,王曼³,田璐¹,彭建^1,3*

（¹北京大学深圳研究生院城市规划与设计学院，城市人居环境科学与技术重点实验室，深圳 518055；²北京师范大学地理科学学部，地表过程与资源生态国家重点实验室，北京 100875； ³北京大学城市与环境学院，地表过程分析与模拟教育部重点实验室，北京 100871）

出版日期:2019-04-10 发布日期:2019-04-10

Ecosystem health assessment based on the framework of vigor, organization, resilience and contribution in Guangzhou City.

YUAN Mao-ning¹, LIU Yan-xu², WANG Man³, TIAN Lu¹, PENG Jian^1,3*

(¹Key Laboratory for Environmental and Urban Sciences, School of Urban Planning and Design, Shenzhen Graduate School, Peking University, Shenzhen 518055, China; ²State Key Laboratory of Earth Surface Processes and Resource Ecology, Faculty of Geographical Science, Beijing Normal University, Beijing 100875, China; ³Laboratory for Earth Surface Processes, Ministry of Education, College of Urban and Environmental Sciences, Peking University, Beijing 100871, China).

Online:2019-04-10 Published:2019-04-10

摘要/Abstract

摘要： 健康的生态系统保障着人类的可持续发展，城市生态系统健康状态可以作为城市可持续发展的重要监测指标。本研究以“活力—组织力—恢复力—贡献力”为评估框架，构建城市生态系统健康评估指标体系，并以乡镇（街道）为研究单元、基于二级地类对广州市2000、2005、2010、2015年生态系统健康进行动态评估。结果表明：2015年，“健康”、“较健康”的乡镇（街道）数量占比不到1/5，市域生态系统健康状况整体不容乐观；2000—2015年，近3/4的乡镇（街道）生态系统健康等级未改变，“显著增强”、“显著减弱”的乡镇（街道）均只占1%，“增强”、“减弱”的乡镇（街道）则分别占5%、20%；从因子主导性来看，研究时段内无因子主导乡镇（街道）的数量基本不变，单因子、双因子主导的显著增加，三因子、四因子主导的趋于减少；整体而言，2000—2015年广州市生态系统活力有所提升但恢复力明显下降，生态系统健康整体呈现下降趋势，不利于城市生态系统可持续发展。

关键词: 作物需水量, 参考作物需水量, 作物系数, 气温

Abstract: A healthy ecosystem underpins the sustainable development of human. The health condition of an urban ecosystem can be used as an important monitoring index for assessing the sustainable development of a city. In this study, the assessment index system for ecosystem health was established under a framework of vigor, organization, resilience and contribution. The township was used as a spatial unit, and the ecosystem health of Guangzhou City was evaluated based on land use data (level II) in 2000, 2005, 2010, and 2015. The results showed that the overall health condition of the ecosystem was not optimistic in Guangzhou City. Less than 1/5 of the towns were healthy and relatively healthy in 2015. From 2000 to 2015, the healthy levels of 75% towns remained constant (with no improvement). The towns with significant enhancement or significant deterioration each accounted for only 1% of the total. The towns with enhancement and deterioration were 5% and 20%, respectively. During the study period, the numbers of towns dominated by singlefactor and doublefactor increased, while this value for threefactor or fourfactor decreased. Meanwhile, the number of towns dominated by nonfactor remained stable. Generally, the vigor of ecosystem of Guangzhou City had been improved but its resilience had obviously decreased from 2000 to 2015. The health condition of the whole ecosystem showed a downward trend, which was not conducive to the sustainable development of the urban ecosystem.

Key words: crop water requirement, reference evapotranspiration, crop coefficient, air temperature.

袁毛宁,刘焱序,王曼,田璐,彭建. 基于“活力—组织力—恢复力—贡献力”框架的广州市生态系统健康评估[J]. 生态学杂志.

YUAN Mao-ning, LIU Yan-xu, WANG Man, TIAN Lu, PENG Jian. Ecosystem health assessment based on the framework of vigor, organization, resilience and contribution in Guangzhou City.[J]. cje.

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