省域湿地退化风险评价研究——基于地理格网与景观特征单元的多尺度分析  

Study on Risk Assessment of Provincial Wetland Degradation—Based on Multi-scale Analysis of Geographical Grids and Landscape Character Units

作　　者：陈慕婷 周剑云[3,4] 鲍梓婷 华国栋 李俊良 CHEN Muting;ZHOU Jianyun;BAO Ziting;HUA Guodong;LI Junliang

机构地区：[1]华南理工大学 [2]广州市城市规划勘测设计研究院,广州510641 [3]华南理工大学建筑学院城市规划系,广州510641 [4]华南理工大学亚热带建筑科学国家重点实验室,广州510641 [5]华南理工大学建筑学院风景园林系 [6]广东省林业调查规划院湿地监测室,广州510520 [7]华南理工大学建筑学院,广州510641

出　　处：《中国园林》2023年第4期52-58,共7页Chinese Landscape Architecture

基　　金：国家自然科学青年基金项目“区域尺度景观特征变化的评估与监测方法研究——以珠江三角洲为例”(编号51908223);广州市科技计划项目“运用景观特征评估方法探索划定广州市域的‘三区三线’”(编号202102021193)共同资助。

摘　　要：地理格网与空间单元的划分是将基于多维指标的量化评价结果转化为地理空间信息的关键过程。快速城市化背景下,湿地生态系统的退化风险不仅取决于湿地类型,更取决于其外部环境,而景观特征评估为此提供了一种更加综合整体的空间单元划分方法。以广东省为例,探索基于景观特征评估方法来划分湿地景观特征单元,并采用简单风险指数模型构建基于网格与景观特征单元的多尺度湿地退化风险评价体系。地理格网评价结果有助于识别高退化风险湿地斑块,而湿地景观特征单元为整合高度分散的湿地斑块及其网络提供了多维度、可识别、面向管理的空间边界与框架,为区域生态系统评价与保护的空间划分提供了新思路。The scale of geographical grid and the division of spatial units are the key processes of transforming the quantitative evaluation results based on multi-dimensional indicators into geospatial information.Under the background of rapid urbanization,the degradation risk of wetland ecosystem not only depends on the type of wetland,but also depends on its external environment.Meanwhile,landscape character assessment(LCA)provides a more comprehensive and integrated method for dividing spatial units.Taking Guangdong Province as an example,this paper explored the division of wetland landscape character units based on LCA,and used a simple risk index model to build a multi-scale wetland degradation risk assessment system that integrates geographical grids and wetland landscape character units.The results of geographical grid evaluation are helpful to identify wetland patches with high degradation risk,and the wetland landscape character units provide a multi-dimensional,identifiable and management oriented spatial boundary and framework for integrating highly dispersed wetland patches and their networks.

关 键 词：风景园林 湿地退化风险 省域尺度 湿地景观特征单元 地理格网 

分 类 号：TU986[建筑科学—城市规划与设计]