| 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。 |
| 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 |
| DOI： |
| 投稿时间：2021-12-16修订日期：2022-11-08 |
| 基金项目: |
|
| Study on Risk Assessment of Provincial Wetland Degradation—Based on Multi-scale Analysis of Geographical Grids and Landscape Character Units |
| CHEN Muting,ZHOU Jianyun,BAO Ziting,HUA Guodong,LI Junliang |
| Abstract: |
| 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. |
| Key words: landscape architecture wetland degradation risk provincial scale wetland landscape character unit geographic grid |
