| 摘要: |
| 苏南水网地区景观格局日趋破碎化，生态保护与经济发展矛盾加剧，采用生态系统健康评价测度区域生态系统结构稳定性和服务功能可持续性，为区域
空间管控策略的制定提供客观依据，增强水网地区生态系统自适应性。以苏州市的雪绿漾片区为例，基于“活力(V)-组织力(O)-恢复力(R)-贡献力(C)”生态
系统健康评价模型，分析2002—2022年研究区生态系统健康时空分异特征，依据生态系统健康等级转移空间分布特征划定管控分区，并提出相应管控策略。研
究结果表明：2002—2022年雪绿漾片区生态系统健康指数均值持续下降，由0.38下降至0.28，Ⅰ级和Ⅱ级健康空间占比减少了约13.72%，Ⅲ级健康空间占
比下降了约4.66%，Ⅳ级和Ⅴ级健康空间占比上升了约18.38%；健康指数空间分布有一定差异，健康高值区多为水域密集地区，生态系统结构稳定、生态功能
完善；健康低值区以高度城镇化区域为主，生态系统抗干扰能力较弱，生态健康整体水平较低。依据2002—2022年雪绿漾片区生态系统健康等级转移空间分布
特征，将研究区划分为生态系统健康改善区、稳定区和退化区3类空间管控分区，并提出差异化的分区管控策略。生态系统健康评价可为空间分区管控提供科学依
据，促进水网地区生态系统健康稳定及可持续发展。 |
| 关键词: 风景园林 生态系统健康评价 分区管控 水网地区 VORC模型 |
| DOI：10.19775/j.cla.2025.01.0110 |
| 投稿时间：2023-09-27修订日期：2024-04-16 |
| 基金项目:国家自然科学基金项目(41301191)；2022年江苏省普通高校研究生科研创新计划项目(KYCX22_3309)；江苏省建设系统科技项目(2018ZD243)；
江苏高校品牌专业建设工程二期项目(风景园林)；“十四五”江苏省重点学科(风景园林学) |
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| Spatiotemporal Evolution Characteristics of Ecosystem Health and Zoning Control in the WaterNetwork Area of Southern Jiangsu Province: A Case Study of Xueluyang Area |
| DING Jinhua,,DING Jinhua |
| Abstract: |
| The landscape pattern of water network area in Southern Jiangsu is
increasingly fragmented, and the contradiction between ecological protection and
economic development is intensifying. With the proposed concept of ecological
civilization construction and sustainable development strategy in China, the concept
of ecosystem health is gradually paid attention to. A healthy ecosystem should have
reasonable ecological structure and functional conditions. In this paper, Ecosystem
Health Assessment was used to measure the stability of regional ecosystem
structure and the sustainability of service functions, so as to provide an objective
basis for the formulation of regional spatial management and control strategies, and
enhance the adaptability of ecosystems in water network areas. Taking Xueluyang
Area in Suzhou, Jiangsu Province as an example, this study analyzed the spatialtemporal
differentiation characteristics of ecosystem health in Xueluyang Area
from 2002 to 2022 based on the Ecosystem Health Assessment model of "Vigor
(V)-Organization (O)-Resilience (R)-Contribution (C)" with reference to existing
research results, determined the management and control zones according to the
spatial distribution characteristics of ecosystem health grade transfer, and then put
forward the corresponding control strategy. The results showed that: From 2002 to
2022, the mean value of ecosystem health index in Xueleuyang Area continued to
decline from 0.38 to 0.28; the area of high-value area decreased, while that of lowvalue
area increased significantly, which was potentially related to the continuous
expansion of construction land and the gradual decline of ecological land area in
Xueleuyang Area during the study period. The fragmentation of landscape structure
and the increase of ecosystem fragility were related to each other. Specifically,
the proportion of Grades I and II health space decreased by about 13.72%, that
of Grade III health space decreased by about 4.66%, while that of Grades IV and
Ⅴ health space increased by about 18.38%. There were some differences in the
spatial distribution of health index. The high-value areas were mostly located in
the middle of the study area, such as Nanxing Lake, Changbaidang (Wujiang) and
Zhangyandang areas, whose ecosystem structure was relatively complete and stable.
The low-value areas were mainly concentrated in Wujiang Economic Development
Zone and Shengze Industrial Park in the northwest and southeast, whose ecosystem
was vulnerable to external interference, resulting in weak adaptive ability. From
the perspective of spatial change of health grade, the area with increased health
grade was 107.32 km2, accounting for 9.03%, mainly located in Mingjing Lake and
Xujiayang area, etc. The area of forest land and water area increased slightly in the
region, which promoted the landscape connectivity and ecological space vitality of
the water network area, and maintained the integrity of the ecosystem. The area with
unchanged health grade was 625.48 km2, accounting for 52.67%, mainly located
in Changyang and Changbaidang (Wujiang) areas. The water area in the region
accounted for a large proportion and included part of cultivated land, so the structure
and organization of the ecosystem were relatively stable and could still maintain basic ecological
functions. The area of decreased health grade was 455.24 km2, accounting for 38.30%,
mainly located in Wujiang Economic Development Zone and Shengze Industrial
Park, etc. The urban construction land in the region expanded significantly,
the ecological environment was increasingly disturbed by social and economic
activities, and the self-adjustment ability of the ecosystem and ecological service
benefits declined significantly. According to the spatial distribution characteristics
of ecosystem health grade transfer in Xueluyang Area from 2002 to 2022, the
study area was divided into three types of spatial control zones, namely ecosystem
health improvement zone, stable zone and degraded zone, and differentiated
management strategies were proposed. The ecological background conditions of
the ecological system improvement area were better and the ecological functions
were relatively perfect, so we should attach importance to ecological conservation
and consolidate the health and stability of the regional ecological system. The
ecosystem environment in the stable area was generally in good condition, the
ecosystem structure and organization showed certain integrity, so resource balance
should be coordinated to eliminate the ecosystem health barrier. The habitat quality
of degraded ecosystems was poor, and the ecosystems were under greater external
pressure. Urban development should be controlled to improve the ecological health
of water network areas. Ecosystem health assessment can provide a scientific basis
for spatial zoning management, and promote the healthy, stable and sustainable
development of ecosystem in water network area. |
| Key words: landscape architecture ecosystem health assessment zoning control water network area VORC model |
