- 生态与环境
- 文章编号：1009-6000(2023)03-0116-09
- 中图分类号：X321 文献标识码：B
- Doi：10.3969/j.issn.1009-6000.2023.03.017
- 项目基金：国家自然科学基金项目（41971234，41971235）资助。
- 作者简介：樊应凭，南京大学地理与海洋科学学院，硕士研究生，南京市规划设计研究院有限责任公司城乡发展研究所，主要从事景观与生态学方向研究；
金晓斌，通信作者，南京大学地理与海洋科学学院，自然资源部海岸带开发与保护重点实验室，江苏省土地开发整理技术工程中心，教授，博士生导师；
陈传钊，海南国源土地矿产勘测规划设计院，学士；
马丽，南京大学地理与海洋科学学院，硕士研究生；
周寅康，南京大学地理与海洋科学学院，南京大学自然资源研究中心，教授，博士生导师。
- 沿海都市区景观格局与生态环境质量的时空演变及关联性分析 ——以海口市秀英区为例
- Spatial-Temporal Evolution and Correlation Analysis of Landscape Pattern and Ecological Environment Quality in Coastal Metropolitan Area: A Case Study of Xiuying District, Haikou
- 浏览量：
- 樊应凭 金晓斌 陈传钊 马丽 周寅康
- FAN Yingping JIN Xiaobin CHEN Chuanzhao MA Li ZHOU Yinkang
- 摘要：
以建设用地快速扩张推动的城市化过程中，人类对资源利用不当，土地利用方式与类型发生剧烈变化，景观格局特征愈发复杂，受格局影响的生态环境质量不断变化。为探究沿海都市区景观格局与生态环境质量的关联性，文章以海口市秀英区为案例区，利用4 期遥感影像数据在对1990—2015 年区域景观格局时空变化过程分析的基础上，采用遥感生态指数（RSEI）模型进行生态环境质量动态评估，结合地理探测器模型识别影响生态环境质量的关键景观因素，运用地理加权回归分析主导因素的空间分异特征。研究结果表明：（1）研究期内，景观格局经历了显著变化。边缘密度（ED）和斑块个数（NP）不断减小，景观格局破碎化程度减弱；斑块平均规模增大，形状复杂程度减小；邻近度和蔓延度（CON TAG）波动变化，结合度（COH E SION）渐高；景观类型多样性有所下降，优势景观类型的主导性逐步降低。（2）生态环境质量总体呈“先下降—后上升—再下降—整体下降”的态势，北部沿海地带生态环境条件较优。1990、2002、2007 和2015 年R SEI 优良区面积占比分别为91.60%、75.28%、69.64% 和84.04%。生态质量提升区主要集中于秀英区中西部乡镇，生态质量下降区集中于南部地区。（3）散布与并列指数（IJI）、欧式平均最邻近距离（MNN）、结合度指数（COHESION）、香农多样性指数（SHDI）与区域生态环境质量显著相关。其中散布与并列指数（I J I）、欧式平均最邻近距离（MNN）对生态环境质量总体呈负向影响，而结合度指数（COHESION）、香农多样性指数（SHDI）的影响效应既有促进也有抑制作用，具有明显的空间差异性。 - 关键词：
景观格局指数；RSEI指数；时空变化；机制；海口； - Abstract: In the process of urbanization driven by the rapid expansion of construction land, improper utilization of resources and drastic changes of land use patterns and types have taken place, and the ecological environment quality aff ected by the landscape pattern has been changing constantly. To explore the correlation between the landscape pattern of coastal urban areas and ecological environment quality, this paper analyzed the spatial-temporal changes of the landscape pattern and assessed the ecological environmental quality by remote sensing based ecological index (RSEI), then identifi ed the key landscape factors and analyzed their spatial differentiation characteristics with the methods of Geodetector and geographical weighting regression taking Xiuying district of Haikou as a case area from 1990 to 2015 based on 4 remote sensing images. The results show that: (1) The landscape pattern has undergone significant changes during 1990-2015. For example, the edge density (ED) and the number of patches (NP) has decreased, the landscape pattern has become less fragmented, mean patch area has increased, the complexity has decreased, the proximity and contagion has fl uctuated, the cohesion has increased, landscape diversity and evenness have decreased, and the dominance of leading type has gradually decreased. (2) The ecological environment quality presents a trend of decreasing fi rstly and increasing later and then declining, with an overall trend of decreasing. The ecological environment conditions in the northern coastal zone are relatively good and the proportion of excellent RSEI class accounts for 91.6%, 75.28%, 69.64% and 84.04% in 1990, 2002, 2007 and 2015, respectively. Areas with improved RESI are mainly distributed in the central and western townships of Xiuying district and areas with declined RESI are concentrated in the southern region. (3) Interspersion and juxtaposition index (IJI), the mean in Euclidean nearest neighbor distance (MNN), patch cohesion index (COHESION), Shannon index (SHDI) are signifi cantly related to ecological environment quality. Among them, IJI and MNN have a negative impact on the overall ecological environment quality, while COHESION and SHDI with obvious spatial diff erences have both positive and negative eff ects.
- Key words: landscape pattern index; RSEI index; spatial-temporal variation; mechanism; Haikou
期刊浏览
2024 年
2023 年
2022 年
2021 年
2020 年
2019 年
2018 年
2017 年
2016 年
2015 年
2014 年
2013 年
2012 年
2011 年
2010 年
2009 年
2008 年
2007 年
2006 年
2005 年
2004 年
2003 年
2002 年
1999 年