生态环境学报 ›› 2020, Vol. 29 ›› Issue (1): 59-70.DOI: 10.16258/j.cnki.1674-5906.2020.01.007

• 研究论文 • 上一篇    下一篇

1990—2018年海南岛湿地景观格局演变及其驱动力分析

雷金睿(), 陈宗铸*(), 陈毅青, 陈小花, 李苑菱, 吴庭天   

  1. 海南省林业科学研究院/海南省红树林研究院,海南 海口 571100
  • 收稿日期:2019-10-08 出版日期:2020-01-18 发布日期:2020-03-09
  • 通讯作者: * 陈宗铸(1977年生),男,副研究员,博士,研究方向为林业3S技术。E-mail: chenzongzhu@foxmail.com
  • 作者简介:雷金睿(1988年生),男,助理研究员,硕士,研究方向为湿地植物与景观演变。E-mail: raykingre@163.com
  • 基金资助:
    海南省财政科技计划项目(KYYS-2018-32);海南省财政科技计划项目(KYYS-2019-12)

Landscape Pattern Changes and Driving Factors Analysis of Wetland in Hainan Island during 1990-2018

LEI Jinrui(), CHEN Zongzhu*(), CHEN Yiqing, CHEN Xiaohua, LI Yuanling, WU Tingtian   

  1. Hainan Academy of Forestry/Hainan Academy of Mangrove, Haikou 571100, China
  • Received:2019-10-08 Online:2020-01-18 Published:2020-03-09

摘要:

以1990、1995、2000、2005、2010年Landsat TM和2015、2018年Landsat OLI 7期遥感影像为主要数据源,综合运用景观动态分析、景观格局指数和数理统计等方法分析了近30年来海南岛湿地景观演变特征及其驱动因子。结果表明:(1)1990—2018年间,海南岛湿地景观总面积呈增长的趋势,且在2005年之前湿地综合动态变化较剧烈,2005年以后变缓。2018年湿地总面积达1337.57 km2,面积净增加393.21 km2,年变化率为14.04 km2∙a-1;(2)在研究期内,人工湿地持续增长,自然湿地则持续减少,其中水产养殖场和库塘的净增加面积最高,分别为268.53 km2和179.46 km2;澙湖减少最多,为86.65 km2;盐田和红树林的面积变化不大;(3)海南岛湿地景观总体呈现破碎度增大、连通度降低、斑块形状趋于复杂的变化特征,以库塘、水产养殖场等人工类湿地的变化较大,自然类湿地变化较小;(4)研究区人口总数、城镇人口、国内生产总值和渔业生产总值是影响湿地景观变化的关键因素,是导致研究区自然湿地减少、人工湿地增加和湿地景观多样性变化与破碎化的主要驱动因子。研究结果可为海南岛湿地资源今后的保护利用和规划提供重要的参考。

关键词: 海南岛, 湿地景观格局, 时空动态变化, 遥感, 驱动力

Abstract:

The 1990, 1995, 2000, 2005, 2010 Landsat TM and 2015, 2018 Landsat OLI remote sensing images were used as the main data sources, and the landscape dynamic analysis, landscape pattern index and mathematical statistics were used to analyze the evolution characteristics and driving factors of wetland landscape in Hainan Island during the past 30 years. The results indicated that: (1) During 1990-2018, the total area of wetlands had been increased gradually, and the comprehensive dynamic change of wetland was more dramatic before 2005, and it slowed down after 2005. In 2018, the total area of the wetland reached 1337.57 km2, with a net increase of 393.21 km2 and an annual change rate of 14.04 km2∙a-1. (2) During the study period, artificial wetland gradually increased while the natural wetlands gradually degraded. The aquiculture farms and library pond had the highest proportion of increase at 268.53 km2 and 179.46 km2, while lagoon had the highest proportion of land degraded at 86.65 km2, compared with salt pans and mangrove area stayed consistently. (3) The overall wetland landscape of Hainan Island showed that the change characteristics of increasing fragmentation, decreasing connectivity and complex patch shape. Artificial wetlands such as library ponds and aquiculture farms showed great changes, while natural wetlands showed little changes. And (4) the total population, urban population, GDP and gross fishery production of the study area were key factors affecting the change of wetland landscape, and the main driving factors leading to the decrease of natural wetlands, the increase of artificial wetlands and the change and fragmentation of wetland landscape diversity in the study area. This study could provide important reference for the future protection, utilization and planning of wetland resources in Hainan Island.

Key words: Hainan Island, wetland landscape pattern, temporal and spatial dynamic change, remote sensing, driving factors

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