生态环境学报Issue(6)：965-971,7.DOI:10.16258/j.cnki.1674-5906.2015.06.009
不同景观格局的红树林湿地生态系统质量比较研究--以广西北部湾地区为例
Comparative Study of Wetland Ecosystem Quality in Different Landscape Pattern of Mangroves：A Case of Beibuwan Region in Guangxi Province
摘要
Abstract
It has the obvious difference for the quality of wetland ecosystem in different landscape pattern of mangroves. In order to find out the phenetic relationships between landscape pattern indexes and quality of wetland ecosystem, and contrast the quality of wetland ecosystem in different landscape pattern of mangroves, it chooses the eastern and western region of Guangxi Beibuwan area as the area of comparative study. With the support of ENVI 4.8 software platform, and combine the survey date from field sample, to interpretation the remote sensing images in different periods, it obtains the spatial distribution pattern and the ecosystem quality parameters of the mangroves in two regions. With the support of the Fragstats 4.0 and ARCGIS 10.0 software platform, it comparatively analyzes the difference in the landscape pattern and plant community, benthic animals, water environmental quality between the two regions. The results show that, (1) From the point of landscape index, the following indexes of the eastern region are higher than in the western region: NP (387 and 379), PD (192.20 and 72.17), ED (215.85 and 137.28), LSI (14.92 and 13.02), SHDI (1.36 and 1.15), the following indexes in the eastern region are lower than in the western region: TA (525.15 and 201.36), CONTAG (66.48 and 55.57). (2) From the point of landscape structure characteristics, the diversity of the community (0.94 and 0.51) and richness in the eastern region are higher than in the western region. On the horizontal structure, the density is smaller (0.84 Plants·m-2), and the basal diameter is bigger (6.55 cm), the crown diameter is bigger (7.16 m2) in the eastern region. The density is bigger (1.00 Plants·m-2),the basal diameter is smaller (6.43 cm), and the crown diameter is smaller (6.58 m2) in the western region. On the vertical structure, the average plant height and seedling height in the eastern region (1.39 m and 0.23 m) are bigger than in the western region (1.10 m and 0.14 m). (3) The zoobenthos number, weight and biomass in the western region are bigger than in the eastern region. (4) From the point of the water environment quality, the indexes of transparency, DO, chlorophyll a and salts are better in the western region, but other indexes are poorer in the western region. (5) To a certain extent, the changes of landscape pattern index can reflect the changes of ecosystem quality. In comparison of the eastern region, landscape pattern space is bigger, connectivity is better, and fragmentation degree is lower. The ecosystem quality characteristics show that: the benthic environment is higher, but the mangrove community environment is poorer, and water environment quality is poorer in general.关键词
景观格局/生态系统质量/红树林湿地/广西北部湾地区Key words
landscape pattern/ecosystem quality/mangrove wetland/Guangxi Beibuwan region分类
资源环境引用本文复制引用
陈永林,孙永光,谢炳庚,康婧,李晓青..不同景观格局的红树林湿地生态系统质量比较研究--以广西北部湾地区为例[J].生态环境学报,2015,(6):965-971,7.基金项目
国家自然科学基金（41201179；41376120）；海洋公益行行业科研专项（201405007；201505012；201005010）；青岛市博士后研究人员应用研究项目（QDBSH2014007)；国家海洋局海域管理技术重点实验室开放基金（201401）；华东师范大学河口海岸学国家重点实验室开放课题 （）
