JOURNAL OF NATURAL RESOURCES ›› 2016, Vol. 31 ›› Issue (11): 1938-1948.doi: 10.11849/zrzyxb.20160056

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Research on Plant Species Diversity in Estuarine Wetland of Hangzhou Bay Based on the GF-1 Satellite and in Situ Data

CHENG Qian1, CHEN Yi-fei1, LI Shun-da1, XU Jun-feng2   

  1. 1. College of Tourism and City, Zhejiang Gongshang University, Hangzhou 310018, China;
    2. Institute of Remote Sensing & Earth Science, Hangzhou Normal University, Hangzhou 311121, China
  • Received:2016-01-13 Revised:2016-08-23 Online:2016-11-20 Published:2016-11-20
  • Supported by:
    National Natural Science Foundation of China, No.41271417; The High Resolution Earth Observation Systems of National Science and Technology Major Projects”, No.05-Y30B02-9001-13/15-4; Natural Science Foundation of Zhejiang, No.LY12D01004

Abstract: Plant species diversity monitoring in estuarine wetland using remote sensing has important significance for ecological environment protection. It is very difficult to accurately retrieve the plant species diversity of wetland by remote sensing. The in situ data in Hangzhou Bay wetland were measured in this study. The plant species diversity indexes, including the species richness index and Simpson index were used to analyze the wetland plant species diversity. The GF-1 (High Resolution) satellite image, combined with variation function was used to analyze the spatial heterogeneity of plant species diversity in the region, and to explore the optimal scale of remote sensing plant species diversity monitoring. The correlation of the standard deviation of normalized difference vegetation index (NDVI) of GF-1 image and the plant diversity index was analyzed and the remote sensing model of plant species diversity in estuarine wetland of Hangzhou Bay was constructed. The current findings showed that the optimal scale of monitoring wetland plant species diversity at Hangzhou Bay was 19×19 pixel of GF-1 image. The retrieved wetland plant species diversity level of Hangzhou Bay using the remote sensing model with the optimal scale was consistent with the actual situation. Studies have shown that GF-1 satellite can be used to monitor the plant species diversity at Hangzhou Bay estuarine wetland quickly and effectively.

Key words: estuarine wetland, GF-1, Hangzhou bay, plant species diversity, semi-variant function

CLC Number: 

  • Q948