RESOURCES AND ENVIRONMENT IN THE YANGTZE BASIN >> 2015, Vol. 24 >> Issue (11): 1891-1897.doi: 10.11870/cjlyzyyhj201511012

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FOREST PHENOLOGICAL REGIONAL DIFFERENTIATION BASED ON TIME SERIES OF MODIS DATA IN GUIZHOU PROVINCE

ZHANG Yan-bing, TAO Jian-bin, LIU Peng-cheng, XU Jing-jing   

  1. College of Urban and Environmental Science, Central China Normal University, Wuhan 430079, China
  • Received:2015-02-25 Revised:2015-05-20 Online:2015-11-20

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Abstract: Forest phenology as an important indicator of climate and environment change, for the land vegetation ecological environment monitoring is a great significance. This study time series MODIS NDVI (normalized difference vegetation index)data is 2011 to 2013, through Savizky-Golay (S-G)filter smoothing and dynamic threshold method, to extract the forest phenology four parameters that the start of growing season (SOS)、the end of growing season (EOS)、the length of growing season (LOS) and the amplitude of growing season (AOS) in Guizhou Province in 2012. and then, using the extracted Phenological parameters with longitude, latitude and altitude do correlation analysis. This study research shows that:(1) Overall, forest phenology parameters with latitude are weakly Correlation in Guizhou Province, therefore,forest phenological latitude zonal regional differentiation was not significant in Guizhou province;(2) Forest phenology of Guizhou Province the start of growing season and the length of growing season are extremely significant associated with longitude, the end of growing season of forest phenology is low correlation with longitude, Overall, forest phenological parameters land and sea (longitude) zonal regional differentiation is significant in Guizhou Province;(3) Forest phenology of Guizhou Province the start of growing season and the end of growing season are significantly associated with altitude, the length of growing season of forest phenology is extremely significant correlation with altutide,therefore,the forest phenological parameters vertical(altutide)zonal regional differentiation is very significant in Guizhou Province.

Key words: Guizhou Province, MODIS NDVI, forest phenological parameters, regional differentiation

CLC Number: 

  • S717
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