Assessing growing season beginning and end dates and their relation to climate in Taiwan using satellite data

Chung Te Chang, Teng Chiu Lin, Su Fen Wang, Matthew A. Vadeboncoeur

Research output: Contribution to journalArticle

20 Citations (Scopus)

Abstract

Due to the close relationship between climate and plant phenology, changes in plant phenological patterns have been used as a surrogate of climate change. We analysed Moderate Resolution Imaging Spectroradiometer (MODIS) images to investigate the onset, offset and length of growing season, as well as spatial and inter-annual patterns of Normalized Difference Vegetation Index (NDVI) across six types of vegetation/land use in Taiwan. Regression models indicate that temperature was moderately to strongly related to NDVI for each of the six vegetation/ land-use types (coefficients of determination (R2) = 0.45-0.86). There was a 1-2 month lag time between changes in temperature and NDVI in the forests that are distributed in mid- to high-elevation areas, but not in low-elevation unirrigated fields, paddy fields and urban areas. The relationship between precipitation and changes in NDVI was only significant for unirrigated fields and urban areas (R2 = 0.37-0.43). Growing season ended considerably earlier at low elevations than at high elevations, possibly because of the earlier start and more severe dry period in low-elevation areas, such that the length of the growing season was longer in the forests than in the unirrigated fields, paddy fields and urban areas.

Original languageEnglish
Pages (from-to)5035-5058
Number of pages24
JournalInternational Journal of Remote Sensing
Volume32
Issue number18
DOIs
Publication statusPublished - 2011 Sep

ASJC Scopus subject areas

  • Earth and Planetary Sciences(all)

Fingerprint Dive into the research topics of 'Assessing growing season beginning and end dates and their relation to climate in Taiwan using satellite data'. Together they form a unique fingerprint.

  • Cite this