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Please use this identifier to cite or link to this item:
http://ir.ncue.edu.tw/ir/handle/987654321/16173
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| Title: | Assessing Growing Season Beginning and End Dates and Their Relation to Climate in Taiwan Using Satellite Data |
| Authors: | Chang, Chung-Te;Lin, Teng-Chiu;Wang, Su-Fen;Vadeboncoeurc, Matthew A. |
| Contributors: | 地理學系 |
| Date: | 2011-09
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| Issue Date: | 2013-04-22T08:15:36Z
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| Publisher: | Taylor&Francis |
| 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 (R 2) = 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 (R 2 = 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. |
| Relation: | International Journal of Remote Sensing, 32(18): 5035-5058 |
| Appears in Collections: | [地理學系] 期刊論文
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