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Title: Study on the trend of vegetation phenological change and its response to climate change in changbai mountains
Authors: Wang, Y
Hou, G
Zhao, J
Chen, T
Zhang, H
Keywords: Changbai mountains
Climate zones
Gimms ndvi
Onnet dale of crccn-up
Onset date of ckxmancy
Issue Date: 2015
Publisher: Parlar Scientific Publications
Source: Fresenius environmental bulletin, 2015, v. 24, no. 6A, p. 2193-2202 How to cite?
Journal: Fresenius environmental bulletin 
Abstract: As one of the sensitive indicators in response to climate change, plant phonological change is usually used as an important component of dynamic vegetation models to reflcct the dynamic of carbon and water exchange between the land surface and the atmosphere. The phcnologjcal change in large scalc can not only reflcct the seasonal variation patterns of vegetation, but also be an indicator of global climate changc. In this study, using the biweekly NOAA/G1MMS NDVI (Normalized Difference Vegetation Index) and meteorological data, we employed the maximum rate of change to extract the phonological changc of the vegetation types in Changbai Mountains during 1982-2006, and investigated the possible impact of recent climate change on growing season in three climate zones based on Jingynn Zheng's climatic regionalization. The results were as follows: The onset date of green-up for the vegetation in warm temperate zone was in late April and the onset date of dormancy ended in late October. The length of growing season (LOS) for the vegetation types became shorter with increasing latitude The earlier onset dates of grecn-up for all vegetation types were found in three climate zones during 1982-2006, ranging from 0.642 day/yr in Zone 1,0.429 day/yr in Zone II, to 0.371 day/yr in Zone II, which indicates that tle earlier onset dates of grecn-up were significant with a longitude trend of vegetation types. The LOS of the three climate zones became longer during 1982-2006, but the lengthening of growing season demonstrated in different ways in lite three climate zones. Temperature had stronger effect on the phenological change. The onset date of grecn-up was earlier and the corresponding temperature threshold was higher in the low latitude, and the LOS was in significant correlation with the accumulated temperature above 10°C in three climate zones.
ISSN: 1018-4619
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