The MODIS data has high temporal resolution but rather coarse spatial resolution, therefore, the MODIS-EVI data,
which was more sensitive towards the phonological information than the MODIS-NDVI data, was chosen to build up the
time series of studying area, in order to monitor and depict the original phonological characteristics of land cover.
Moreover, the DEM, SLOPE, Homogeneity data, which all represent the differences of geographical distribution, and
LST data, which represents the differences of earth-atmosphere interaction, were combined as ancillary data together
with MODIS-EVI to build a decision tree. After the classification validation, the overall accuracy attainted to 71.9% and
Kappa coefficient is 0.66. Therefore, it is proved that the land cover classification with high accuracy but low cost in
regional scale is possible.
KEYWORDS: Climate change, Vegetation, Climatology, Temperature metrology, Data modeling, Remote sensing, Environmental sensing, Data acquisition, Ecology, Data centers
The temporal and spatial characteristics of climate change in China during the recent 100 years were analyzed using
CRU05 climate data. We studied the impacts of climate change during the recent 100 years on vegetation ecological
zones in China by using Holdridge Life Zone Classification Model and Center-of-Gravity Model. It is concluded that the
precipitation and temperature increased and climate became wetter and warmer in most areas of China during the study
period with an exception in the subtropical area to the south of Qinhuai River where climate changed toward more
precipitation and lower temperature (wetter and colder). The climate change during recent 100 years had strong impacts
on vegetation ecological zones in China. It was shown by the variations of spatial distributions of vegetation ecological
zoning in three time periods in China and the space displacements of the centers of the gravity that the boreal type and
cool temperate zone type in the vegetation ecological zone in China had expanded toward south; wet, moist, and rain
forest types had moved forward to the west; the climate change in China during the recent 100 years had improved
environmental quality and made the environment in China more suitable for plants to live and grow.
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