Fig. 7. (a) The shifts of habitat population centroid and(b) the percent
contribution of the environment variables in 6 basins.
The
result shows that NDVI plays a great role in Yangtze River basin, Huaihe
River Basin, Southeast Basin and Pearl River Basin, which the percent
contribution for distribution is 43.9%, 48.6%, 49.1%, and 43.5%
respectively. In these regions, the food is the constraint of the
distribution.
LUCC
is another constraint accounting for 30.9%, 23.8% and 19.6%
importance respectively in
Haihe
River Basin, Yellow River basin
and
Pearl River basin. The human activity plays a important role in
distribution of these regions. Alt is a important variable in Yangtze
River basin and Pearl River basin accounting for 34.9% and 13.7%,
respectively. These areas have wide range of elevation.
4.1.2 How does climate change influence the climate
zones?
The habitats change mostly in the 3 climate zones (STZ, MSZ, MTZ). The
area of habitat has a significant decrease in these 3 climate zones in
future. The habitat will loss about 61247\(\text{km}^{2}\)accounting for 7.51% of MSZ total habitat area. The habitat area of MTZ
will reduce 11.43% about 27955 \(\text{km}^{2}\) in future. The habitat
area will decrease 6499 \(\text{km}^{2}\) which is about 2.17% of total
habitat area of STZ.