3.2 Statistical Analysis
Using
the Mann-Kendall mutation test to detect the change-point year of data;
using the Mann-Kendall trend method to detect whether the data series
had trend change in time series(Mann 1945; Kendall and Gibbons 1990).
Exert correlation analysis to investigate the relationship between water
area and impact factor, which includes net outflow of the lake, sediment
discharge, rainfall, and temperature. At last, the cross-tabulation
matrix and change in terms of percent of the landscape to assess the
total change of land categories(Pontius, Shusas, and McEachern 2004).
Based on the image comparison results, discussing the characteristics
and influencing mechanism of water area change in Poyang Lake.