Tables with captions Table 1. Changes in the area of resource sites by regions in 1950, 1979, and 2010 (unit = 1 km2). Urban regionsForestsWetlandsFreshwater sitesCash crop fieldsTotals195019792010?195019792010195019792010195019792010195019792010Shanghai181711201 320 5101,4751,3301,1301,0861,0148652,780 2,681 2,516 Suzhou227218146935 850 7732,7242,6362,1991,0521,0168724,938 4,720 3,990 Wuxi-Changzhou1,0841,0748141,031 888 7642,6272,5492,1925995825195,341 5,093 4,289 Zhenjiang-Yangzhou*751758407220 185 1551,7541,7061,5474814684413,206 3,117 2,550 Nanjing*954952554 336 288 2472,2042,1121,8997877667274,281 4,118 3,427 Taizhou-Nantong*17221131 158 1911,0009728691,6371,6311,5762,785 2,783 2,637 Huzhou2,7682,7602,565 639  513 4111,9811,9411,8472512342145,639 5,448 5,037 Jiaxing948640 229  173 1309098848009239148862,155 2,057 1,856 Hangzhou-Ningbo*3,1423,1532,940272 399 5861,4911,4421,2896936816275,598 5,675 5,442 Xuancheng*5,9555,9575,493373 309 2562,0242,0322,0067397317129,091 9,029 8,467 Totals15,010 14,997 12,971 4,370 4,083 4,02318,18917,60415,7788,2488,0377,43945,817 44,721 40,211  Note: Each value was calculated based on the number of resource sites within the sample boundaries of each regional-level city (above ?urban regions? column). The right-side column ?Totals? are summation of the cells of forests, wetlands, freshwater, and cash crop sites for each year. * Only parts of Yangzhou, Nanjing, Taizhou, Nantong, Hangzhou, Ningbo, and Xuancheng were included for the calculation, since the outer boundary of the defined region does not cover all of these cities? administrative areas. Thus, the size of resource sites in these cities is likely to be underestimated. ? Wetland data in 1950 was not available. Thus, the trend between 1950 and 1979 was linearly extrapolated based on the changes between 1979 and 2010, although this assumption is likely to underestimate the size of wetlands in 1950. Table 2. Regression result: Significant factors associated with resource losses. Dependent variable: % resource lossRegression coefficients Standardized coefficientsP > |t|Moran?s I13.530.2820.013Urban spread0.0250.2860.001Soil texture (silt)4.670.2190.006Population growth-1.07-0.1500.043Note: Correlation coefficients of each listed variable were analyzed using multiple regression analysis with backward elimination with the percentage variance in resource losses. The four variables were retained at 5% significance level. Initial independent variables were per km2 lengths of expressways (km/km2), distances to four largest cities (km), number of towns within 50 km distance from the center of each sampling boundary, density of industrial enterprises, presence of land subsidence, presence of timber or mining sites, average land slopes (degrees), soil groups (clay/silt/sand; above), natural logarithm of total population (2000), row-standardized Moran?s I of urban spread patterns (above), relative increases in urban spread (above), and population growth ratio (total population in 2005 divided by total population in 1997; above). The above regression model is statistically significant, F = 17.5, N = 94, R2 = 0.35, P < 0.0001.