Journal of Natural Resources, Volume. 35, Issue 4, 937(2020)
Study on the relationship between precipitation and urban atmospheric environment: Cases of 113 key environmental protection cities
Figures & Tables(9)
Fig. 1. Spatial distribution of key environmental protection cities
Fig. 4. Dynamic variation diagram of six kinds of urban clustering distribution
Fig. 5. Linear fitting equation of precipitation and atmospheric pollution eigenvalues
Table 1. Statistical characteristic values of air pollutants and precipitation in 113 cities
View tableView in ArticleTable 1. Statistical characteristic values of air pollutants and precipitation in 113 cities
特征变量 SO2
/(μg/m3)NO2
/(μg/m3)PM10
/(μg/m3)CO
/(mg/m3)O3
/(μg/m3)PM2.5
/(μg/m3)P
/mm平均值 20.16 37.73 83.48 1.86 160.94 48.58 937.93 中位数 18.00 38.00 80.00 1.60 160.00 48.00 813.50 方差 142.01 109.43 25.55 0.559 714.15 217.93 236936.79 最小值 6.00 12.00 37.00 0.80 105.00 20.00 108.90 最大值 79.00 59.00 154.00 4.10 218.00 86.00 2256.50
Table 2. Statistical test of six classifications
View tableView in ArticleTable 2. Statistical test of six classifications
变量 分类数 五 六 七 八 九 十 SO2 18.41** 15.40** 31.92** 27.21** 24.62** 21.75** NO2 42.34** 36.35** 30.17** 26.99** 23.62** 23.28** PM10 84.72** 81.70** 72.42* 64.18** 57.59** 51.29** CO 24.59** 32.63** 63.37** 54.31** 49.75** 47.63** O3 55.63** 46.15** 39.18* 33.27** 29.02** 25.99** PM2.5 70.36** 69.51** 61.91** 54.95** 48.95** 43.11** P 7.78** 6.37** 11.27** 11.17** 32.30* 28.55**
Table 3. Normality test and significance analysis
View tableView in ArticleTable 3. Normality test and significance analysis
SO2 NO2 PM10 CO O3 PM2.5 P 个案数 113 113 113 113 113 113 113 最极端差值 绝对 0.15 0.04 0.11 0.14 0.07 0.06 0.12 正 0.15 0.04 0.11 0.14 0.07 0.06 0.12 负 -0.12 -0.04 -0.07 -0.09 -0.06 -0.03 -0.07 检验统计 0.15 0.04 0.11 0.14 0.07 0.06 0.12 渐近显著性（双尾） 0 0.2 0.001 0 0.2 0.2 0.0001 相关系数 ρ -0.62** -0.32** -0.57** -0.70** -0.24* -0.33** 1
Table 4. Linear regression results and fitting tests
View tableView in ArticleTable 4. Linear regression results and fitting tests
SO2 NO2 PM10 CO O3 PM2.5 拟合系数 T 检验拟合系数 T 检验拟合系数 T 检验拟合系数 T 检验拟合系数 T 检验拟合系数 T 检验b 32.89 16.05** 44.95 21.66** 2.74 24.34** 112.08 19.11** 59.59 34.84** 174.08 20.13** a -0.02 -6.68** -0.01 -3.10** -0.01 -6.07** -0.03 -5.58** -0.01 -3.38** -0.01 -3.19** R 20.28 0.13 0.33 0.37 0.15 0.06
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Hai XUE, Fan ZHANG. Study on the relationship between precipitation and urban atmospheric environment: Cases of 113 key environmental protection cities[J]. Journal of Natural Resources, 2020, 35(4): 937
Paper Information
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Received: Jan. 21, 2019
Accepted: --
Published Online: Oct. 17, 2020
The Author Email: XUE Hai (xuehai@ncwu.edu.cn)
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