Optimization of spatial prediction and sampling strategy of site contamination based on Thiessen polygon coupling interpolation

Environmental regulation, land use efficiency and industrial structure upgrading: Test analysis based on spatial durbin model and threshold effect

“…Both ER and LUE have certain spatial and temporal dynamics [ 50 ]. For the sake of test the robustness of the estimated results, the ER measures were replaced with ER+ 1 according to the measures of environmental regulation in the study by Guo F and Gao S [ 114 ] et al Replace the LUE measure, According to the measurement index of LUE [ 115 ] in the people on the impact of new urbanization on LUE, Replace it with LUE+ 1 .…”

“…For example, for the positive index of per capita GDP, the linear relationship is fitted according to its development tendency, and the linear interpolation method[ 107 ] is used to complete the missing value of some years. For the missing values of the plug-in type in distinct regions, the multiple interpolation method or the establishment of a logistic regression model are mainly used for prediction and filling[ 50 ]. For the continuous missing data, the mean value is utilized to supplement.…”

“…Since the 1980s, scholars have found that as environmental standards in developed countries continue to tighten, pollution-intensive industries in Western Europe, North America, Japan, and other developed countries have flowed to developing countries, indicating that stricter ER policies have a dis-incentive effect on pollution-intensive enterprises, and these enterprises prefer regions with lower environmental regulation intensity [ 49 ]. This is mainly because regions with greater development pressure are more willing to relax environmental regulations, and in the absence of sufficient factor endowments and financial guarantees, they tend to choose complementary competition strategies with developed regions, adopting a remedial governance strategy of “pollution first, treatment later"[ 50 ].…”