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Table 4.

Critical factors hindering regional water security from 2006 to 2015.

RegionsCritical factors
China Precipitation, Water production modulus, Ecological water requirement satisfaction rate, Wetland area proportion, Urban sewage reuse rate 
Beijing Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Wetland area proportion, Sewage treatment proportion of GDP 
Tianjin Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, River water quality satisfaction rate, COD level in water, Run-off depth, Forest coverage, Urban sewage reuse rate 
Hebei Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Water supply pipe length per capita 
Shanxi Water resources per capita, Precipitation, Water production modulus, River water quality satisfaction rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Wetland area proportion, Forest coverage, Water supply pipe length per capita, Urban sewage reuse rate 
Inner Mongolia Precipitation, Water production modulus, Run-off depth, Wetland area proportion, Urban sewage reuse rate 
Liaoning Water resources per capita, Water production modulus, COD level in water, Urban sewage reuse rate 
Jilin Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Effective irrigation area proportion, Urban sewage reuse rate 
Heilongjiang Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Urban sewage reuse rate 
Shanghai Water resources per capita, Water resources utilization rate, COD level in water, Ammonia-nitrogen level in water, Forest coverage, Sewage treatment proportion of GDP, Urban sewage reuse rate 
Jiangsu Water resources per capita, Water resources utilization rate, River water quality satisfaction rate, COD level in water, Forest coverage 
Zhejiang Urban sewage reuse rate 
Anhui Urban sewage reuse rate 
Fujian Urban sewage reuse rate 
Jiangxi Effective irrigation area proportion, Urban sewage reuse rate 
Shandong Water resources per capita, Water production modulus, Water resources utilization rate, COD level in water, Run-off depth, Forest coverage, Urban sewage reuse rate 
Henan Water resources per capita, Water production modulus, Water resources utilization rate, Run-off depth, Wetland area proportion, Water supply pipe length per capita, Effective irrigation area proportion, Urban sewage reuse rate 
Hubei Effective irrigation area proportion, Urban sewage reuse rate 
Hunan Effective irrigation area proportion, Urban sewage reuse rate, Population affected by floods 
Guangdong Fertilizer use per unit irrigated farmland area, Sewage treatment proportion of GDP, Urban sewage reuse rate 
Guangxi Fertilizer use per unit irrigated farmland area, Wetland area proportion, Effective irrigation area proportion, Urban sewage reuse rate 
Hainan Fertilizer use per unit irrigated farmland area, Effective irrigation area proportion, Urban sewage reuse rate, Population affected by floods 
Chongqing Fertilizer use per unit irrigated farmland area, Wetland area proportion, Effective irrigation area proportion, Urban sewage reuse rate 
Sichuan Wetland area proportion, Effective irrigation area proportion 
Guizhou Wetland area proportion, Effective irrigation area proportion 
Yunnan Wetland area proportion, Water supply pipe length per capita, Effective irrigation area proportion 
Tibet Precipitation, Water production modulus, Ecological water requirement satisfaction rate, Forest coverage, Water use per 10,000 yuan of GDP, Effective utilization coefficient of irrigated water use, Water use per 10,000 yuan of added industrial output, Urban sewage treatment rate, Urban sewage reuse rate 
Shaanxi Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Wetland area proportion, Water supply pipe length per capita, Effective irrigation area proportion, Effective utilization coefficient of irrigated water use 
Gansu Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Wetland area proportion, Forest coverage, Water supply pipe length per capita, Effective irrigation area proportion, Urban sewage reuse rate 
Qinghai Precipitation, Water production modulus, Run-off depth, Urban sewage reuse rate 
Ningxia Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, River water quality satisfaction rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Forest coverage, Total water use per capita, Water use per 10,000 yuan of GDP, Effective utilization coefficient of irrigated water use 
Xinjiang Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Wetland area proportion, Forest coverage, Total water use per capita, Water use per 10,000 yuan of GDP, Urban sewage reuse rate 
RegionsCritical factors
China Precipitation, Water production modulus, Ecological water requirement satisfaction rate, Wetland area proportion, Urban sewage reuse rate 
Beijing Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Wetland area proportion, Sewage treatment proportion of GDP 
Tianjin Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, River water quality satisfaction rate, COD level in water, Run-off depth, Forest coverage, Urban sewage reuse rate 
Hebei Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Water supply pipe length per capita 
Shanxi Water resources per capita, Precipitation, Water production modulus, River water quality satisfaction rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Wetland area proportion, Forest coverage, Water supply pipe length per capita, Urban sewage reuse rate 
Inner Mongolia Precipitation, Water production modulus, Run-off depth, Wetland area proportion, Urban sewage reuse rate 
Liaoning Water resources per capita, Water production modulus, COD level in water, Urban sewage reuse rate 
Jilin Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Effective irrigation area proportion, Urban sewage reuse rate 
Heilongjiang Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Urban sewage reuse rate 
Shanghai Water resources per capita, Water resources utilization rate, COD level in water, Ammonia-nitrogen level in water, Forest coverage, Sewage treatment proportion of GDP, Urban sewage reuse rate 
Jiangsu Water resources per capita, Water resources utilization rate, River water quality satisfaction rate, COD level in water, Forest coverage 
Zhejiang Urban sewage reuse rate 
Anhui Urban sewage reuse rate 
Fujian Urban sewage reuse rate 
Jiangxi Effective irrigation area proportion, Urban sewage reuse rate 
Shandong Water resources per capita, Water production modulus, Water resources utilization rate, COD level in water, Run-off depth, Forest coverage, Urban sewage reuse rate 
Henan Water resources per capita, Water production modulus, Water resources utilization rate, Run-off depth, Wetland area proportion, Water supply pipe length per capita, Effective irrigation area proportion, Urban sewage reuse rate 
Hubei Effective irrigation area proportion, Urban sewage reuse rate 
Hunan Effective irrigation area proportion, Urban sewage reuse rate, Population affected by floods 
Guangdong Fertilizer use per unit irrigated farmland area, Sewage treatment proportion of GDP, Urban sewage reuse rate 
Guangxi Fertilizer use per unit irrigated farmland area, Wetland area proportion, Effective irrigation area proportion, Urban sewage reuse rate 
Hainan Fertilizer use per unit irrigated farmland area, Effective irrigation area proportion, Urban sewage reuse rate, Population affected by floods 
Chongqing Fertilizer use per unit irrigated farmland area, Wetland area proportion, Effective irrigation area proportion, Urban sewage reuse rate 
Sichuan Wetland area proportion, Effective irrigation area proportion 
Guizhou Wetland area proportion, Effective irrigation area proportion 
Yunnan Wetland area proportion, Water supply pipe length per capita, Effective irrigation area proportion 
Tibet Precipitation, Water production modulus, Ecological water requirement satisfaction rate, Forest coverage, Water use per 10,000 yuan of GDP, Effective utilization coefficient of irrigated water use, Water use per 10,000 yuan of added industrial output, Urban sewage treatment rate, Urban sewage reuse rate 
Shaanxi Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Wetland area proportion, Water supply pipe length per capita, Effective irrigation area proportion, Effective utilization coefficient of irrigated water use 
Gansu Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Wetland area proportion, Forest coverage, Water supply pipe length per capita, Effective irrigation area proportion, Urban sewage reuse rate 
Qinghai Precipitation, Water production modulus, Run-off depth, Urban sewage reuse rate 
Ningxia Water resources per capita, Precipitation, Water production modulus, Water resources utilization rate, River water quality satisfaction rate, COD level in water, Ammonia-nitrogen level in water, Run-off depth, Forest coverage, Total water use per capita, Water use per 10,000 yuan of GDP, Effective utilization coefficient of irrigated water use 
Xinjiang Precipitation, Water production modulus, Run-off depth, Ecological water requirement satisfaction rate, Wetland area proportion, Forest coverage, Total water use per capita, Water use per 10,000 yuan of GDP, Urban sewage reuse rate 
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