Construction of Ecological Environment Information System Based on Big Data: A Case Study on Dongting Lake Ecological Area

Table 2

National ecological environment monitoring network systems established by the Ministry of Ecology and Environment [26].

Monitoring category	Monitoring points	Quantity
Atmospheric environment	Urban monitoring point	1436
Freshwater environment	Precipitation monitoring point	1000
	Surface water quality section (point)	1940
	Centralized drinking water source monitoring section (point)	906
Seawater environment	National quality control monitoring point	1649
Acoustic environment	Urban monitoring point	About 80 000
Ionizing radiation environment	Environmental ionizing radiation monitoring point	1410
Electromagnetic radiation environment	Environmental electromagnetic radiation monitoring point	44
Ecological environment	Ecological environmental quality monitoring point	2583