Study on The Influence of Direct Ground Liquid CO₂ Injection on Soil Chemical Properties in Subsidence Areas under Shallow Buried Geological Conditions

Table 1

Number correspondence table [24].

Sample number	Sample category	Sampling time	Number
#1 (P1)	Air-dried sample F	Before infusion (D1)	P1FD1
		1 day after infusion (D2)	P1FD2
		5 days after infusion (D3)	P1FD3
	Fresh sample X	Before infusion (D1)	P1XD1
		1 day after infusion (D2)	P1XD2
		5 days after infusion (D3)	P1XD3
#2 (P2)	Air-dried sample F	Before infusion (D1)	P2FD1
		1 day after infusion (D2)	P2FD2
		5 days after infusion (D3)	P2FD3
	Fresh sample X	Before infusion (D1)	P2XD1
		1 day after infusion (D2)	P2XD2
		5 days after infusion (D3)	P2XD3
#3 (P3)	Air-dried sample F	Before infusion (D1)	P3FD1
		1 day after infusion (D2)	P3FD2
		5 days after infusion (D3)	P3FD3
	Fresh sample X	Before infusion (D1)	P3XD1
		1 day after infusion (D2)	P3XD2
		5 days after infusion (D3)	P3XD3
#4 (P4)	Air-dried sample F	Before infusion (D1)	P4FD1
		1 day after infusion (D2)	P4FD2
		5 days after infusion (D3)	P4FD3
	Fresh sample X	Before infusion (D1)	P4XD1
		1 day after infusion (D2)	P4FD2
		5 days after infusion (D3)	P4FD3
#5 (P5)	Air-dried sample F	Before infusion (D1)	P5FD1
		1 day after infusion (D2)	P5FD2
		5 days after infusion (D3)	P5FD3
	Fresh sample X	Before infusion (D1)	P5XD1
		1 day after infusion (D2)	P5XD2
		5 days after infusion (D3)	P5XD3