Water Richness Zoning and Evaluation of the Coal Seam Roof Aquifer Based on AHP and Multisource Geological Information Fusion

Table 1

Scale and meaning of judgment matrix.

Scale	Meaning
1	Compared with the two factors, they have the same importance
3	Compared with the two factors, the former is slightly more important than the latter
5	Compared with the two factors, the former is obviously more important than the latter
7	Compared with two factors, the former is strongly more important than the latter
9	Compared with two factors, the former is extremely more important than the latter
2, 4, 6, 8	The intermediate value of the above adjacent judgments
Reciprocal	If the ratio of importance of factor to factor is , then the ratio of importance of factor to factor is