hi, I am working on a metagenomics project. The company provides me one table which says like this....

***********ALPHA DIVERSITY STATS-----KRUSKAL WALLIS PAIRWISE COMPARISON***********

Group1              Group2                       Chao1        Goods coverage      observed OTUs       FaithsPD     Shannon     Simpson    
Cond_4Day       Cond_7Day               1.80              0.263                       0.180                       0.881            0.456         0.655
Cond_4Day       control                       0.034             1.010                      0.034                        0.480           0.290         0.290
Cond_7Day       control                       0.327             0.439                      0.327                       0.462            0.624          0.462

I am new to statistics and could not able to understand the result. I already learned about every measure of alpha diversity(chao1, goods coverage, etc).but could not able link this with Kruskal Wallis pairwise comparison. If anybody could help me to understand this, I would be highly grateful.

Thanks