Abstract: The investigation on the calcareous soil’s faunal diversity in 5 different habitats of Yongzhou, Hunan Province showed that a total of 2 024 soil animals were observed, which belonged to 4 phylums, 10 classes, and 30 orders. The dominant groups were nematoda, acarina, and collembola, accounted for 66.10% of the total, and the common groups were of 9 sorts, occupying 27.17% of the total. The test habitats had higher similarity in soil faunal horizontal distribution, and the similarity level was more significant between nursery garden and Chinese fir forest,nursery garden and cypress forest, and nursery garden and wasteland. As for the vertical distribution, only nursery garden had clear layers, and all habitats had an obvious surface aggregation of soil animals. The diversity and evenness of soil faunese in nursery garden, Chinese fir forest, and cypress forest were consistent with each other.

Key words: Water supply from forested land, Water consumption by forest trees, Forest evapotranspiration, Water consumption character, Water balance, Protection forest