A Synthetic Study of Evergreen and Broadleaf Trees in Shunhuang Mountain of Hunan Province:IV.Study of Species Diversity

Bio-diversity is one of the three important fields in ecology research;species diversity acts as an important role in bio-diversity research because it is not only the carrier of genic but also the core part of ecology system.In this article we take green broadleaf forest at Shunhuang Mount in Hunan Province for example and study the species diversity based on the information by cumulating 3 habitat grads,33 middle spots and 99 small spots and by adopting 7 measuring formulas.The result shows that: the species diversity of green broad-leaf forest at Shunhuang Mount is abundant and the index of abundance is 11.006;the index of information is 0.298 4.There are four indexes or coefficients in diversity index,which can efficiently reflect the characteristics of bio-diversity of green broad-leaf forest,and are the Gleason's and Shanmon-Wiener's index of abundance index,the coefficient of community and ED.