Habitat Community Characteristics ofPinella yaoluopingensis, An Endemic Species in Anhui
To obtain the distribution status and habitat community characteristics ofPinella yaoluopingensis, an endemic species in Anhui, as well as to provide the scientific basis for the utilization and protection ofPinella yaoluopingensis,based on the investigation, the habitat community characteristics ofPinella yaoluopingensis inYaoluoping nature reserve in Anhui were analyzed. The results showed that: the distribution range ofPinella yaoluopingensis was narrow in Yaoluoping nature reserve, which were mainly distributed in an open forest in the range of 1000~1200 m above sea level (canopy density: 0.4~0.6, slope: 2°~10°); there were a total of 117 species belonging to 91 genera of 55 families in thePinella yaoluopingensis communities, the diversities of family and genera in the plots were high; the habitat community geographical element has temperate and tropical dual nature, but dominated by temperate nature, the habitat community showed secondary vegetation characteristics; the habitat community life form spectrum was dominated by herbaceous types (50 species, accounted for 42.74%), and in the tree layer, deciduous component accounted for the majority, which reflected the communitieswere located in the transition zone from subtropical zone to warm temperate zone; the leaf size of vegetation was mainly dominated by mesophyll (accounted for 50.43%), and the leaf quality of vegetation was mainly dominated by papery leaves (accounted for 80.34%), the proportion of species with non-entire margin leaves was higer than that with entire leaves (the former accounted for 64.96%);Pinella yaoluopingensis was in an associated position in the communities, and most communities were dominated byPinus taiwanensis; in terms of species, the number of broadleaved species was more than conifer species, but in term of important value, the value ofPinus taiwangensis was the highest, there were more individuals ofPinellia yaoluopingensisin the region where the coverage of shrub layer was at 12%~30%, the coverage of herb layer was usually 10%~20%, which was dominated byParathelypteris glanduligera. There was not a bulbil in the petiole ofPinellia yaoluopingensis and the proliferation rate was low, this may have affected the quantity of seedlings ofPinella Yaoluopingensis. The habitat community types and distribution points ofPinella yaoluopingensis were less, thus maintaining existing habitat community can provide powerful guarantee for protectingPinella yaoluopingensis. The habitat community characteristics ofPinellia yaoluopingensis can provide the theory basis for artificial cultivation and breeding.
国家科技期刊平台
NSTL
万方数据
维普
