宝天曼自然保护区水曲柳群落对旅游干扰的生态响应

The Ecological Response of Fraxinus mandshurica Community to Tourism Disturbance in Baotianman Natural Reserve Area

通过对河南宝天曼国家级自然保护区水曲柳群落旅游干扰有无的对比研究.结果表明,干扰状态下土壤孔隙度降低,容重增加;土壤有机质、全氮和活性酶含量下降,全磷、全钾变化不明显;干扰区植物种类增加,地理区系组成趋于简单,生活型改变;Shannon-W iener指数灌木层增大而草本层减小.

This paper discusses the tourism disturbance on Fraxinus mandshurica community in Baotianman Natural Reserve area in Neixiang County, Henan Province. The results showed that under the disturbance, the soil porosity became lower, bulk density increased, soil organ content, total nitrogen content and active enzyme content decreased, while the total phosphor, total kalium changed a little. The results also showed that under the disturbance, the community had more species, flora became simple, the life form changed, and the Shannon - Wiener index increased in shrub layer but decreased in herb layer.