Study of soil and water conservation Function on Slope with Different Planting Patterns for a Typical Small Watershed in Karst Region of Guizhou Province

Ten runoff plots with different planting patterns were established for experimental observation in Yangjichong small watershed of Longli County in Karst region of Guizhou Province. Results show that under the same rainfall condition, shrub land, natural grassland and abandoned land presented the best function of soil and water conservation. The function of soil and water conservation was poor for arbor planting pattern, because the shrub layer, herb layer and forest floor were not formed. Because of no-tillage, surface crust and other effects, the function of soil and water conservation in slope farmland was better than that in runoffplots with arbor planting pattern.

论龙崇拜与西南民族生态观

西南少数民族中存留着一种朴素原始的生态观，这与该地区少数民族的龙崇拜行为有着极为密切的关系。龙是自然界的象征，人龙关系是兄弟般的平等关系，两者应当和睦相处。水土为龙之居所，当保持水土、净化水源；动物也系龙之子孙，当保护动物。没有龙所代表的自然界就没有人类自己。这种建立在崇龙基础上的生态观客观上为维护西南民族地区的生态平衡作出了贡献。