生态旅游区不同距离带上植物群落的结构对比

通过对芦芽山自然保护区植物群落的结构分析 ,揭示旅游活动和群落演替的内在机理 ,为景区植被保护和旅游管理提供依据 .结果表明 :不同地段上各植被层由于各种因素的影响而有所不同 ,大部分景区的植被生长良好 .不同距离带上各植被层大致表现出近距离 <中距离 <远距离的格局规律 ,但其明显度不尽一致 ,说明各植被层反映旅游活动对群落结构作用程度的能力大小依次为乔木层 <灌木层 <苔藓层 <草本层 .5个旅游影响因子的变化趋势 ,反映了旅游活动对群落生态环境的结构作用的规律 .距游径的水平距离愈远 ,垃圾量愈少 ,林下死枝下高愈高 ,枯层愈厚 ,树桩量愈多 ,幼苗量也愈多 .不同距离带上的变化规律客观地描绘了旅游活动的规律性变化 ,近距离处旅游活动强度最大 ,中距离处次之 ,远距离处则最小 .图 1表 1参 8

STRUCTURE COMPARISON OF PLANT COMMUNITIES AT DIFFERENT DISTANCE FROM TOURIST PATH IN ECOTOURISM REGION

The stability of community structure is a basic protection of vegetation ecological environment, the study of plant communities' structure can unveil the mechanism of tourism activity and community succession, and provide a basis to vegetation protection and tourism engagement in tourist region. The structure of plant communities in Luya Mountain Natural Reserve is analyzed in the paper, and it shows that every vegetation layer at different place has different change because of all kinds of factors, vegetation grows good in most of tourist regions. The rule of each vegetation layer at different distance from tourist path is near < middle < far mainly, but their degrees are different, which shows that their abilities of reflecting the impact of tourism activity on communities' structure are tree layer < shrub layer < moss layer < meadow layer in order. The change trend of five tourism influencing factors reflects the rule of the impact of tourism activity on community' ecological environment. The farther the distance from tourist road is, the less rubbish is, the taller the height dead branch under tree is, the thicker the dead stick and humus layer is, the more the strake is, and the more the regeneration tree is. The rule of change at different distance describes that of tourism activity objectively, tourism activity is the most at near distance, the second at middle distance, and the worst at far distance. Fig 1, Tab 1, Ref 8