旅游干扰对峨眉山风景区土壤及植被的影响

IMPACTS OF TOURIST DISTURBANCE ON SOIL PROPERTIES AND PALANT COMMUNITIES IN EMEISHAN MOUNTAIN SCENIC REGION

关键词:  旅游干扰 土壤 植被 生态系统 峨眉山风景区

Key words:  tourist disturbance  soil  vegetation  ecosystem  Emeishan Mountain scenic region

摘要:

文章利用室外调查与室内分析相结合的方法，分析了旅游干扰对峨眉山景区内的植被与土壤性质的影响。试验结果表明：旅游干扰对峨眉山景区中的植被影响比较明显，植被均匀度指数、丰富度指数、优势度指数以及多样性指数都低于对照区，其中草本层所受到的影响最为严重，达到显著水平（P＜0.05）。在干扰活动下，草本层的均匀度指数、丰富度指数、优势度指数及多样性指数分别比对照降低了13.42%、29.81%、10.12%及17.69%。此外，旅游干扰也对景区土壤性质造成较大影响，干扰使土壤容重进一步增加，同时降低了土壤有机质、全氮、全钾及速效养分的含量，在对不同土层深度分析中表明，干扰区土壤各理化性状随着土层深度的增加而增加，而对照区土壤各理化性状随着土层深度的增加而减少，旅游干扰对土壤理化性质影响显著。

Abstract:

The impact of tourism disturbance on soil and plant properties in Emeishan Mountain Scenic Region were analyzed based on the field investigation and the laboratory analysisThe results showed that the tourist disturbance generated a great effect on plant properties，evenness index，vegetation richness index，dominance index and diversity indexThe impact on the herb layer was more serious and reached significant levelCompared with control treatment，the herb layer evenness index，vegetation richness index，dominance index and diversity index were 13.42%，29.81%，10.12%，17.69%，respectivelyIn addition，tourist disturbance generated a great effect on soil propertiesThe nutrients，total nitrogen，total potassium，available nutrients were significantly reduced，soil bulk density were significantly increasedSoil properties in interference area increased with the increase of soil depth by tourist disturbance，which decreased in the contrast area with the increase of soil depth.