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Effects of Tourism Activities on Plants Communities of Trail Neighborhood in Mount. Jiuhua Scenic Region

旅游活动对九华山风景区游道附近植物群落的影响


在九华山风景区选择6条主要游道,设置21条调查样带,每条样带由近游道向远离游道的方向依次选取4个连续样方,每个样方面积设置为1 m×1 m。记录植物的种类、数量、高度、覆盖度等指标,运用植物群落干扰度指数、植物群落多样性、伴人植物重要值等指标对所获取的调查数据进行分析统计,并用SPSS13的多重比较和Pearson检验对结果进行显著性、相关性分析。结果表明: 1) 植物群落覆盖率、平均高度由近游道向远离游道的方向逐渐增加,差异显著( P <0.05); 植物区系组成变异度越远离游道变异越小;植物群落干扰指数由近游道向远离游道方向呈递减趋势; 2) 植物群落多样性、均匀度、优势度与旅游活动强度相关,强度越大,变化越明显; 3) 伴人植物占所调查物种数的18.64%,大量出现在近游道样方,远离游道样方分布明显减少,其重要值分布沿游道向内部逐渐降低; 4) 游客量与植物群落受干扰影响程度呈现正相关,正相关程度由近游道的样方向远离游道的方向递减,但差异不显著( P >0.05); 5) 植物群落受旅游活动影响程度与高度和坡度也有一定的相关性。

Vegetation is one of the most sensitive environmental factors in the scenic area ecosystem influenced by tourism activities, and also the focus of the ecological environment research. 6 main trails have been chosen and 21 investigation belt transects have been set up in Mount.Jiuhua scenic area. Each sampling belt from near to far in the direction of trails is followed by four consecutive quadrats, and each quadrat area is set to 1 m2 .Targets of the vegetation have been recorded, such as types, quantities, heights, and coverages. Index of plant community impact, plant diversity and importance values of anthropochory have been used for analyzing and counting the obtained investigation targets. Besides, multiple comparisons and Pearson correlation of SPSS13 were prepared for testing significances and correlation on the results. The results are as follows :1)The coverage and the average height of plant community increase gradually as the distance increases along the tour roads, and the differences are significant( P <0.05);the more distant that is from the trails, the smaller the changes of floristic dissimilarity are; index of plant community impact decreases from near to far in the direction of tour roads; 2)Index of plant community diversity, evenness and dominance have relation with the intensity of tourism activities.The greater the intensity is, the more significant the changes are; 3)Among all species of the investigated plant, the species of anthropochory account for 19.49%, large quantities of anthropochory appear in the quadrats near trails, and reduced significantly in quadrats away from the trails, anthropochory important value distribution reduce gradually along the trails to the internal; 4)The number of tourists showed a positive correlation with the degree of impacts on plant communities,the degree of which decline as the distance increases along the tour roads, but the differences are not significant( P >0.05); 5)The impacts of tourism activities on plant community also have relevances with the elevation and slope of investigation belt transects.


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