Effects Of Forest Recreation On Diversity Of Plants And Arthropods In Wuling Mountain Natural Reserve

In order to ascertain the effects of forest recreation on the diversity of plants and arthropods, according to the principle of ecology and regarding forest recreation as a kind of disturbance, we research the law of the level variations of the diversity of plants and arthropods along the tour pathways under the disturbance of forest recreation in the main land of Wuling Mountain National Nature Reserve in Xinglong county in HeBei province. Based on the analysis of cluster and variance procedure, we research the influence degree, influence extent and influence characteristics of forest recreation on plants and arthropods along the tour pathways in the tourism area of the nature reserve. Using the analysis of canonical correlations, we discuss the ecological interaction of the influence of forest recreation on plants and arthropods and by using analysis of stepwise regression, we explore the influence mechanism of tourists' trampling on plants and arthropods along the tour pathways. Meanwhile, we study the law of the influence of tourism on the diversity of arthropods in the fields and the orchards, as well as the diversity of soil animals of the larch forest and the butterfly species of alpine and plain. The result shows as following:The mechanism and means of influence of forest recreation on plants and arthropods are different, which leads to the level various law of their diversity having their own traits.One of the most important influences in the numerous means of influence of forest recreation on plants and arthropods is the tourists' trampling. The relationship between tourists' trampling and plant species diversity and evenness and arthropods species richness and evenness is significant. The regressive function is as follow: g = 0.399 + 0.568H'z -0.754Ez -0.915EJ + 0.287deJThe range of influence of forest recreation on plants and arthropods are different. Under the tourism disturbance, in the direction of the vertical of the tour pathways, the influence of forest recreation on the plants is severe in the range of 2 meters to the route, while the diversity of the plants species increases obviously in the range of 3 meters to the pathways, and the influence of forest recreation on theplants is decreasing in the range of over 3 meters. The range of influence of travelling on the arthropods is mostly 3 meters; the species diversity of the arthropods can keep the highest level in the range of 1 meter to the pathways and the influence on the arthropods decreases in the range of over 3 meters.The influence characteristics of forest recreation on the plants and arthropods near the hotel are different. The influence on the plants in the forest is severe in the range of more than 1m and less than 4m to the pathways, while it is slight in the range of less than lm and more than 4m to the route. The influence on the arthropods is severe in the range of 4 meters, and it is slight in the range of more than 4m to the route. The influence on the arthropods lags behind that on the plants.The influence extent and influence degree of the tourism development on the arthropods of stems in the forest is more than that of the normal production of agriculture and forest. The influence of forest recreation on the diversity, mastery, evenness of the arthropods of stems in the forest is not obvious. The influence is obvious only on the arthropods in the stems in the forests under the severe disturbance.The tourists' trampling on the plants affect the richness, diversity and mastery of soil animal species evidently. The influence range on the soil animal is always in 3 meters or so in the direction of the vertical of the pathways, and in 10cm in the direction of vertical of the ground. The influence on the soil animal is gradually decreasing along the direction of the vertical of the route and the vertical of the ground.Forest recreation affects the small butterfly of the alpine and plain, under which the species and quantity of the butterfly decrease, but the influence on the medium-sized and man-sized butterfly is no...