As a new mode of tourism,ecotourism aims at keeping sustainable development.It appears for the sustainable development goal and development model of the world's tourism.There are plenty of tourism resources in karst regions and many scenic spots have been developed.The tourism resources have fragile characteristics.Development of ecotourism in karst regions aims at promoting sustainable development of ecological environment,economy and society.According to the connotation of the ecotourism,the article,by appraising tourism resources'specialty and analyzing the existig circumstance of developing tourism,expounds the importance and realistic significance of developing ecotourism in karst regions.
Karst environment is a very fragile environment,which is short of water and soil,and is rich in calcium.In the article,on the geological base of the karst forming of Mt. Jinfo,its resources superiority and the effect of the fragile karst ecosystem on the economic development of Mt. Jinfo was discussed. In order to develop the economiy of this karst on the base of resources superiority,some suggestions were expounded.In the end,the author raised that environmental protection and ecological development are as important as the economic development.
From October 1999 to July 2001, this study investigated the effects of dredging on the community and structure of the micro-invertebrate in Huangdu and Huacao on headwaters of Suzhou creek. The result was that Mollusca and Oligochaeta were dominant in the both sites. Before dredging, there were six species of Mollusca?three species of Oligochaeta and one of Hirudinea in Huangdu, and one Mollusca and four Oligochaetas in Huacao. After dredging, more species of invertebrate were found. In Huangdu, there was one species more than before, and in Huacao, there were four species more than before. So the recovery of the species in Huacao is more obvious. Dredging removed the density and biomass of the community, but the density of the community was increasing gradually in one year. Furthermore, exponential of diversity of dredged was always higher than before in Huacao. But in Huangdu, it wasn't higher than before until half year later. It is suggested that dredging in headwaters of Suzhou creek help for the recovery of the community of micro-invertebrate.
Xiaoqikong lies in Libo karst region,south Guizhou.It has many kinds of karst landforms,Fengcong depression,Fengcong valley,karst forest etc.Karst forest is marvelous in Xiaoqikong area.There is not only the most interesting scenery,but also the important scientific research place.Discussing the geology,the climate,the soil and the vegetations,in unfavorable environment,the author expounds that the karst forest is aboriginal and flourish in the karst environment,and its ecosystem is stable.In the end of the article,considering the frail characteristic of karst environment,the author suggests it be significant to reserve the karst forest.
Biodiversity is the important material foundation and guarantee for human being′s survival and development. Jinfo Mountain Nature Reserve is a typical karst area, where there are plentiful biological resources. The current status of biodiversity and the problems about biodiversity conservation are discussed. Some suggestions are put forward: 1) combining conservation with development, raising money for biodiversity conservation through developing ecotourism; 2) harmonizing the relationship between different management departments; 3) strengthening scientific research work to support biodiversity conservation.
Based on a lot of facts,the harms of soil erosion and the effect of soil and water conservation are analyzed.It is fully illustrated that soil and water conservation is the dependable assurance on the development of sustainable agriculture in the loess plateau areas.It is also the fundamental way to avoid the drought and flood,improve the eco environment and production conditions,accelerate the development of sustainable agriculture,and shake off poverty and build up a fortune.
Historic towns and villages in mountain areas are important types of historical and cultural heritages with both dominant cultural and hidden ecological attributes.Its ecological and cultural protection should take into account the concerns,which embody the recognition and respect to ecological relationship in such heritage,and emphasizes the basic position and role of ecological protection in the heritage conservation.Based on the association with the historical environment,historic towns and villages in mountain areas have its special ecological problems and research priorities.This paper,taking Bayu area as an example,summarizes the ecological characteristics of historic town and village in mountainous areas,revealing the main issues in the current protection.On the basis of determining the objectives and principles of ecological protection,this paper studies the ecological protection from two levels of ecological landscape and ecological security pattern,proposes the overall strategy and technology framework on protection,sums up the technical points of solving ecological issues on historic town and village in mountainous areas,and explores the protection mode under the mountain ecological perspective as well as enriches the current protection theory of historic town and village in mountainous areas.
