Investigation And Assessment On Ecological Environment Of The Littoral Karst Of Cheng Shan Tou In Liaonan

In Liaonan Cheng Shan Tou, because of the sea erosion perennial, forming the unique coastal karst landform, In order to protect the world rare typical beach plastic karst landscape menstrual. June,2001, officially approved by the state council in liaonan named as "Cheng Shan Tou beach landforms national nature protection zone". Through the analysis, the region is in young period of littoral karst landscape development. Main geological features including coast clint, coastal stone forest, anti-corrosion dissolve cliff, anti-corrosion cave, anti-corrosion dissolve column, anti-corrosion dissolve bridge, etc. This paper is based on the study of geological and geomorphic, evaluated the ecological environment of the coastal karst landform. Do the following new research and exploration.(1) evaluated the ecological environment of the protection zone, introduced the general situation of natural environment and social environment of this zone, analyzes the littoral karst landscape formation of the basic theory.(2) On reserves of waters around 20 monitoring laid on the water and sediment sampling analysis, through the analysis of water quality evaluation of the point that the waters, the concentration of evaluation factors were not more than water quality standards of two kind of standards that the sea water quality basic in good situation; Through the sediment analysis concluded that the sediment status is evener, sea correlativity with the first kind of sediment standards, sediment quality is good.(3) Based on the analysis of water and sediment data, this paper introduced the meaning and content of ecological system safety evaluation, and the sea ecology system risk evaluation standard, and the waters of the sediment environment risk evaluation poisonous and harmful material. Evaluation results indicated that the waters potential ecological risk index is low, poisonous and harmful substances index is low, but because the littoral karst landform areas bedrock naked are more susceptible to the external influence and destruction.Paper finally puts forward five measures:Strengthen the monitoring of ecological protection environment, Strengthening the building construction supervision in the protection zone, Strengthen the ecological environment protection zone, Strengthen the propaganda education of environmental protection, Scientific planning and management tourism resources, Provides basic scientific basis on reserve of planning and management of protection zone.