Study On Evaluation Of Land Ecological Security In Nansi Lake Watershed Of Shandong Province

Land ecological security is an important part of ecological security, related to the survivaland development of human society and stability. With the development of economy, thecontradiction between human relations become increasingly prominent, extent of land use hasbeen achieved even more than the regional ecological carrying capacity of the land, leading tothe regional ecological environment worsens gradually, so the research of ecological security ofregional land resource be imperative. Study to the ecological security of regional land resources,must first conduct a comprehensive evaluation on ecological security of regional land resources,ecological security of land resources in a comprehensive scientific assessment, is thefundamental basis for ecological security of land resources and other aspects of research.Based on the analysis of the present situation of land use, the Nansi Lake in Shandongprovince28counties (city, area) for the evaluation unit, based on the "natural economic socialenvironment" in the conceptual framework model, chooses24indexes, constructs the evaluationindex system of land ecological security, comprehensive index method and GIS combines theevaluation and Analysis on the spatial difference of land ecological security in Shandongprovince in2011by the entropy method, Nansi Lake basin.(1) From the sustainable use of regional land resource perspective of the evaluation of landecological security in Shandong province Nansi Lake Basin of the research background andsignificance, research progress of ecological security of land at home and abroad were reviewedgeneralization, and the research program of this study are shown.(2) Defines the scope of the Shandong province Nansi Lake Basin, a systematic analysis ofthe natural geographical conditions, the Nansi Lake Basin of social economic status and thecurrent situation of land use, in order to determine the evaluation index system of land ecologicalsecurity in Shandong province to provide the basic data of Nansi Lake basin.(3) Based on the "natural economic social environment" in the conceptual framework model,chooses24indexes, constructs the evaluation index system, calculation of Nansi Lake inShandong Province,28counties (city, district) level of ecological security, land shows: thedifference of land ecological security level in Shandong province by the regional nature, NansiLake Basin Economic and social conditions, has obvious difference in different regions of space,Reflected in the land ecological security level of regional economic development level issignificantly lower than the level of economic development of the region is better from4aspects of factors from the nature, economy, society and environment, land ecological security, in orderto analyze various factors on land ecological security.(4) Aiming at the main ecological problems of land currently Shandong Nansi Lake Basin isfacing, respectively from the natural, economic, social and environmental aspects of the threeand promote sustainable use of land resources, the maintenance of land ecological securitymeasures and comprehensive measures.