基于民族山区生态与产业共生关系的林业生态安全评价OA北大核心CSTPCD

Through the ecological and industrial symbiosis perspective to explore the interaction between in-dustry and forestry ecology in Changning County,Yunnan Province,using the Lotka-Volterra symbiosis model of forest ecology and forestry industry composite system,constructing the'Pressure-State-Impact-Response'index sys-tem,and analyzing the ecological security status of Changning County by combining with the forestry L-V model and the characteristic index.The environmental security status of Changning County was investigated,and the ecological security level and early warning level were determined.The results show that Changning County was in the early warning turning zone of forestry environmental security from 2011 to 2015,located between the critical point of re-habilitation state and healthy state;after 2019,it was in the environmental security zone,and the forestry ecological level is gradually recovered and developed in the direction of industry-ecological mutual benefit symbiosis,but the forestry ecology is relatively in a disadvantageous position,and it still needs to be paid attention to in future deci-sion-making and development However,the forestry ecology is relatively disadvantaged and still needs attention in future decision-making and development,further promoting ecological protection while developing the forestry in-dustry,so that it can grow in the direction of a more stable symbiosis.