Study On Ecological Vulnerable Human-land System's Evolution And Sustainable Development Model Selection

Human-land system is geography's research topic and core,but ecological vulnerable human-land system is human-land system research field's vulnerable spot.Under the background of representative region humanities-natural compound system's evolution turned into China geographical science future development's strategic direction and Future Earth has provided new opportunity to Human-land system and regional sustainable development research,ecological vulnerable human-land system physical-humanistic features integrated research and establishing sustainable development pattern can deepen region humanities-natural compound system research,enrich human-land system's research contents and canonical form and run through man-land relationship theories' guiding role in the research of regional sustainable development.As a typical ecological vulnerable human-land system,yellow river delta human-land system desiderates to establish sustainable development pattern to deal with problems and challenges.Taking yellow river delta human-land system as an example research ecological vulnerable human-land system can promote yellow river delta's ecological civilization construction and have the warning function to global delta's risk and loss.This paper includes 8 parts: Part 1 is introduction,ecological vulnerable human-land system's research background,meaning,thinking,content,target,method,technology roadmap,characteristics and innovation are studied.Part 2 is research progress and theoretical basis,research progress includes human-land system research,fragile ecological environment and ecological environment fragile area research and Yellow river delta sustainable development;theoretical basis includes system theory,Social economic natural complex ecosystem theory,man land relationship theory,sustainable development theory,ecological economic theory and main function zoning theory.Part 3 is ecological vulnerabe human-land system's connotation,classification,constitute and evolution mechanism,these 4 aspect can provide theoretical basis to ecological vulnerabe human-land system's empirical research.Part 4 is Yellow river delta ecological vulnerabe human-land system's survey and determine basis,Yellow river delta is introduced from scope and location,economic,sociology and ecological environment,and it is identified as ecological vulnerabe human-land system from ecological environment's congenital basis is fragile,human development intensity in later stage is large,ecological environment's fragile leads to human-land system's fragile.Part 5 is Yellow river delta ecological vulnerabe human-land system's evolution process and dynamic.Yellow river delta ecological vulnerabe human-land system's evolution and subsystem's interrelation are evaluated by quantitative method,its dynamic is analysed from the perspective of man-land and supply – demand.Part 6 is Yellow river delta ecological vulnerabe human-land system's vulnerability process and influence factor.Yellow river delta ecological vulnerabe human-land system's vulnerability spatiotemporal pattern and influence factor are evaluated by quantitative method.Part 7 is Yellow river delta ecological vulnerabe human-land system sustainable development model,it includes typical ecological vulnerabe human-land system sustainable development model reference,Yellow river delta's thinking,principle,condition and sustainable development model selection.This paper's conclusions are as follows:(1)Ecological vulnerabe human-land system's basic theoretical issues were analysed,including classification,characteristic,deconstruction and evolution mechanism.Ecological vulnerabe human-land system is an especial and typical human-land system,its basic feature includes: ecological environment's congenital basis is fragile,human development intensity in later stage is large,ecological environment's fragile leads to human-land system's fragile.In the aspect of ecological vulnerabe human-land system's classification,the classification target and principle were analyzed,ecological vulnerabe human-land system can be classified by vulnerability's emerging stage,type and feature shaped by epigeosphere element combination and cause,ecological unbalance condition caused by human high strength development.Ecological vulnerabe human-land system has the characteristic of ecotone's location,natural ecological environment's vulnerability,postnatal high intensity of human development,human-land system vulnerability caused by ecological vulnerability.In the aspect of ecological vulnerabe human-land system's deconstruction,the element,structure,function and subsystem were analysed from economy,society and ecological environment.In the aspect of ecological vulnerabe human-land system's evolution mechanism,its evolution process was divided into 3 stages: formation,deterioration and more direction.Ecological vulnerabe human-land system's evolution's driving force incluses: human activity and geographical environment,demand and supply.(2)The evolution process and driving force of yellow river delta human-land system were researched.Dearing 1991-2015,yellow river delta human-land system presented a tendency of “U”: “ one down and one up”.The spatial pattern's transformation was not distinct and its peculiarity was “high east and low west”.Three subsystems of yellow river delta human-land system's coupling degree and coupling coordination degree presented a tendency of increase gradually,and their spatial pattern's peculiarity was “high east and low west”.The respond index of yellow river delta human-land system human activity and geographical environment turn from “positive response” to “negative response”,the responsivity's fluctuation range was large,so the stability of yellow river delta's man-land relationship needs improving.Yellow river delta human-land system's evolution was a consequence of together drive by human activity and geographical environment,supply and demand.(3)The evolution process and influence factor of yellow river delta human-land system's vulnerability were researched.Dearing 1991-2015,yellow river delta human-land system's vulnerability revealed a general fluctuation trend of decline,but the spatial pattern's transformation was not distinct and the spatial pattern presented a peculiarity of “high west and low east”.Compared with coping capacity,sensibility was yellow river delta human-land system vulnerability's influence factor.As sensibility took shape by the coupling of economy-society-entironment subsystem's sensibility under the reason of internal structure's unstable and external disturbance.So the circumvention of yellow river delta human-land system's vulnerability needs reduce economy-society-entironment subsystem's sensibility.(4)The sustainable development mode of yellow river delta human-land system was put forward.On the basis of representative region's sustainable development mode and the mentality,principle,condition of yellow river delta human-land system's sustainable development mode,the mode of “SO”,“ST” and “OW” were put forward.The mode of “SO” included: high efficient ecological economy mode under national strategy,ecological environmental protection and high efficient utilization of resource mode under ecological civilization construction,upgrade industries mode under supply-side structural reform.The mode of “ST” included: transformation of resource-dependent city based on using integrate resource's advantage,competitive industries' expanding mode under New Normal,competitiveness improvement from regional cooperation.The mode of “OW” included: fragile ecological environment's improvement mode under the ecological civilization concept,transportation infrastructure's perfection mode from national policy support,innovation-driven mode under the supply-side structural reform,characteristic urbanization mode under new-type urbanization.