Ecologic-geologic Environment Evaluation Of Sanjiang Plain In Heilongjiang Province

Ecological carrying capacity is the basis for human survival and activity, which has theextremely vital significance to the ecological system, based on collecting area based on thedata, using the analytic hierarchy process, firstly in Sanjiang plain of geological environmentquality and resource carrying capacity comprehensive evaluation, and the correspondinggrade partition, then according to the geological environment quality evaluation and the mapof ecological carrying capacity classification map, based on GIS software space, complete thecomprehensive evaluation of ecological carrying capacity based on the overlay analysis onthese two graphs.The first part according to recent years, hydrology, geology and other related data, therecharge of groundwater resources in Sanjiang plain area, groundwater and groundwatervariation characteristics of exploitable resources, analysis of the Sanjiang plain in recent50years the amount of resources rapid attenuation trend; using fuzzy comprehensive evaluationmethod, determining the groundwater quality in the Sanjiang plain, delineation ofgroundwater quality evaluation map, to provide basic data for Sanjiang plain ecologicalenvironmental quality assessment and resource carrying capacity.The second part of the establishment of the geological environment quality evaluationsystem, using AHP main factor of affecting the quality of the geological environment of rock,soil, water--factor in the development of different regions, according to the relative degree,were given corresponding strength value index, according to the intensity index sizeclassification of geological environmental quality。The third part of the establishment of resources carrying capacity evaluation system,using the grade evaluation method, evaluation index of ecological carrying capacity ofSanjiang plain and elastic resources, determine the ecological carrying capacity.The fourth part according to the geological environment quality evaluation and the mapof ecological carrying capacity classification map, based on GIS software space, wereanalyzed in the two diagram, determine the ecological geological environment quality, andgrade partition.