绿色食品产地生态环境质量分析与评价--以庆安县国家级生态农业示范区为例

采用1993年、2000年和2003年庆安县生态环境质量监测数据,通过指数评价和加权综合评价法,分析评价庆安县绿色食品产地的生态环境质量,并利用GIS地理统计等功能,用变异估计法及克里格插值法,以可视化的方式展现绿色食品产地环境质量的空间分布.结果表明,庆安县中部和西南部的环境质量最好,最适宜发展AA级绿色食品基地; 西北部和东南部的绿色食品产地环境质量虽然是清洁、安全的,但有逐渐恶化趋势,需引起进一步关注.

Appraisal on eco-environment factors in green food producing area

Based on the statistic data in relation to the eco-environmental qualities collected in the years of 1993, 2000 and 2003, the authors have done an evaluation of the environmental qualities of green food production in the area of county Qing'an, Helongjiang Province. The data analysis is done with the method of combining the index appraisal and weight-measuring appraisal. The authors also used the GIS to analyze the spatial distribution of the environmental qualities in the green food producing area with the methods of variation figure and Kriging interpolation. The results demonstrate that the best areas producing green food are located in the middle and southeastern parts of the county, and the region is suitable to be developed as AA level green food base. The analysis also shows that the northwestern and southeastern parts of the county, though environmentally clean and safe, potentially tend to degrade, needs to be more carefully monitored.