【摘要】 以农安县太平池湿地区域为研究对象,利用1989年、2000年和2014年遥感影像对土地利用变化特征及其与生态环境演变的响应关系进行分析,在此基础上对研究区生态系统服务价值进行评估.通过分析生态系统服务价值流向,不同土地利用类型生态系统服务价值和单项生态系统服务价值对生态系统服务总价值所产生的影响,研究土地利用变化与生态系统服务价值间的关系.结果表明:1989~2014年间农安县太平池湿地区域土地利用变化程度较大,耕地、居民用地、盐碱地和湿地面积呈增长趋势,水域、草地和林地面积呈递减趋势,耕地和草地面积变化最为剧烈,分别为68.42km2和-92.20km2.土地利用变化同时受到自然因素和人为因素的影响,其中,影响土地利用变化的主要驱动因素为人口因素.耕地和水域对研究区生态系统服务价值贡献最大,占总生态系统服务价值的比例分别为45%以上和20%以上.研究区单项生态系统服务价值大部分处于递减状态,水源涵养功能价值减少最多,为2 178.12万元.由于土地利用类型转化处于不平衡状态,研究区生态系统服务价值在1989~2014年间整体价值流向为负.湿地作为重要的生态系统类型,其生态系统服务价值受人类活动下土地利用变化的影响较大,因此,本研究对土地利用变化对湿地生态系统服务价值所产生影响的情况进行评估,研究结果对区域生态安全的评价具有重要意义.更多还原

【Abstract】 Based on 1989,2000 and 2014remote sensing image interpretation data,the characteristics of land use change of Taipingchi wetland region in Nong’an were extracted and analyzed.And the response in the relationship between change of land use and ecological environment evolution were also analyzed.Then the ecological services value of different land use types within the region was calculated.And in the study area the impact of land use change on ecosystem service function and their relationship were studied.The results showed that there were great changes of land use in Taipingchi wetland region in Nong’an during the period from 1989 to 2014,and the transformation trend of land use types belonged to the state of imbalance.The area of the cultivated land,residential land,bare saline-alkali patches and wetland had an increasing tendency,and the area of waters,grassland and woodland decreased during the period.The change of the cultivated land area and grassland area were more remarkable at 68.42km2 increase and 92.2km2 decrease respectively.The cultivated land,bare saline-alkali patches and wetland was the main land type which affected by both natural factors and human factors,and the population was the main driving factors of land use change.Land use change led to the change of ecological environment in the research area and influenced the ecosystem service value.The ecosystem service value mainly provided by the cultivated land and water,contribution rate more than 45%and 20%respectively.Most of the single service function value showed a trend of decrease.During the entire study,the loss of water source conservation function value is the most which is 21.781 2million yuan.Each land use type conversion is not conducive to the ecosystem service value in study area during the study period.Wetland is an important ecological system type,the ecosystem services value changes obviously affected by human activities,therefore,this study evaluated the land use changing by the influence of the wetland ecosystem service value,the results of the study have great significance of regional ecological security evaluation.更多还原