应用1989年和2000年Landsat TM影像解译数据分析松嫩平原腹地土地利用变化情况,制定单位面积生态系统服务价值系数,计算松嫩平原腹地生态系统服务价值,研究土地利用变化对生态系统服务价值的影响。结果表明,在11 a间,松嫩平原腹地土地利用变化呈现耕地、城镇用地、碱地、林地、沙地迅速增加,草地、水域和湿地大幅度减少的“5增3减”趋势。土地利用景观格局的变化降低了生态系统的服务功能,使其生态系统服务总价值从1366.070亿元/a下降到1017.044亿元/a。
Based on the data of land use changes from 1989 to 2000, the coefficient of ecosystem service value per unit area in the hinterland of Songnen plain was put forward and its value calculated. The results showed that the area of the saline-alkali land, arable land, woodland, urban area and sand land had increased rapidly during the 11 years. Meanwhile, the area of grassland, inland water and wetland had extremely decreased. The change of landscape pattern led to the damage of ecosystem service function in the study area, and declined the service value from 1366. 070 billion to 1017. 044 billion Yuan annually.