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作 者:魏慧[1,2] 赵文武[1,2] 张骁[1,2] 王新志[3]
机构地区:[1]北京师范大学地理科学学部,地表过程与资源生态国家重点实验室,北京100875 [2]北京师范大学地理科学学部,陆地表层系统科学与可持续发展研究院,北京100875 [3]德州市国土资源局,德州253073
出 处:《生态学报》2017年第11期3830-3839,共10页Acta Ecologica Sinica
基 金:教育部创新团队项目“土壤水文与土壤侵蚀”(IRT_15R06)
摘 要:根据德州市2006—2014年土地利用变化数据,运用土地利用动态度指标分析土地利用变化情况,基于陆地生态系统单位面积生态服务价值当量表,结合德州市经济发展水平进行系数修正,对德州市2006—2014年间生态系统服务价值的时空变化进行分析。研究结果表明:德州市生态系统服务价值总体呈减少趋势,由2006年的460.92亿元减少至2014年的443.47亿元,价值变化率为-3.78%,林地和水域面积的减少是该区生态系统服务价值减少的主要原因;德州市各区县生态系统服务价值空间分异明显,其中齐河县生态系统服务价值最高,主要原因在于生态系统服务价值较高的林地和水域在齐河县广泛分布;德城区生态系统服务价值减少量最大,经济发展引起的土地利用结构变化是造成其服务价值大幅减少的主要原因;与生态系统服务总价值变化趋势相同,研究的时间跨度内德州市生态系统单项服务价值均呈现出不断减少的变化趋势。因此,在新一轮土地利用总体规划中,规划者应高度重视土地利用变化对生态系统服务价值的影响,优化调整土地利用结构,注重增加生态用地,稳步提升区域生态系统服务价值。Land use change conditions were analyzed using the data for land use change in Dezhou City from 2006 to 2014 and land use dynamics indicators. The ecosystem service values per unit area of different terrestrial ecosystems in China were used as a basis to analyze the spatial and temporal variations in the ecosystem service values for Dezhou from 2006 to 2014, after applying a correcting coefficient to the level of economic development. The results indicated that the overall ecosystem service value in Dezhou City decreased by 3.78% from 46.092 billion Yuan in 2006 to 44.347 billion Yuan in 2014. The decrease in forest land and the water covered area were the main reasons for the decrease in ecosystem service value. The spatial differences in ecosystem service values for Dezhou City were significant. The ecosystem service value for Qihe County was the highest because of the wide distribution of forest and water covered areas, which have high ecosystem service values. The ecosystem service value reduction in Decheng District was the greatest. This was mainly due to land use change caused by socioeconomic development. With the same trend of the total ecosystem service value change, the single ecosystem service value showed a declining trend in Dezhou City during the study period. Therefore, the influence of land use change on ecosystem service value is an important factor that needs to be considered in the new round of general land use planning. Furthermore, optimizing and adjusting the land use structure and increasing the ecological land area also need to be considered when attempting to improve the regional ecosystem service value
分 类 号:F301.2[经济管理—产业经济] X826[环境科学与工程—环境工程]
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