河北省生态系统服务价值变化研究

Studies on the changes of land use and value of the ecosystem service in Hebei Province

本研究分析了1993～2000年河北省土地利用和生态系统服务价值变化。结果表明,河北省耕地、水域、湿地和未利用土地面积在减少,而园地、林地、牧草地和建设用地面积在增加,因水域和湿地单位面积生态系统服务价值较高,7年间河北省区域生态系统服务价值显著减少,河北省生态系统服务价值从1993年的157.3116亿美元减少到2000年的152.3503亿美元,减少率为3.15%,净减少值4.9613亿美元。

The land is the ecosystem carrier. Land use changes affect the ecosystem structures and functions, and cause the changes of ecosystem service values. The paper analyzes the changes of land use and ecosystem service values from 1993 to 2000 in Hebei Province. Results show that the cultivated land, water area, swamp and unused land are decreased, but fruit land, woodland, grassland and building land are increased. Ecosystem service values are remarkably decreased in Hebei Province in the period of 1993- 2000. Ecosystem service values are decreased from 15. 73116 billion US dollars in 1993 to 15. 23503 billion US dollars in 2000. The decreasing rate of ecosystem service value is 3.15 %.