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首页> 外文期刊>Journal of Forestry Research >Assessment of land use change and potential eco-service value in the upper reaches of Minjiang River, China
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Assessment of land use change and potential eco-service value in the upper reaches of Minjiang River, China

机译：of江上游土地利用变化及潜在生态服务价值评估

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摘要

The remote sensing (RS) and geographical information system (GIS) technologies were adopted and a mathematic method was developed to evaluate the changes of ecosystem services in the upper reaches of Minjiang River-valley for providing advices to manage the ecosystem. The results showed that the land use change mainly occurred on forest, farmland and grassland. From 1986 to 1994, the area of farmland increased by 477% (60801 hm~2), while the area of forest decreased by 4.97% (89012.17 hm~2). From 1986 to 2000, the eco-service value of forest was degressive but that of farmland increased greatly as the increasing of planting area, while the total eco-service value decreased by 771.11 x 10~8 yuan RMB due to the rapid increase of population in this region. The driving force of eco-service change was also discussed in the paper. The nation policy of Natural Forest Protection Project has taken effect in preventing the decline of eco-services.
机译：运用遥感技术和地理信息系统技术，开发了一种数学方法来评价-江河谷上游生态系统服务的变化，为生态系统管理提供建议。结果表明，土地利用变化主要发生在森林，农田和草地上。从1986年到1994年，耕地面积增加了477％（60801 hm〜2），而森林面积减少了4.97％（89012.17 hm〜2）。 1986年至2000年，森林的生态服务价值逐渐下降，但耕地面积却随着耕地面积的增加而大大增加，而总的生态服务价值却由于人口的快速增长而下降了771.11 x 10〜8元。在这个地区。本文还讨论了生态服务变化的驱动力。天然林保护项目的国家政策已在防止生态服务下降方面生效。

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