LI Huidan,YE Changsheng,HUA Jiqing.Impact of Land Use Change on Ecosystem Service Value in Nanchang City[J].Research of Soil and Water Conservation,2020,27(03):277-285,293.
南昌市土地利用变化对生态系统服务价值影响
- Title:
- Impact of Land Use Change on Ecosystem Service Value in Nanchang City
- 文章编号:
- 1005-3409(2020)03-0277-09
- 分类号:
- X171.1; F062
- 文献标志码:
- A
- 摘要:
- 基于南昌市2000年、2005年、2010年、2017年四期土地利用现状遥感监测数据,利用多样性指数、GIS空间分析和生态价值评估模型,分析了2000—2017年南昌市土地利用变化对生态系统服务价值的影响。结果表明:(1)2000—2017年,由于建设用地的迅速增长和耕地、林地的大量减少,南昌市的生态系统服务价值总量总体呈下降趋势,由2000年的375.69亿元减至2017年的357.47亿元,水域生态系统是南昌市生态系统服务的主要提供者;(2)受土地利用变化影响,南昌市生态系统服务价值变化呈现明显的区域差异,进贤县服务价值最高; 调节服务功能是南昌市土地生态系统的主要功能,占土地生态系统服务总价值的67.59%以上,主要分布在进贤县和新建县,青云谱区最低仅为0.38亿元; 调节服务功能和文化功能较低的镇(街)主要集中分布在南昌市中心城区及其周围;(3)南昌市生态系统服务价值与建设用地面积呈负相关关系,建设用地的快速增长影响到生态系统服务价值的增减。研究结果为南昌市未来的生态环境建设发展提供依据和参考。
- Abstract:
- Based on the remote sensing monitoring data according to land use status of 2000, 2005, 2010 and 2017, Nanchang City was taken as an example site. Diversity index, GIS spatial analysis and ecological value evaluation model were used to analyze the impact of land use change on ecosystem service value of Nanchang in the period 2000—2017. The results show that:(1)from 2000 to 2017, due to the rapid growth of construction land, the cultivated land and forest land decreased, the overall value of ecosystem services in Nanchang showed the decreasing trend; the value decreased from 3.756 9×1010 yuan in 2000 to 3.574 7×1010 yuan in 2017; and the aquatic ecosystem was the main provider of ecosystem services in Nanchang;(2)affected by the change of land use, the change of ecosystem service value in Nanchang showed obvious regional difference; these changes seemed to be obvious in Jinxian County; and regulating service function was the main function of land ecosystem in Nanchang which accounted for more than 67.59% of the total value of land ecosystem services in Nanchang and mainly distributed in Jinxian County and Xinjian County; the lowest regulation service function value(3.8×107 yuan)was found in Qingyunpu distric; towns or streets with lower regulation service function and cultural function mainly distributed in the central urban and the area around it of Nanchang;(3)the value of ecosystem services in each administrative town of Nanchang was negatively correlated with the area of construction land; the excessive increase of construction land affected the increase and decrease of ecosystem service value. These results can provide the basis and reference for the future ecological environment construction and development of Nanchang City.
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备注/Memo
收稿日期:2019-07-17 修回日期:2019-08-22资助项目:江西省自然科学基金 “南昌市半城市化地区空间范围识别、模拟及优化策略”(20171BAA208025)第一作者:李辉丹(1995—),女,四川内江人,硕士研究生,主要从事土地利用变化与规划的研究。E-mail:1115199147@qq.com通信作者:叶长盛(1977—),男,江西临川人,教授,博士,研究方向城乡发展、土地资源利用与保护。E-mail:ycs519@163.com