梁甜, 陈银银, 杨童, 田欣雅, 毛嫣丽. 多情景模拟下土地利用变化与生态系统服务价值的空间响应——以重庆市江津区为例[J]. 内江师范学院学报, 2025, 40(2): 87-94,128. DOI: 10.13603/j.cnki.51-1621/z.2025.02.012
    引用本文: 梁甜, 陈银银, 杨童, 田欣雅, 毛嫣丽. 多情景模拟下土地利用变化与生态系统服务价值的空间响应——以重庆市江津区为例[J]. 内江师范学院学报, 2025, 40(2): 87-94,128. DOI: 10.13603/j.cnki.51-1621/z.2025.02.012
    LIANG Tian, CHEN Yinyin, YANG Tong, TIAN Xinya, MAO Yanli. Spatial response of land use change and ecosystem service value under multi-scenario simulation with Jiangjin District of Chongqing as an example[J]. Journal of Neijiang Normal University, 2025, 40(2): 87-94,128. DOI: 10.13603/j.cnki.51-1621/z.2025.02.012
    Citation: LIANG Tian, CHEN Yinyin, YANG Tong, TIAN Xinya, MAO Yanli. Spatial response of land use change and ecosystem service value under multi-scenario simulation with Jiangjin District of Chongqing as an example[J]. Journal of Neijiang Normal University, 2025, 40(2): 87-94,128. DOI: 10.13603/j.cnki.51-1621/z.2025.02.012

    多情景模拟下土地利用变化与生态系统服务价值的空间响应——以重庆市江津区为例

    Spatial response of land use change and ecosystem service value under multi-scenario simulation with Jiangjin District of Chongqing as an example

    • 摘要: 探讨不同情景下土地利用变化及其生态系统服务价值,对促进江津区社会-经济-生态和谐稳定发展具有重要意义.基于2000、2010、2020年三期土地利用数据,利用PLUS模型模拟4种情景下的土地利用变化特征,采用价值当量因子法评估不同发展情景下的生态系统服务价值时空演变特征.研究结果显示:(1)2000—2020年,江津区土地利用时空变化显著,林地转出面积最多;生态系统服务价值呈逐年下降趋势,三时期分别为0.984 2亿、0.942 9亿和0.928 9亿元.(2)预测到2030年,在自然发展、耕地保护、生态保护、经济发展4种情景下,研究区林地面积均有所下降,变化速度最快的是建设用地.(3)预测在4种发展情景下,研究区生态系统服务价值分别为0.841 8亿、0.833 5亿、0.933 4亿和0.834 4亿元,并整体呈南高北低的空间分布特征;且相较于2020年,仅生态保护情景下的研究区生态系统服务价值大幅增加.研究结果可为江津区未来国土空间规划提供参考.

       

      Abstract: Exploring land use change and its ecosystem service value under different scenarios is of great significance to promote the harmonious and stable socio-economic-ecological development of Jiangjin District. Based on the three periods of land use data in 2000, 2010 and 2020, the PLUS model was used to simulate the land use change characteristics under four scenarios, namely, natural development, arable land protection, ecological protection and economic development, and the value-equivalent factor method was used to assess the spatial and temporal evolution characteristics of ecosystem service values under different development scenarios. The research results show that: (1) From 2000 to 2020, there were significant spatial and temporal changes in land use in Jiangjin District, with the largest area of forested land being transferred out; the value of ecosystem services showed a decreasing trend year by year, with 98.42 million, 94.29 million, and 92.89 million yuan in the three periods, respectively. (2) The area of forested land in the study area is projected to decline by 2030 under all four scenarios: natural development, cropland preservation, ecological preservation, and economic development, with the fastest rate of change being in construction land. (3) It is predicted that the ecosystem service value of the study area under the four development scenarios will be 84.18 million, 83.35 million, 93.34 million and 83.44 million yuan, respectively; and compared with 2020, the ecosystem service value of the study area under the ecological protection scenario only has increased significantly, and the overall spatial distribution of the study area is characterized by a high in the south, a high in the north and a low in the north. The results of the study can provide a reference for the future spatial planning of land in Jiangjin District.

       

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