“三生空间”视角下庆阳市景观生态风险评价及耦合协调度
巩小维(1998-),男,硕士研究生,主要从事农业资源利用. E-mail: gxw2312@163.com |
收稿日期: 2024-07-30
修回日期: 2024-09-29
网络出版日期: 2025-08-13
基金资助
甘肃省自然科学基金(23JRRA1413)
甘肃省林业和草原科技创新计划(LCKJCX202205)
甘肃省科技厅重点研发计划-农业领域(23YFNA0036)
Landscape ecological risk evaluation and degree of coupling coordination in Qingyang City from the perspective of production-living-ecological space
Received date: 2024-07-30
Revised date: 2024-09-29
Online published: 2025-08-13
巩小维 , 周冬梅 , 张军 , 罗世玉 , 陈建坤 , 高雅娟 . “三生空间”视角下庆阳市景观生态风险评价及耦合协调度[J]. 干旱区研究, 2025 , 42(3) : 556 -567 . DOI: 10.13866/j.azr.2025.03.15
Qingyang City is located in the loess plateau region of eastern Gansu Province, which is endowed with abundant natural resources and serves as one of the key zones for supplying energy to the country. It plays a crucial role in fostering development, safeguarding ecological integrity, promoting high-quality growth, and enhancing environmental protection within the western region. Exploring and analysing the ecological risk patterns and coupled the coordination of the production-living-ecological space landscapes is of profound significance. This study focused on Qingyang, located in the loess plateau region of eastern Gansu Province, employing methodologies such as land use transfer matrix analysis, landscape ecological risk assessment models, and coupling coordination degree models to investigate and analyze changes in land use structure from 2000 to 2020. This work also incorporated the patterns of landscape ecological risk, and the degree of coupling coordination among production-living-ecological space based on comprehensive evaluation. The following results were obtained: (1) Over the last two decades, the ecological and residential space in Qingyang City has consistently increased year after year, whereas the area designated for production has exhibited a gradual decline. (2) The overall landscape ecological condition of Qingyang City is in a low-risk state, and the distribution of the degree of risk is “low in the east and high in the west.” (3) The degree of coupling coordination of the production-living-ecological space is well developed and concentrated, presenting a distribution of “high in the south and low in the north.” The coupling coordination area is expanding continuously year by year, while the uncoordinated area is shrinking. (4) By analyzing the coupling coordination of the production-living-ecological space using natural and social economic factors, it is concluded that socioeconomic factors have a more significant impact on this. Therefore, the driving factors are integrated with the needs and characteristics of the production-living-ecological space, and the layout of the production-living-ecological space is optimized to facilitate the coordinated development of the ecological risk pattern of the landscape, enhance the regional ecological security of the landscape, and advance the sustainable development of the ecological economy of Qingyang City.
表1 三生空间分类体系Tab. 1 Production-living-ecological space classification system |
三生空间类型 | 二级分类 | 三级地类 |
---|---|---|
生产空间 | 农业生产空间 | 11水田、12旱地 |
工矿生产空间 | 53工矿建设用地 | |
生活空间 | 城镇生活空间 | 51城镇建设用地 |
农村生活空间 | 52农村建设用地 | |
生态空间 | 林地生态空间 | 21有林地、22灌木林地、23疏林地、24其他林地 |
草地生态空间 | 31高覆盖度草地、32中覆盖度草地、33低覆盖度草地 | |
水域生态空间 | 41河渠、42湖泊、43水库、坑塘、 46滩涂 | |
其他生态空间 | 61沙地、63盐碱地、64沼泽地、65裸土地、67其他未利用 |
表2 景观生态风险指数插值精度评价指标Tab. 2 Landscape ecological risk index interpolation precision evaluation index |
2000年 | 2005年 | 2010年 | 2015年 | 2020年 | |
---|---|---|---|---|---|
平均值(Mean) | -0.00004 | -0.00001 | -0.00003 | -0.00006 | -0.00013 |
均方根(RMS) | 0.01033 | 0.00938 | 0.00935 | 0.00931 | 0.01530 |
标准平均值(MSE) | -0.00350 | -0.00074 | 0.00229 | -0.00283 | -0.00483 |
标准均方根(RMSSE) | 1.22828 | 1.24761 | 1.05313 | 1.11263 | 1.03588 |
平均标准误差(ASE) | 0.00826 | 0.00671 | 0.00788 | 0.00718 | 0.00966 |
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