黄河流域甘肃段国土空间的多功能特征
孙治芳 , 刘学录 , 李晓丹 , 王淑媛 , 孙静 , 徐一恒
甘肃农业大学学报 ›› 2022, Vol. 57 ›› Issue (06) : 164 -176.
黄河流域甘肃段国土空间的多功能特征
Multifunctional characteristics of land use in Gansu section of Yellow River Basin
目的 分析黄河流域甘肃段9个市域的土地利用多功能特征,为面向高质量发展的黄河流域国土空间开发保护格局优化提供依据。 方法 采用多指标综合评价法、耦合协调度指数、比较优势指数等方法对土地多功能利用的时空差异性演变特征进行评价。 结果 从时间上看,市域土地利用多功能以及生态功能水平整体上呈现波动上升趋势;生产功能上定西市与甘南州有明显提升,其余各市域均维持稳定或有微量下降;生活功能变化不显著,整体有微量提升。空间上,市域综合功能表现为中心强边缘弱的格局特点,生态功能与生产、生活功能呈现反制现象。9市“三生空间”功能的协调类型以轻度失调为主,总体呈现“中南部高北部低”的空间分布形态。兰州、定西、庆阳3市在生产功能上具有比较优势;兰州、临夏、天水、平凉4市(州)在生活功能上具有比较优势;白银、甘南、庆阳、武威4市州在生态功能上具有明显优势特征。 结论 黄河流域甘肃段土地多功能利用水平市域之间存在较大差异,总体呈现“强少弱多”的格局;土地多功能利用的耦合协调类型以轻度失调和中度失调为主,从空间分布格局上看,耦合协调度呈现“中心高外围低”的空间分布形态;功能的比较优势指数,表明生产、生活、生态以及生产-生活、生产-生态、生活-生态6种优势功能区在黄河流域甘肃段分布较为均衡。
Objective To analyze the multi-functional characteristics of land use of 9 cities in Gansu section of the Yellow River Basin,and to provide optimization basis for land spatial development and protection pattern armed at the high-quality development. Method The spatial-temporal variation of land multifunctional use was evaluated by multi-index comprehensive evaluation,coupling degree of coordination index and comparative advantage index. Result From the perspective of time,the level of multifunctional land use and ecological function in the city showed a fluctuating trend;In terms of production function,Dingxi City and Gannan Prefecture had a significant increase,while the other cities maintained a stable or slightly decreased;The change of life function is not significant,the whole has a little improvement.Spatially,the comprehensive function of the city is characterized by strong center and weak edge,and the ecological function is counterbalanced with the production and living function.The coordination types of land multifunctional availability were mainly mild disordered,showing a spatial distribution pattern of "high in the central south and low in the north".The three cities of Lanzhou,Dingxi and Qingyang have comparative advantages in production function.Lanzhou,Linxia,Tianshui,Pingliang 4 cities (prefectures) have comparative advantages in life function;The four cities of Baiyin,Gannan,Qingyang and Wuwei have obvious advantages in ecological function. Conclusion The level of multifunctional land use in Gansu section of the Yellow River Basin is different among cities,showing a pattern of "less strong and more weak".The coupling coordination types of land multifunctional use were mainly mild and moderate dissonance.From the perspective of spatial distribution pattern,the coupling coordination degree showed a spatial distribution pattern of "high in the center and low in the periphery".The index of functional comparative advantage shows that the distribution of six functional advantage areas,namely,production,living,ecology,production-living,production-ecology and life-ecology,is more balanced in the Gansu section of the Yellow River Basin.
土地多功能利用 / 黄河流域 / 优势指数 / 耦合协同关系
multifunctional use of land / Yellow River Basin / comparative advantage index / coupling synergy
RCAij =(Xij/Yi)/(Xwj/Yw)
C=[XYZ/(X+Y+Z)]1/3;T=αX +βY +γZ
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甘肃省国土空间规划前期专题研究项目(XZ0606)
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