In this study, a retrospective analysis of the relationship between the land use/land cover (LULC) change and associated surface urban heat island (SUHI) effect in fast-growing Greater Hefei between 1995 and 2016 was performed. Our results reveal the heterogeneous patterns of LULC change. The concentric buffer-based urban–rural gradient analysis reveals that most of the newly emerging developed land occurred within downtown Hefei. In contrast, in three suburban municipality/county jurisdictions, the overall area change in the non-developed land was much lower, but the net increase in developed land is remarkable. Meanwhile, the spatiotemporal patterns of SUHI are in good agreement with that of the developed land, as evidenced by the notable increase in SUHI intensity (SUHII) levels and SUHI spatial extent (SUHISE) in response to the rapid urban expansion, particularly along transportation corridors. In addition, partial least square regression (PLSR) models indicate that the buffer-based predictors/independent variables are significantly related to the responses (SUHII and SUHISE), explaining approximately 61.3% of the variance in the SUHII and 79.8% of the variance in the SUHISE, respectively. Furthermore, the relative strength of the independent variables in determining the relationship was quantitatively examined. The findings of this study provide clear evidence for decision making for sustainable land development and mitigation of the SUHI effect.

中文翻译：

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研究快速发展的大合肥市的土地利用/土地覆盖变化和夏季地表城市热岛效应：对土地可持续发展的启示

在这项研究中，对1995年至2016年间快速发展的大合肥市的土地利用/土地覆被（LULC）变化与相关的地表城市热岛（SUHI）效应之间的关系进行了回顾性分析。我们的结果揭示了LULC变化的异构模式。基于同心缓冲区的城乡梯度分析显示，大多数新兴土地都在合肥市区内。相比之下，在三个郊区市/县辖区中，未开发土地的总体面积变化要低得多，但已开发土地的净增长却是显着的。同时，SUHI的时空格局与发达土地的格局非常吻合，SUHI强度（SUHII）水平和SUHI空间范围（SUHISE）随城市快速扩张（尤其是沿交通走廊）的显着增长而得到证明。此外，偏最小二乘回归（PLSR）模型表明，基于缓冲区的预测变量/独立变量与响应（SUHII和SUHISE）显着相关，解释了SUHII中约61.3％的方差和HIHII中79.8％的方差。 SUHISE，分别。此外，定量检查了确定关系的自变量的相对强度。这项研究的结果为可持续土地开发和减轻SUHI效应的决策提供了明确的证据。偏最小二乘回归（PLSR）模型表明，基于缓冲区的预测变量/独立变量与响应（SUHII和SUHISE）显着相关，解释了SUHII中约61.3％的方差和SUHISE中79.8％的方差，分别。此外，定量检查了确定关系的自变量的相对强度。这项研究的结果为可持续土地开发和减轻SUHI效应的决策提供了明确的证据。偏最小二乘回归（PLSR）模型表明，基于缓冲区的预测变量/独立变量与响应（SUHII和SUHISE）显着相关，解释了SUHII中约61.3％的方差和SUHISE中79.8％的方差，分别。此外，定量检查了确定关系的自变量的相对强度。这项研究的结果为可持续土地开发和减轻SUHI效应的决策提供了明确的证据。定量检查了确定关系的自变量的相对强度。这项研究的结果为可持续土地开发和减轻SUHI效应的决策提供了明确的证据。定量检查了确定关系的自变量的相对强度。这项研究的结果为可持续土地开发和减轻SUHI效应的决策提供了明确的证据。