Small‐area patch merging is a common operation in land use data generalization. However, existing research on small‐area patch merging has mainly focused on local compatibility measures, which often lead to area imbalances among land use types from a global perspective. To address the shortcomings of previous studies by resolving local and global concerns simultaneously, this article proposes a merging method that considers both local constraints and the overall area balance. First, a local optimization model that considers three constraints—namely, the areas of neighboring patches, the lengths of shared arcs, and semantic similarity—is established. The areas of small patches are first pre‐allocated. Subsequently, in accordance with an area change threshold for individual land use types, land use types with area changes that exceed this threshold are identified. The patches corresponding to these land use types are subjected to iterative adjustments while considering the overall area balance. Based on their area splitting abilities, the split lines for small‐area patches are determined, and small‐area patches are merged. Finally, actual data from Guangdong Province are used for validation. The experimental results demonstrate that the proposed method is capable of preserving the local compatibility of patches while balancing the overall area associated with each land use type.

中文翻译：

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小区域补丁合并方法同时考虑了局部约束和总体区域平衡

小面积补丁合并是土地利用数据概括中的常见操作。但是，现有的有关小区域补丁合并的研究主要集中在局部兼容性措施上，从全球的角度来看，这常常导致土地利用类型之间的区域失衡。为了通过同时解决局部和全局问题来解决先前研究的不足，本文提出了一种兼顾局部约束和整体区域平衡的合并方法。首先，建立考虑三个约束条件的局部优化模型，即三个相邻面块的面积，共享弧的长度和语义相似性。小补丁区域首先被预先分配。随后，根据各个土地使用类型的面积变化阈值，确定面积变化超过此阈值的土地利用类型。在考虑总体面积平衡的同时，对与这些土地利用类型相对应的斑块进行迭代调整。根据其区域划分能力，确定小区域补丁的划分线，并合并小区域补丁。最后，使用广东省的实际数据进行验证。实验结果表明，提出的方法能够保持斑块的局部兼容性，同时平衡与每种土地利用类型相关的总面积。和小区域补丁合并。最后，使用广东省的实际数据进行验证。实验结果表明，提出的方法能够保持斑块的局部兼容性，同时平衡与每种土地利用类型相关的总面积。和小区域补丁合并。最后，使用广东省的实际数据进行验证。实验结果表明，提出的方法能够保持斑块的局部兼容性，同时平衡与每种土地利用类型相关的总面积。