Spatial optimization of watershed best management practice scenarios based on boundary-adaptive configuration units (基于边界自适应配置单元的流域最佳管理措施情景空间优化)

朱良君, 秦承志*, 朱阿兴

English version

概述

流域最佳管理措施(BMP)情景空间优化可为流域治理提供有效的决策支持。 现有BMP情景空间优化方法通常采用边界固定的空间单元进行BMP空间配置,因而完全忽略了构建解空间的一个维度 ——空间配置单元边界动态调整所带来的BMP配置面积的变化,即不能从空间配置单元边界调整的角度出发实现 BMP配置面积优化。本文提出了一种基于边界自适应配置单元进行BMP情景空间优化的新方法。

坡位(如山脊、背坡、沟谷)直接对应了坡面上的地形部位,是对地形的综合体现, 不但与坡面过程的上下游关系直接关联,且与流域综合治理模式中定性描述坡面上BMP配置的空间单元概念相对应 ——流域综合治理模式常体现为不同BMP在不同坡位单元间的空间组合。采用坡位单元作为BMP空间配置单元能够充分 考虑坡面BMP配置的上下游关系知识,得到符合地学意义和实际管理经验的BMP情景集,且具有较高的优化效率 (Qin等,2018Zhu等,2019)。

坡位普遍具有空间渐变、边界模糊的特点。因此,同一坡面内相邻两类坡位交替处 的模糊坡位相似度值均较低,将这些位置划分为任一一类坡位均具有合理性。 据此思路,本文采用“动态阈值法”设计了坡位单元边界动态调整策略,并应用于 BMP情景空间优化中以实现空间配置单元的自适应边界优化。

案例研究表明,所提基于边界自适应配置单元的BMP情景空间优化方法可以显著 扩大最优解的搜索空间,与边界固定的坡位单元相比,能够得到综合成本­效益更优的BMP情景集,且具有更高的优化效率。

所提方法为BMP情景空间优化提供了一个新的框架,其他分布式流域过程模型、智能优化算法以及支持边界调整的空间单元 均可以实现在该框架下,从而以BMP配置单元边界自适应的方式进行BMP情景空间优化。

同时,本文例证了将定性的、模糊的和经验性的地理知识(如与坡位单元相关的坡面自然过程知识和BMP配置知识) 转化为定量的、显式的、自动化的地理空间算法的潜力,从而以具有地学意义的方式有效地解决环境管理问题。

会议报告

  • 流域最佳管理措施空间配置单元边界优化方法. 中国地理信息科学理论与方法学术年会, 2019, 10.18-–20, 上海. 下载会议PPT (备用下载链接)

  • New optimization framework of watershed best management practice scenarios in a unit-boundary adaptive manner, 10th iEMSs Conference (Online), Sep. 14–18, 2020. Brussels. 会议PPT下载备用下载链接)。

软件

评审历史

  • 投稿: 2020-2-1

  • 等待指派编辑: 2020-2-1, ADM: Brian, Jayne (副主编)

  • 等待筛选审稿人: 2020-2-10, ADM: Malanson, George (总编辑)

  • 等待指派审稿人: 2020-2-15, 随后更改为等待筛选审稿人, 然后改为等待指派审稿人 (2020-3-5)

  • 等待审稿人意见: 2020-3-11

  • 等待最终决定: 2020-4-13

  • 小修: 2020-4-15

    • 审稿意见1: I like this contribution, and congratulate the authors for a thoughtful, insightful and substantive piece of work. I must confess, up-front, that this paper is not in my direct area of expertise, so I am unable to address any issues for technical aspects of this paper, but the rationale for the work is clear, and the specific contribution of the study is well validated. The paper is clear and well written. The structure works well, with clear articulation of extensions to previous methodological approaches (i.e. building upon Qin et al., 2018). I applaud the effective documentation of the case study – it works well, amply justifying the approach and substantiating the contribution of the paper. Ultimately, I completely agree with the premise of this paper – we need more flexible approaches to boundary identification and mapping to inform management applications (including use of optimization procedures). I have just one suggestion. In order to promote uptake of this work, capturing a wider readership and potential citations, I wonder if the generic nature of the approach could be expressed explicitly. This could simply take the form of an additional sentence or two early in the introduction, broadening the scope for the issues addressed in this study. Associated with this point, I have a minor gripe at the end of the discussion, as I expected to see more substantive contextualization of findings of this work, relating the contribution more effectively to the international literature (and associated implications). If this issue was addressed, and a sentence to this effect was included within the abstract, I sense that there may be wider uptake of this paper. I always appreciate it when I can glean the core contribution from papers that are outside my core area of expertise.

    • 审稿意见2: The manuscript is very interesting. I think it is in the scope of Progress in Physical Geography. My comments: (1) “Boundary-adaptive configuration units” is actually according to slope positions in this paper, and BMP configuration units and dynamically adjusts their boundaries by using the quantitative information on their spatial gradation. Is it right the boundary-adaptive configuration units were for slope positions, not for BMPs? (2) BMPs are management plans directly implemented by farmers or the government. It doesn't mean very much by fluctuating management practices in reality. The authors need to justify that the given work is practically useful in the real world. (3) The methods may be suitable for BMPs practices of soil erosion control. Could it be used to TN and TP control? Do explain.

  • 小修后提交,等待主编处理,等待筛选审稿人 (ADM: Brian, Jayne): 2020-5-12

  • 接收: 2020-6-3 (于2020-6-2询问进展)

    • 等待编辑核对材料列表: 2020-6-3

    • 期刊生产部门开始进行文字编辑: 2020-6-16

    • 校稿: 2020-7-10

    • 第二次校稿: 2020-7-24

    • 在线发表: 2020-7-28

    • 在第45卷第2期刊出: 2021-4-8

引用格式

Zhu, L.J., Qin, C.Z., and Zhu, A.X., 2021. Spatial optimization of watershed best management practice scenarios based on boundary-adaptive configuration units, Progress in Physical Geography: Earth and Environment, 45(2):207–227. doi:10.1177/0309133320939002

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