干旱或半干旱地区的植被恢复战略--从优化控制的角度。

IF 2.7 2区 数学 Q1 MATHEMATICS, APPLIED
Chaos Pub Date : 2024-11-01 DOI:10.1063/5.0206880
Li-Feng Hou, Shu-Peng Gao, Li-Li Chang, Yong-Ping Wu, Guo-Lin Feng, Zhen Wang, Gui-Quan Sun
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引用次数: 0

摘要

人类的不当活动导致了干旱或半干旱地区生态系统的退化。因此,强调这些地区植被恢复战略的重要性再怎么强调也不为过。然而,对于如何以最小的成本制定有效的恢复策略,目前还没有足够的研究。本文针对这一空白,研究如何通过局部和边界控制优化人类活动的时空分布,降低植被模式结构的荒漠化程度,从而促进干旱地区植被的恢复。结果表明,植被恢复取决于人类活动区域的比例和数量,两者之间需要权衡。此外,在圆形区域也得出了一致的结论,证明了该方法对边界形状的稳健性。本文旨在从最优控制的角度,为干旱地区植被恢复和预防灾难性生态系统变化提供新的见解。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Vegetation restoration strategies in arid or semi-arid regions-From the perspective of optimal control.

Inappropriate human activities contribute to the degradation of ecosystems in arid or semi-arid regions. Therefore, emphasizing the importance of strategies for restoring vegetation in these areas cannot be overstated. However, there has been insufficient research on how to develop effective restoration strategies at minimal cost. This paper addresses this gap by studying how optimizing the spatiotemporal distribution of human activities through local and boundary controls can reduce the level of desertification in vegetation pattern structures, thereby facilitating the recovery of arid land vegetation. The results indicate that vegetation restoration depends on the proportion and number of human activity areas, with a trade-off between them. Furthermore, consistent conclusions were obtained on circular regions, demonstrating the robustness of the approach to boundary shapes. This paper aims to offer new insights into the restoration of arid land vegetation and the prevention of catastrophic ecosystem changes from the perspective of optimal control.

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来源期刊
Chaos
Chaos 物理-物理:数学物理
CiteScore
5.20
自引率
13.80%
发文量
448
审稿时长
2.3 months
期刊介绍: Chaos: An Interdisciplinary Journal of Nonlinear Science is a peer-reviewed journal devoted to increasing the understanding of nonlinear phenomena and describing the manifestations in a manner comprehensible to researchers from a broad spectrum of disciplines.
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