Optimal Control of Spatial-Dynamic Processes: The Case of Biological Invasions

Optimal Control of Spatial-Dynamic Processes: The Case of Biological Invasions
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空间动态过程的最优控制:生物入侵案例

DOI:
10.2139/ssrn.1776244
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发表时间:
2011
期刊:
Agricultural & Natural Resource Economics eJournal
影响因子:
--
通讯作者:
J. Wilen
J. Wilen
中科院分区:
--
文献类型:
--
作者:
R. Epanchin‐Niell;J. Wilen

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本研究探讨了最佳生物入侵控制的空间性质。我们开发了一个空间上明确的二维模型的物种传播,允许跨空间和时间的差分控制,我们解决了最佳的空间动态控制策略。我们发现,最佳策略依赖于有趣的方式上的形状的景观和位置,形状,和入侵的连续性。例如,改变入侵的形状或使用景观特征来减少暴露的入侵边缘的程度可能是最佳策略,因为它降低了长期遏制成本。我们还表明,战略应该有针对性地减缓或防止入侵的蔓延方向最大的潜在的长期损害。这些空间明确的最优政策的特点,主要是非空间文献控制入侵和我们的一般理解如何控制空间动态过程。
This study examines the spatial nature of optimal bioinvasion control. We develop a spatially explicit two-dimensional model of species spread that allows for differential control across space and time, and we solve for optimal spatial-dynamic control strategies. We find that the optimal strategies depend in interesting ways on the shape of the landscape and the location, shape, and contiguity of the invasion. For example, changing the shape of the invasion or using landscape features to reduce the extent of exposed invasion edge can be an optimal strategy because it reduces long-term containment costs. We also show that strategies should be targeted to slow or prevent the spread of an invasion in the direction of greatest potential long-term damages. These spatially explicit characterizations of optimal policies contribute to the largely nonspatial literature on controlling invasions and our general understanding of how to control spatial-dynamic processes.
在细胞自动机模型中,定植的随机性如何加速入侵速度?
DOI: --
发表时间: 2006
期刊: Ecological Research 21
影响因子: --
作者:
Kohkichi Kawasaki;Fugo Takasu;Hal Caswell and Nanako Shigesada
通讯作者: Hal Caswell and Nanako Shigesada