Imposing connectivity constraints in forest planning models

Rodolfo Carvajal, Miguel Constantino, Marcos Goycoolea, Juan Pablo Vielma, Andrés Weintraub

Research output: Contribution to journalArticlepeer-review

78 Scopus citations

Abstract

Connectivity requirements are a common component of forest planning models, with important examples arising in wildlife habitat protection. In harvest scheduling models, one way of addressing preservation concerns consists of requiring that large contiguous patches of mature forest are maintained. In the context of nature reserve design, it is common practice to select a connected region of forest, as a reserve, in such a way as to maximize the number of species and habitats protected. Although a number of integer programming formulations have been proposed for these forest planning problems, most are impractical in that they fail to solve reasonably sized scheduling instances. We present a new integer programming methodology and test an implementation of it on five medium-sized forest instances publicly available in the Forest Management Optimization Site repository. Our approach allows us to obtain near-optimal solutions for multiple time-period instances in fewer than four hours.

Original languageEnglish
Pages (from-to)824-836
Number of pages13
JournalOperations Research
Volume61
Issue number4
DOIs
StatePublished - Jul 2013

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