Document


Title

Estimating cost-effectiveness of Hawaiian dry forest restoration using spatial changes in water yield and landscape flammability under climate change
Document Type: Journal
Author(s): C. A. Wada ; L. L. Bremer ; K. Burnett ; C. Trauernicht ; T. Giambelluca ; L. Mandle ; D. Parsons ; C. Well ; N. Kurashima ; T. Ticktin
Publication Year: 2017

Cataloging Information

Keyword(s):
biodiversity; climate change; ecosystem services; flammability; moisture; opportunities; policy; rainfall; watersheds; wildfire
Region(s):
Record Maintained By:
Record Last Modified: June 1, 2018
FRAMES Record Number: 55736
Tall Timbers Record Number: 33810
TTRS Location Status: Not in file
TTRS Call Number: Available via ILL only
TTRS Abstract Status: Fair use

This bibliographic record was either created or modified by the Tall Timbers Research Station and Land Conservancy and is provided without charge to promote research and education in Fire Ecology. The E.V. Komarek Fire Ecology Database is the intellectual property of the Tall Timbers Research Station and Land Conservancy.

Description

Resource managers increasingly seek to implement cost-effective-watershed restoration plans for multiple ecosystem service benefits. Using locally adapted ecosystem service tools and historical management costs, we quantified spatially explicit management costs and benefits (in terms of groundwater recharge and landscape flammability) to assist a state agency in evaluating cobenefits for a predefined restoration scenario (focused on biodiversity benefits) and to prioritize an expanded restoration scenario in the state-managed Pu'u Wa'awa'a watershed (Hawai'i) now and under the Representative Concentration Pathway (RCP) 8.5 midcentury climate scenario. Restoring all available -areas increases recharge by ~ 1.74 million m3/yr (5% of recharge over the entire watershed) under the current climate and does not meaningfully change recharge under RCP 8.5 midcentury, whereas climate change decreases recharge by similar to 50%. For landscape flammability, climate change increases the median and maximum probability of fire occurrence across all land use scenarios, and full restoration results in the greatest reduction in landscape flammability under both current and RCP 8.5 midcentury climate scenarios. We demonstrate that location and type of forest restoration influence overall cost-effectiveness of - restoration, providing insights for landscape planning for ecosystem services under a limited budget. Across all scenarios, capturing potential benefits at low elevations requires greater expenditures ($13,161/ha) than at high elevations ($5,501/ha) due mainly to the substantial costs of removing Pennisetum setaceum (fountain grass), the dominant land cover below 1,000 m. If management focuses on groundwater recharge only, the most cost-effective areas occur at high elevations (>1,000 m), with ample fog interception, although recharge benefits decline across the landscape under RCP 8.5 midcentury. Focusing instead on cost-effective landscape flammability reduction as the primary management objective shifts emphasis toward dry low-elevation areas under the current climate. However, under the RCP 8.5 midcentury scenario, the most cost-effective areas for flammability management shift toward higher elevations with greater potential overlap with recharge benefits. © 2017 University of Hawaii Press.

Online Link(s):
Citation:
Wada, C. A. et al. 2017. Estimating cost-effectiveness of Hawaiian dry forest restoration using spatial changes in water yield and landscape flammability under climate change. Pacific Science, v. 71, no. 4, p. 401-424. 10.2984/71.4.2.