Christopher Wada
Restoring to the future: Environmental, cultural, and management trade-offs in historical versus hybrid restoration of a highly modified ecosystem
With growing calls to scale up reforestation efforts worldwide, conservation managers increasingly must decide whether and how to restore highly altered ecosystems. However, empirical research on potential trade-offs remains scarce. We use a Hawai’i watershed to demonstrate a collaborative, interdisciplinary approach to identifying synergies and trade-offs associated with maintaining an unrestored forest, versus restoration to […]
Read MoreEconomic Valuation of The Nature Conservancy’s Watershed Conservation Activities in Waikamoi Preserve, Maui
The objective of this research was to estimate the value of ecosystem services protected by watershed conservation activities at The Nature Conservancy’s Waikamoi Preserve on the island of Maui. Projections of monetized benefits, together with trajectories of conservation costs, were used to calculate net present value, payback period, and return on investment.
Read MorePublication: Joint Management of an Interconnected Coastal Aquifer and Invasive Tree
Kiawe (Prosopis pallida), a mesquite tree considered invasive in many parts of the world including Hawai’i, has been shown to reduce regional groundwater levels via deep taproots. In areas where aquifers are primary sources of fresh water, kiawe control has the potential to be an integral component of water management planning. We develop an analytical […]
Read MoreBringing multiple values to the table: assessing future land-use and climate change in North Kona, Hawai‘i
As ecosystem service assessments increasingly contribute to decisions about managing Earth’s lands and waters, there is a growing need to understand the diverse ways that people use and value landscapes. However, these assessments rarely incorporate the value of landscapes to communities with strong cultural and generational ties to place, precluding inclusion of these values—alongside others—into […]
Read MoreJoint Management of an Interconnected Coastal Aquifer and Invasive Tree
Kiawe (Prosopis pallida), a mesquite tree considered invasive in many parts of the world including Hawai‘i, has been shown to reduce regional groundwater levels via deep taproots. In areas where aquifers are primary sources of fresh water, kiawe control has the potential to be an integral component of water management planning. We develop an analytical […]
Read MoreEstimating Cost-Effectiveness of Hawaiian Dry Forest Restoration Using Spatial Changes in Water Yield and Landscape Flammability Under Climate Change
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 […]
Read MoreCost-Effectiveness of Herbicide Ballistic Technology to Control Miconia in Hawaii
By James Leary, Kimberly Burnett and Christopher Wada UHERO is working with Dr. James Leary (CTAHR) to assess cost effectiveness of Herbicide Ballistic Technology (HBT) operations to control invasive miconia (Miconia calvescens) plants before reaching maturity. Based on studies in Costa Rica, Tahiti and Australia, we can interpret spatial and temporal implications of management driven […]
Read MoreThe economic value of groundwater in Obama
Obama City has a population of 33,000 and is located in the central Wakasa district, in southwest Fukui Prefecture, Japan. Groundwater is used aboveground year round for commercial and domestic purposes and during winter months to melt snow. Submarine groundwater discharge along the coast supports a nearshore fishery in the region. Results from a choice-based […]
Read MoreBenefit-cost analysis of watershed conservation on Hawai‘i Island
In landscapes around the world, growing attention is being paid to the link between forest structure and water resources. More clarity is vital for informed decision making, especially as water scarcity continues to increase in many regions across the globe. The objective of this study is to estimate the volume of freshwater yield saved per […]
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