气候变化领域集成服务门户(CCPortal): Valuation of forest-management and wildfire disturbance on water and carbon fluxes in mountain headwaters

CCPortal

DOI	10.1002/eco.2642
	Valuation of forest-management and wildfire disturbance on water and carbon fluxes in mountain headwaters
	Chung, Min Gon; Guo, Han; Nyelele, Charity; Egoh, Benis N.; Goulden, Michael L.; Keske, Catherine M.; Bales, Roger C.
发表日期	2024
ISSN	1936-0584
EISSN	1936-0592
起始页码	17
结束页码	3
卷号	17 期号:3
英文摘要	Recent drought, wildfires and rising temperatures in the western US highlight the urgency of increasing resiliency in overstocked forests. However, limited valuation information hinders the broader participation of beneficiaries in forest management. We assessed how historical disturbances in California's Central Sierra Nevada affected live biomass, forest water use and carbon uptake and estimated marginal values of these changes. On average, low-severity wildfire caused greater declines in forest evapotranspiration (ET), gross primary productivity (GPP) and live biomass than did commercial thinning. Low-severity wildfires represent proxies for prescribed burns and both function as biomass removal to alleviate overstocked conditions. Increases in potential runoff over 15 years post-disturbance were valued at $108,000/km2 for commercial thinning versus $234,000/km2 for low-severity wildfire, based on historical water prices. Respective declines in GPP were valued at -$305,000 and -$1,317,000/km2, based on an average social cost of carbon. Considering biomass levels created by commercial thinning and low-severity fire as more-sustainable management baselines for overstocked forests, carbon uptake over 15 years post-disturbance can be viewed as a benefit rather than loss. Realizing this benefit upon management re-entry may require sequestering thinned material. High-severity wildfire and clearcutting resulted in greater declines in ET and thus greater potential water benefits but also substantial declines in GPP and live carbon. These lessons from historical disturbances indicate what benefit ranges from fuels treatments can be expected from more-sustainable management of mixed-conifer forests and the importance of setting an appropriate baseline.
英文关键词	carbon stability; forest management; land ownership; nature-based solution; runoff; valuation; wildfire
语种	英语
WOS研究方向	Environmental Sciences & Ecology ; Water Resources
WOS类目	Ecology ; Environmental Sciences ; Water Resources
WOS记录号	WOS:001193090600001
来源期刊	ECOHYDROLOGY
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/300752
作者单位	University of California System; University of California Merced; University of Colorado System; University of Colorado Boulder; University of California System; University of California Irvine; University of Virginia
推荐引用方式 GB/T 7714	Chung, Min Gon,Guo, Han,Nyelele, Charity,et al. Valuation of forest-management and wildfire disturbance on water and carbon fluxes in mountain headwaters[J],2024,17(3).
APA	Chung, Min Gon.,Guo, Han.,Nyelele, Charity.,Egoh, Benis N..,Goulden, Michael L..,...&Bales, Roger C..(2024).Valuation of forest-management and wildfire disturbance on water and carbon fluxes in mountain headwaters.ECOHYDROLOGY,17(3).
MLA	Chung, Min Gon,et al."Valuation of forest-management and wildfire disturbance on water and carbon fluxes in mountain headwaters".ECOHYDROLOGY 17.3(2024).