气候变化领域集成服务门户(CCPortal): Forestry impacts on stream flows and temperatures: A quantitative synthesis of paired catchment studies across the Pacific salmon range

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DOI	10.1002/2688-8319.12328
	Forestry impacts on stream flows and temperatures: A quantitative synthesis of paired catchment studies across the Pacific salmon range
	Naman, Sean M.; Pitman, Kara J.; Cunningham, Dylan S.; Potapova, Anna; Chartrand, Shawn M.; Sloat, Matthew R.; Moore, Jonathan W.
发表日期	2024
EISSN	2688-8319
起始页码	5
结束页码	2
卷号	5 期号:2
英文摘要	1. Forestry is pervasive across temperate North America and may influence aquatic environmental conditions such as flows and temperatures, as well as important species such as Pacific salmon (Oncorhynchus spp.). While there have been many large-scale forestry experiments using paired catchment designs, these studies have yet to be quantitatively synthesized. Thus, it remains unclear whether forestry impacts are consistent, context-dependent or unpredictable. 2. This study aims to quantitatively synthesize forestry impacts on streamflow and temperature, through a systematic review and synthesis of paired catchment studies across the range of Pacific salmon. Specifically, we investigated whether generalizable relationships exist between forestry intensity (percent watershed harvested) and impacts to streamflow and temperature. We also examined whether watershed features (climate, hydrology and lithology) and harvest method mediated forestry impacts. 3. We extracted information from 35 unique paired- catchments from California to Alaska. Forestry had strong impacts on peak and low flows and maximum summer water temperatures, but responses were quite variable. Across all catchments, forestry elevated peak flows similar to 20% ( n = 31 catchments), reduced low flows similar to 25% (n = 13 catchments) and increased maximum summer temperatures similar to 15% (n = 35 catchments) on average. However, these impacts were variable and were not predictable based on forestry intensity, thus broader stressor-response relationships were not supported. 4. Forestry impacts on peak flows and maximum summer temperatures varied spatially. Peak flow impacts increased with northward latitude and temperature impacts decreased with eastward longitude. However, the magnitude of impacts were unrelated to other watershed attributes, which included climate (precipitation and aridity), rain versus snow hydrology, elevation and bedrock lithology. Harvest method and riparian buffer presence also had no detected effects on forestry impacts across studies and statistical models explained a low proportion of variation overall. 5. Collectively, our results indicate that forestry can have substantial impacts on key environmental conditions; however, the magnitude of impact was variable and could not be clearly linked to easily measured watershed characteristics. This implies that forestry impacts may not be broadly predictable. Probabilistic risk models based on distributions of potential impacts may therefore be more useful for watershed management in data-poor situations.
英文关键词	forestry; hydrology; salmon; watersheds
语种	英语
WOS研究方向	Environmental Sciences & Ecology
WOS类目	Ecology
WOS记录号	WOS:001223182900001
来源期刊	ECOLOGICAL SOLUTIONS AND EVIDENCE
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/305258
作者单位	Fisheries & Oceans Canada; Simon Fraser University; Fisheries & Oceans Canada; Fisheries & Oceans Canada; Simon Fraser University
推荐引用方式 GB/T 7714	Naman, Sean M.,Pitman, Kara J.,Cunningham, Dylan S.,et al. Forestry impacts on stream flows and temperatures: A quantitative synthesis of paired catchment studies across the Pacific salmon range[J],2024,5(2).
APA	Naman, Sean M..,Pitman, Kara J..,Cunningham, Dylan S..,Potapova, Anna.,Chartrand, Shawn M..,...&Moore, Jonathan W..(2024).Forestry impacts on stream flows and temperatures: A quantitative synthesis of paired catchment studies across the Pacific salmon range.ECOLOGICAL SOLUTIONS AND EVIDENCE,5(2).
MLA	Naman, Sean M.,et al."Forestry impacts on stream flows and temperatures: A quantitative synthesis of paired catchment studies across the Pacific salmon range".ECOLOGICAL SOLUTIONS AND EVIDENCE 5.2(2024).