气候变化领域集成服务门户(CCPortal): Does the buffer width matter: Testing the effectiveness of forest certificates in the protection of headwater stream ecosystems

CCPortal

DOI	10.1016/j.foreco.2020.118532
	Does the buffer width matter: Testing the effectiveness of forest certificates in the protection of headwater stream ecosystems
	Jyväsjärvi J.; Koivunen I.; Muotka T.
发表日期	2020
ISSN	0378-1127
卷号	478
英文摘要	Forest harvest has multiple impacts on adjoining freshwater ecosystems, particularly headwater streams which typically receive minimal protection against forestry. However, evidence on the effectiveness of differently sized riparian buffers remains limited. Using data from two discrete regions of Finland, we assessed the effectiveness of riparian buffers in providing protection for the riparian and stream environment, benthic invertebrate diversity and species composition, and ecosystem functioning of boreal headwater streams. Our study included streams with both wide (>15 m) and narrow (<15 m) riparian buffers, enabling comparison of the two dominant forest certificates (FSC and PEFC). Compared to unharvested reference streams, nutrient concentrations as well as stream and riparian light intensity and temperature were higher at forestry-impacted sites. The amount of woody debris, cover of aquatic mosses and particulate organic matter standing stock were strongly reduced in streams draining harvested forests, especially in narrowly buffered streams. Changes in light and nutrient conditions induced a transition towards more autotrophic conditions. Organic matter decomposition rates were elevated in forestry-impacted sites only in the southern region. Forest harvest decreased macroinvertebrate diversity and evenness, and altered community composition in the northern region, but much weaker changes were observed in the southern region. Our findings support the retention of riparian buffers, but also confirm that their effectiveness depends on the environmental context and thus remains poorly predictable. Our results also suggest that the widely applied PEFC certification does not provide sufficient protection for stream ecosystems and more stringent protocols are needed to ensure ecological sustainability of forestry. © 2020 Elsevier B.V.
英文关键词	Benthic invertebrates; Buffer management; Decomposition; Ecosystem processes; Forestry
语种	英语
scopus关键词	Biogeochemistry; Data streams; Ecosystems; Forestry; Harvesting; Nutrients; Organic compounds; Sustainable development; Timber; Benthic invertebrates; Community composition; Ecological sustainability; Environmental contexts; Macroinvertebrate diversities; Nutrient concentrations; Organic matter decomposition; Particulate organic matters; Rivers; autotrophy; buffer zone; certification; community composition; decomposition; environmental management; headwater; invertebrate; macroinvertebrate; particulate organic matter; prediction; riparian vegetation; Ecosystems; Forestry; Harvesting; Nutrients; Organic Compounds; Rivers; Finland; Bryophyta; Invertebrata
来源期刊	Forest Ecology and Management
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/154953
作者单位	University of Oulu, Ecology and Genetics Research Unit, P.O. Box 3000, Oulu, FI-90014, Finland; Finnish Environment Institute, Freshwater Centre, P.O. Box 413, Oulu, FI-90014, Finland
推荐引用方式 GB/T 7714	Jyväsjärvi J.,Koivunen I.,Muotka T.. Does the buffer width matter: Testing the effectiveness of forest certificates in the protection of headwater stream ecosystems[J],2020,478.
APA	Jyväsjärvi J.,Koivunen I.,&Muotka T..(2020).Does the buffer width matter: Testing the effectiveness of forest certificates in the protection of headwater stream ecosystems.Forest Ecology and Management,478.
MLA	Jyväsjärvi J.,et al."Does the buffer width matter: Testing the effectiveness of forest certificates in the protection of headwater stream ecosystems".Forest Ecology and Management 478(2020).