Long-term effects of riparian forest harvest on light in Pacific Northwest (USA) streams
Long-term effects of riparian forest harvest on light in Pacific Northwest (USA) streams
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河岸森林采伐对太平洋西北地区（美国）溪流光的长期影响
DOI：
10.1086/690624
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发表时间：
2017
影响因子：
1.8
通讯作者：
Kiffney, Peter M.
中科院分区：
文献类型：
--
作者：
Kaylor, Matthew J.;Warren, Dana R.;Kiffney, Peter M.
河岸林通过调节光照对邻近河流的生物和非生物过程产生强烈的影响。河岸森林的采伐曾经是常见的做法，因此，北美各地的许多河边森林在再生时处于不同的发展阶段，从而影响了溪流光照状况。我们使用了2种方法来评估河岸林采伐和林分恢复对小山溪光能利用率的影响。我们估计光和树冠覆盖每25米沿着11.5公里的第四阶流网络为主的后期演替河岸森林，其中包括7个河边收获单位50至60岁。流光通量的估计是较低的收获单位比在上游和下游部分接壤的古老的森林，即使只有1个流银行收获的7个单位中的5个。流光之间的差异收获达到和相邻的老增长部分更大时，双方银行已被记录。我们还进行了一个时空分析的基础上，美国太平洋西北部的道格拉斯冷杉为主的森林的文献综述。冠层关闭一般发生在收获后30年内，随后是一个持续30至100年的最大冠层覆盖（最小光照）时期。数据有限的立场，从100到300岁，但平均树冠开放度和变化的开放度沿着流更大的演替后期森林（占主导地位的树冠树木>300岁）比30至100岁的立场（18比8.7%），与网络分析的结果一致。从我们的研究的总体结果表明，流与中期演替河岸森林可能是在夏季光通量最小的时期。
Riparian forests exert strong influence on abiotic and biotic processes in adjacent streams by regulating light. Harvesting of riparian forests was once common practice, and consequently, many streamside forests across North America are in varying stages of development as they regenerate, thereby affecting stream light regimes. We used 2 approaches to evaluate the influence of riparian forest harvest and stand recovery on light availability in small mountain streams. We estimated light and canopy cover every 25 m along 11.5 km of a 4th-order stream network dominated by late-successional riparian forests that included 7 streamside harvest units 50 to 60 y old. Estimates of stream light fluxes were lower in harvest units than in up- and downstream sections bordered by old-growth forests even though only 1 stream bank was harvested in 5 of 7 units. Differences in stream light between harvested reaches and adjacent old-growth sections were greater when both banks had been logged. We also conducted a space-for-time analysis based on a literature review of Douglas fir-dominated forests of the US Pacific Northwest. Canopy closure generally occurred within 30 y of harvest and was followed by a period of maximum canopy cover (minimum light) that lasted from 30 to 100 y. Data were limited for stands ranging from 100 to 300 y old, but mean canopy openness and variability in openness along the stream were greater in late-successional forests (dominant canopy trees >300 y old) than in stands that were 30 to 100 y old (18 vs 8.7%), a result consistent with the network analysis. Overall results from our study suggest that streams with mid-successional riparian forests probably are in a period of minimal summer light fluxes.
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影响因子：
6.3
作者：
G. Reeves;Jack E. Williams;K. Burnett;K. Gallo
通讯作者：
K. Gallo
俄勒冈州沿海山区的河岸树木、灌木和森林再生
影响因子：
2.2
作者：
D. Minore;H. G. Weatherly
通讯作者：
H. G. Weatherly
流域规模的农业土地利用对六级温带河流沿岸底栖光可用性和初级生产的影响
影响因子：
3.7
作者：
Jason P. Julian;Jason P. Julian;Emily H. Stanley;Martin W. Doyle
通讯作者：
Martin W. Doyle
华盛顿州西部河流温度与森林采伐的关系 1
DOI：
10.1111/j.1752-1688.2008.00266.x
发表时间：
2009
期刊：
JAWRA Journal of the American Water Resources Association
影响因子：
--
作者：
M. Pollock;T. Beechie;M. Liermann;R. Bigley
通讯作者：
R. Bigley
海狸作为工程师：对排水盆地生物和非生物特征的影响
影响因子：
4.8
作者：
M. Pollock;R. Naiman;H. Erickson;C. Johnston;J. Pastor;G. Pinay
通讯作者：
G. Pinay