Forest canopy nitrogen uptake can supply entire foliar demand
Forest canopy nitrogen uptake can supply entire foliar demand
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DOI：
10.1111/1365-2435.14005
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发表时间：
2022-01
影响因子：
5.2
通讯作者：
Daniele Ferraretto;Richard Nair;Nadeem W. Shah;Dave Reay;Maurizio Mencuccini;Michael Spencer;Kate V. Heal
中科院分区：
文献类型：
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作者：
Daniele Ferraretto;Richard Nair;Nadeem W. Shah;Dave Reay;Maurizio Mencuccini;Michael Spencer;Kate V. Heal
1.植物冠层拦截、处理和潜在地吸收大气中的氮素，但冠层过程对氮素循环和植物营养的森林尺度效应尚不清楚。在以前的实验研究中存在大量的方法人为因素和缩放问题，这些实验研究测量相关的N通量（a）天然丰度，（B）通过15 N示踪剂或（c）通过将额外的15 N掺入测量的生物量，这意味着这些过程经常被忽视或忽视。2.在这里，在成熟的锡特卡云杉种植园工作，
1. Plant canopies intercept, process and potentially assimilate atmospheric nitrogen (N) additions, but the forest-scale effects of canopy processes on N cycling and plant nutrition are not clear. Substantial method artefacts and scaling issues exist in previous experimental studies which measure relevant N fluxes either at (a) natural abundance, (b) via a 15 N tracer or (c) by incorporation of additional 15 N into measured biomass, meaning these processes are often overlooked or discounted. 2. Here, working in a mature Sitka spruce plantation and