林冠 - Wikiwand

在生物学中，林冠是指植物群落或农作物里的离地部分，特别是树林中各棵林木树冠（单一树木主干以上的部分）组成的连续状态集合体^[1]^[2]^[3]。林冠包括了树冠所有的叶片、枝条、小枝及附生植物^[4]。林冠通过捕获太阳能并驱动水分在土壤和大气之间的交换，成为陆地生命形式的中心和食物链的基础^[5]。全球90%以上的生物量都是通过林冠与大气层发生作用形成的^[6]。林冠被称为“最后的生物前沿”、“地球的第八大洲”^[5]^[7]。

有时该术语林冠，是用来指个别树或一组的树木的叶子的外层的范围。通常一棵树有茂密的树冠，会阻止阳光照到在低处生长的植物。

参考

[1]
Campbell, G.S., and J.M. Norman. 1990. The description and measurement of plant canopy structure. pp. 1-19 In: Russell, G., B. Marshall, and P.G. Jarvis (editors). Plant Canopies: Their Growth, Form and Function. Cambridge University Press.
[2]
Moffett, M.W. 2000. What's up? A critical look at the basic terms of canopy biology. Biotropica 32:569-596.
[3]
Hay, R., and R. Porter. 2006 Physiology of Crop Yield (Second edition). Wiley-Blackwell. ISBN 1405108592, ISBN 978-1405108591
[4]
Nadkarni; Nalini M. Parker, Geoffrey G. Ford, E. David Cushing, Judy B. Stallman, Cara. The International Canopy Network: A pathway for interdisciplinary exchange of scientific information on forest canopies (PDF). Northwest Science. 1996, (70): 104–108 [2016-05-12]. （原始内容存档 (PDF)于2020-08-21）.
[5]
Lowman, Margaret D.; Schowalter, Timothy D. Plant science in forest canopies – the first 30 years of advances and challenges (1980–2010). New Phytologist. 2012-04, 194 (1): 12–27. doi:10.1111/j.1469-8137.2012.04076.x.
[6]
Ozanne, CM; Anhuf, D; Boulter, SL; Keller, M; Kitching, RL; Körner, C; Meinzer, FC; Mitchell, AW; Nakashizuka, T; Dias, PL; Stork, NE; Wright, SJ; Yoshimura, M. Biodiversity meets the atmosphere: a global view of forest canopies.. Science (New York, N.Y.). 2003-07-11, 301 (5630): 183–6. PMID 12855799. doi:10.1126/science.1084507.
[7]
Stork, Nigel E. Editorial: Dynamics and processes in the canopy of an Australian tropical rainforest. Austral Ecology. 2007-02, 32 (1): 2–3. doi:10.1111/j.1442-9993.2007.01742.x.

林冠

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