Relationships between nitrogen, acid-unhydrolyzable residue, and climate among tree foliar litters

被引：10

作者：

Berg, Bjorn ^{[1
]}

Liu, Chunjiang ^{[2
,3
]}

Laskowski, Ryszard ^{[4
]}

Davey, Matthew ^{[5
]}

机构：

[1] Univ Helsinki, Dept Forest Sci, FIN-00014 Helsinki, Finland

[2] Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China

[3] Minist Agr, Key Lab Urban Agr S, Shanghai 200240, Peoples R China

[4] Jagiellonian Univ, Inst Environm Sci, PL-30387 Krakow, Poland

[5] Univ Cambridge, Dept Plant Sci, Cambridge CB2 3EA, England

来源：

CANADIAN JOURNAL OF FOREST RESEARCH | 2013年 / 43卷 / 01期

关键词：

LONG-TERM DECOMPOSITION; LEAF-LITTER; SCOTS PINE; NEEDLE LITTER; LIGNIN; TRANSECT; QUALITY; RATES;

D O I：

10.1139/cjfr-2012-0385

中图分类号：

S7 [林业];

学科分类号：

0829 ; 0907 ;

摘要：

Using literature data, we investigated coniferous and broadleaf litter from 58 tree species using a database encompassing concentrations of N and acid-unhydrolyzable residue (AUR) (gravimetric lignin) in newly shed litter, mean annual temperature, and mean annual precipitation. Our aims were to (i) demonstrate any large-scale relationships between concentrations of N and AUR in foliar litter and (ii) determine differences in this respect among litter from Pinus and Quercus. To this end, we had collected foliar litter data for Asia and Europe, forming a climate gradient. Litter from broadleaf and coniferous trees differed significantly in concentrations of N (p < 0.0001, 9.64 versus 5.50 mg/g, respectively) and AUR (p < 0.0001, 219 versus 292 mg/g, respectively). There were highly significant positive linear relationships between concentrations of N and AUR for broadleaf (p < 0.0001) and coniferous litter (p < 0.0001). There were also significant positive relationships for AUR as a function of N concentration for the genera Pinus and Quercus but not within species. That for Scots pine (Pinus sylvestris L.) was negative and that for common oak (Quercus robur L.) not significant.

引用

页码：103 / 107

页数：5