DOI: 10.1016/j.foreco.2017.05.019
Scopus记录号: 2-s2.0-85019953312
论文题名: The National Key Forestry Ecology Project has changed the zonal pattern of forest litter production in China
作者: You C. ; Wu F. ; Yang W. ; Tan B. ; Yue K. ; Ni X.
刊名: Forest Ecology and Management
ISSN: 0378-1127
出版年: 2017
卷: 399 起始页码: 37
结束页码: 46
语种: 英语
英文关键词: Litter production
; National Key Forestry Ecology Project
; Natural forests
; Planted forest
; Zonality pattern
Scopus关键词: Carbon
; Ecology
; Regression analysis
; Timber
; Leaf litter productions
; National Key Forestry Ecology Project
; Natural forests
; Planted forest
; Regression relationship
; Secondary forests
; Spatial distribution patterns
; Zonality pattern
; Forestry
英文摘要: Litterfall transfers organic matter and nutrients from vegetation to soil and serves a major role in the global carbon (C) cycle. To understand the role of China's Key Ecology Project in the global C cycle, the zonality of national-scale forest litter production was investigated using a meta-analysis. The results showed that the mean annual litterfall was 4.947 ± 0.087 Mg ha−1 yr−1 between 1980 and 2016. The mean annual litterfall in primary forests was similar to that in secondary forests; both were significantly greater than that in planted forests. The total and leaf litter production significantly decreased with increasing latitude and altitude and showed a quadratic relationship with longitude. However, a comparison of the regression relationships of litter production of different forest stand origins with latitude, longitude and altitude revealed relatively larger adjusted R2 values (R2 adj) for secondary forests (R2 adj = 0.488, 0.307, 0.100, all p < 0.01) and primary forests (R2 adj = 0.459, 0.223, 0.142, all p < 0.01), followed by planted forests (R2 adj = 0.037, 0.017, 0.016, all p < 0.01). The coefficients and intercepts of the models of natural forests were significantly larger than those of planted forests (all p < 0.01, with the exception of two values of 0.081 and one value of 0.392). Based on the regression models, significant differences in the relationship between litter production and geographical factors were found between natural forests and all forests. These findings reveal that The National Key Forestry Ecology Project has changed the zonal pattern of forest litter production in China and imply that estimates of mean annual litter production and quantitative analysis of spatial distribution patterns in different forest stand origins are particularly important for understanding the global C cycle and managing forest resources in China. © 2017 Elsevier B.V.
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资源类型: 期刊论文
标识符: http://119.78.100.158/handle/2HF3EXSE/64269
Appears in Collections: 影响、适应和脆弱性
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作者单位: Long-term Research Station of Alpine Forest Ecosystems, Key Laboratory of Ecological Forestry Engineering, Institute of Ecology and Forestry, Sichuan Agricultural University, Chengdu, China
Recommended Citation:
You C.,Wu F.,Yang W.,et al. The National Key Forestry Ecology Project has changed the zonal pattern of forest litter production in China[J]. Forest Ecology and Management,2017-01-01,399