Quantifying the interannual litterfall variations in China's forest ecosystems
文献类型：期刊论文
| 作者 | Jia, Bingrui; Sun, Hongru1; Yu, Wenying4; Zhou, Guangsheng3 |
| 刊名 | JOURNAL OF PLANT ECOLOGY
 |
| 出版日期 | 2020 |
| 卷号 | 13期号:3页码:266-272 |
| 关键词 | annual litterfall production China forest interannual variation coefficient of variation stand age |
| ISSN号 | 1752-9921 |
| DOI | 10.1093/jpe/rtaa010 |
| 文献子类 | Article |
| 英文摘要 | Aims Litterfall is a key parameter in forest biogeochemical cycle and fire risk prediction. However, considerable uncertainty remains regarding the litterfall variations with forest ages. Quantifying the interannual variation of forest litterfall is crucial for reducing uncertainties in large-scale litterfall prediction. Methods Based on the available dataset (N = 318) with continuous multi-year (>= 2 years) measurements of litterfall in Chinese planted and secondary forests, coefficient of variation (CV), variation percent (V-P), and the ratio of next-year litterfall to current-year litterfall were used as the indexes to quantify the interannual variability in litterfall. Important Findings The interannual variations of litterfall showed a declining trend with increasing age from 1 to 90 years. The litterfall variations were the largest in 1-10 years (mean CV = 23.51% and mean V-P = -28.59% to 20.89%), which were mainly from tree growth (mean ratio of next-year to current-year= 1.20). In 11-40 years, the interannual variations of litterfall gradually decreased but still varied widely, mean CV was similar to 18% and mean V-P ranged from -17.69% to 21.19%. In 41-90 years, the interannual variations minimized to 8.98% in mean CV and similar to 8% in mean V-P. As a result, forest litterfall remained relatively low and constant when stand age was larger than 40 years. This result was different from the previous assumptions that forest litterfall reached relatively stable when stand age was larger than 30, 20 or even 15 years. Our findings can improve the knowledge about forest litter ecology and provide the groundwork for carbon budget and biogeochemical qcle models at a large scale. |
| 学科主题 | Plant Sciences ; Ecology ; Forestry |
| 出版地 | OXFORD |
| 电子版国际标准刊号 | 1752-993X |
| WOS关键词 | NET PRIMARY PRODUCTIVITY ; PINE PINUS-SYLVESTRIS ; LEAF-AREA INDEX ; FUEL DYNAMICS ; CARBON ; AGE ; CLIMATE ; BIOMASS ; SUCCESSION ; GRADIENTS |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology ; Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000544169500002 |
| 出版者 | OXFORD UNIV PRESS |
| 资助机构 | National Key Research and Development Program of China [2017YFC0503906] ; China Special Fund for Meteorological Research in the Public Interest [GYHY201406034] |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/21701]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 2.Chinese Acad Meteorol Sci, Beijing 100081, Peoples R China 3.China Meteorol Adm, Inst Atmospher Environm, Shenyang 110166, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Jia, Bingrui,Sun, Hongru,Yu, Wenying,et al. Quantifying the interannual litterfall variations in China's forest ecosystems[J]. JOURNAL OF PLANT ECOLOGY,2020,13(3):266-272. |
| APA | Jia, Bingrui,Sun, Hongru,Yu, Wenying,&Zhou, Guangsheng.(2020).Quantifying the interannual litterfall variations in China's forest ecosystems.JOURNAL OF PLANT ECOLOGY,13(3),266-272. |
| MLA | Jia, Bingrui,et al."Quantifying the interannual litterfall variations in China's forest ecosystems".JOURNAL OF PLANT ECOLOGY 13.3(2020):266-272. |
入库方式： OAI收割
来源：植物研究所
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