Spatial patterns of global-scale forest root-shoot ratio and their controlling factors
文献类型：期刊论文
| 作者 | Ye, Junzhi1; Yue, Chao1,2; Hu, Yunfeng3 ; Ma, Hui1
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| 刊名 | SCIENCE OF THE TOTAL ENVIRONMENT
 |
| 出版日期 | 2021-12-15 |
| 卷号 | 800页码:12 |
| 关键词 | Meta-analysis Forest R S ratio Spatial pattern Controlling factor |
| ISSN号 | 0048-9697 |
| DOI | 10.1016/j.scitotenv.2021.149251 |
| 通讯作者 | Yue, Chao(chaoyue@ms.iswc.ac.cn) ; Hu, Yunfeng(huyf@lreis.ac.cn) |
| 英文摘要 | The forest root-shoot ratio (R/S), i.e., the ratio of belowground to aboveground biomass at the stand level, is widely used in global and regional forest carbon stock estimation and in modeling of the forest carbon cycle. Despite recent advances in understanding forest R/S variations at the individual-tree level, spatial patterns of standlevel forest R/S ratio across the globe and their driving factors remain relatively unknown. Here, we compiled and analyzed an extensive dataset from 873 forest sites worldwide, analyzed and quantified the effects of major environmental and forest growth-related variables on the stand-level R/S ratio. Based on this analysis, we further mapped the spatial pattern of the global forest R/S ratio. Our results show that, globally, variations on the stand-level forest R/S ratio are largely affected by canopy height, latitude, climatic water deficit, forest type and regeneration method, which collectively explain 37% of the variations in R/S ratio. In addition, our results suggest significant intercontinental and national variations in forest R/S ratio. At the continental scale, forest R/S ratio is highest in Oceania and lowest in South America. At the national scale, Australia has the highest forest R/S ratio while Russia has the lowest values. The forest R/S ratio is generally lower in moist tropical regions, but increases when moving to the extra-tropics when seasonality in precipitation increases. The R/S ratio in temperate and boreal regions shows prominent spatial features regulated by forest species composition and regeneration method. We conclude that future changes in environmental, biotic and anthropogenic factors, such as increased climatic water deficit and forest management, might influence the forest R/S ratio, with implications for the global and regional land carbon cycle. |
| WOS关键词 | BIOMASS ALLOCATION ; CARBON ALLOCATION ; TREE ; TEMPERATURE ; CHRONOSEQUENCE ; ACCLIMATION ; ECOSYSTEMS ; RESPONSES ; STORAGE ; LEAVES |
| 资助项目 | Strategic Priority Research Program of the Chinese Academy of Sciences[XDB40020305] ; National Natural Science Foundation of China[41971132] |
| WOS研究方向 | Environmental Sciences & Ecology |
| 语种 | 英语 |
| WOS记录号 | WOS:000702510000009 |
| 出版者 | ELSEVIER |
| 资助机构 | Strategic Priority Research Program of the Chinese Academy of Sciences ; National Natural Science Foundation of China |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/165968]  |
| 专题 | 中国科学院地理科学与资源研究所 |
| 通讯作者 | Yue, Chao; Hu, Yunfeng |
| 作者单位 | 1.Northwest A&F Univ, Coll Nat Resources & Environm, Yangling 712100, Shaanxi, Peoples R China 2.Northwest A&F Univ, State Key Lab Soil Eros & Dryland Farming Loess P, Yangling 712100, Shaanxi, Peoples R China 3.Chinese Acad Sci, Inst Geog Sci & Nat Resources Res, State Key Lab Resources & Environm Informat Syst, Beijing 100101, Peoples R China |
| 推荐引用方式 GB/T 7714 | Ye, Junzhi,Yue, Chao,Hu, Yunfeng,et al. Spatial patterns of global-scale forest root-shoot ratio and their controlling factors[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2021,800:12. |
| APA | Ye, Junzhi,Yue, Chao,Hu, Yunfeng,&Ma, Hui.(2021).Spatial patterns of global-scale forest root-shoot ratio and their controlling factors.SCIENCE OF THE TOTAL ENVIRONMENT,800,12. |
| MLA | Ye, Junzhi,et al."Spatial patterns of global-scale forest root-shoot ratio and their controlling factors".SCIENCE OF THE TOTAL ENVIRONMENT 800(2021):12. |
入库方式： OAI收割
来源：地理科学与资源研究所
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