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| DOI | 10.1111/1365-2745.14249 |
| Developing crown width model for mixed forests using soil, climate and stand factors | |
| 发表日期 | 2024 |
| ISSN | 0022-0477 |
| EISSN | 1365-2745 |
| 起始页码 | 112 |
| 结束页码 | 2 |
| 卷号 | 112期号:2 |
| 英文摘要 | The tree crown is a useful measure of tree vigour and is highly relevant to a tree's environmental adaptability. Crown allometry depends on environmental and stand conditions. Several studies have focussed on the effects of climate change and competitive intensity on the crown, but the regulatory role of soil resources and diversity on crown allometry and carbon allocation has been neglected.Data from 20,994 trees in 232 mixed forests collected between 2011 and 2019 were located near four major mountain ranges in northeast China. The proposed crown width model includes the stand developmental stage, soil, climate, competition intensity, species mixture, species diversity, structural diversity and their interactions.We observed that the cross-species allometric scaling exponent does not conform to the universal scaling law. Our results showed that crown width increased with increasing soil bulk density, quadratic mean diameter and coefficient of diameter variation but decreased with increasing de Martonne aridity index, basal area, Simpson index and species mixture. The interaction between quadratic mean diameter and soil bulk density had a significant negative effect on crown width. The influence of a particular factor within the interaction term on crown width was modulated by the gradients of other factors. Furthermore, soil bulk density contributed more to crown width modelling than the aridity index, and structural diversity had a greater effect on crown width than species diversity.Synthesis. Our results provide new insights into the environmental variability of crown allometry in mixed forests under global change, which is critical for improving regional and global estimates of forest biomass and carbon stocks. These results provide new insights into the environmental variability of crown allometry in mixed forests under global change, which is critical for improving regional and global estimates of forest biomass and carbon stocks.image |
| 英文关键词 | climate change; competitive intensity; crown allometry; soil resource availability; species diversity; species mixtures; structural diversity |
| 语种 | 英语 |
| WOS研究方向 | Plant Sciences ; Environmental Sciences & Ecology |
| WOS类目 | Plant Sciences ; Ecology |
| WOS记录号 | WOS:001137889900001 |
| 来源期刊 | JOURNAL OF ECOLOGY
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| 文献类型 | 期刊论文 |
| 条目标识符 | http://gcip.llas.ac.cn/handle/2XKMVOVA/290846 |
| 作者单位 | Northeast Forestry University - China; Northeast Forestry University - China; Tribhuvan University; Institute of Forestry (IOF) - Nepal |
| 推荐引用方式 GB/T 7714 | . Developing crown width model for mixed forests using soil, climate and stand factors[J],2024,112(2). |
| APA | (2024).Developing crown width model for mixed forests using soil, climate and stand factors.JOURNAL OF ECOLOGY,112(2). |
| MLA | "Developing crown width model for mixed forests using soil, climate and stand factors".JOURNAL OF ECOLOGY 112.2(2024). |
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