Thinning effect on understory community and photosynthetic characteristics in a subtropical Pinus massoniana plantation
文献类型：期刊论文
| 作者 | Cheng, CP; Wang, YD; Fu, XL; Xu, MJ; Dai, XQ; Wang, HM |
| 刊名 | CANADIAN JOURNAL OF FOREST RESEARCH
 |
| 出版日期 | 2017 |
| 卷号 | 47期号:8页码:1104-1115 |
| 关键词 | thinning forest management understory diversity photosynthesis Pinus massoniana plantation subtropical China |
| ISSN号 | 0045-5067 |
| 英文摘要 | Thinning forest stands changes biotic and abiotic conditions, subsequently altering understory communities including their photosynthetic characteristics. We investigated the effects of thinning (25% basal area decrease) in a subtropical Pinus massoniana Lamb. plantation at two post-thinning times: 0.5 years (PT0.5) and 2.5 years (PT2.5). Thinning (PT0.5 and PT2.5) significantly increased understory density (+104.9% and +142.4%, respectively), aboveground biomass (+191.1% and +239.2%, respectively), the Shannon-Wiener index, and the Pielou index and decreased the Simpson index (p < 0.05). Species richness significantly increased at PT0.5 and decreased at PT2.5 (p < 0.05). Photosynthetic characteristics of new and old leaves of three dominant species (Woodwardia japonica (Linn. f.) Sm., Dryopteris championii (Benth.) C. Chr., and Dicranopteris dichotoma (Thunb.) Bernh.) showed different variations at 0.5 and 2.5 years after thinning, depending on their various adaptive strategies. Generally, thinning improved leaf carbon fixation capacity of these dominant plants (except W. japonica old leaves). Leaf photosynthetic characteristics of these species exhibited some common changes with respect to leaf morphological attributes and chlorophyll content. Thinning increased new-leaf length (or width) and reduced old-leaf chlorophyll b concentration at PT0.5 but reduced new- leaf length, specific leaf area, and all-leaf chlorophyll concentration at PT2.5. In conclusion, thinning is a useful tool for increasing understory abundance and carbon fixation capacity of some fern species. |
| 学科主题 | Forestry |
| 语种 | 英语 |
| WOS记录号 | WOS:000406997200011 |
| 出版者 | CANADIAN SCIENCE PUBLISHING, NRC RESEARCH PRESS |
| 源URL | [http://ir.igsnrr.ac.cn/handle/311030/44025]  |
| 专题 | 生态系统网络观测与模拟院重点实验室_生态网络实验室 |
| 推荐引用方式 GB/T 7714 | Cheng, CP,Wang, YD,Fu, XL,et al. Thinning effect on understory community and photosynthetic characteristics in a subtropical Pinus massoniana plantation[J]. CANADIAN JOURNAL OF FOREST RESEARCH,2017,47(8):1104-1115. |
| APA | Cheng, CP,Wang, YD,Fu, XL,Xu, MJ,Dai, XQ,&Wang, HM.(2017).Thinning effect on understory community and photosynthetic characteristics in a subtropical Pinus massoniana plantation.CANADIAN JOURNAL OF FOREST RESEARCH,47(8),1104-1115. |
| MLA | Cheng, CP,et al."Thinning effect on understory community and photosynthetic characteristics in a subtropical Pinus massoniana plantation".CANADIAN JOURNAL OF FOREST RESEARCH 47.8(2017):1104-1115. |
入库方式： OAI收割
来源：地理科学与资源研究所
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