Coarse root spatial distribution determined using a ground-penetrating radar technique in a subtropical evergreen broad-leaved forest, China
文献类型：期刊论文
| 作者 | Yan Hui3,4; Dong XinLiang3; Feng Gang3; Zhang ShouRen; Mucciardi, Anthony2 |
| 刊名 | SCIENCE CHINA-LIFE SCIENCES
 |
| 出版日期 | 2013 |
| 卷号 | 56期号:11页码:1038-1046 |
| 关键词 | abiotic factors biotic factors coarse root density ground-penetrating radar (GPR) spatial distribution |
| ISSN号 | 1674-7305 |
| DOI | 10.1007/s11427-013-4560-7 |
| 文献子类 | Article |
| 英文摘要 | Coarse roots play a critical role in forest ecosystems and both abiotic and biotic factors affect their spatial distribution. To some extent, coarse root density may reflect the quantity of root biomass and biotic competition in forests. However, using traditional methods (e.g., excavation) to study coarse roots is challenging, because those methods are time-consuming and laborious. Furthermore, these destructive methods cannot be repeated in the same forests. Therefore, the discovery of non-destructive methods for root studies will be very significant. In this study, we used a ground-penetrating radar technique to detect the coarse root density of three habitats (ridge, slope and valley) and the dominant tree species (Castanopsis eyrei and Schima superba) in a subtropical forest. We found that (i) the mean of coarse root density for these three habitats was 88.04 roots m(-2), with roots being mainly distributed at depths of 0-40 cm. Coarse root densities were lower in deeper soils and in areas far from the trunk. (ii) Coarse root densities differed significantly among the three habitats studied here with slope habitat having the lowest coarse root density. Compared with S. superba, C. eyrei had more roots distributed in deeper soils. Furthermore, coarse roots with a diameter > 3 cm occurred more frequently in the valleys, compared with root densities in ridge and slope habitats, and most coarse roots occurred at soil depths of 20-40 cm. (iii) The coarse root density correlated negatively with tree species richness at soil depths of 40-60 cm. The abundances of the dominant species, such as C. eyrei, Cyclobalanopsis glauca, Pinus massoniana, had significant impacts on coarse root density. (iv) The soil depth of 0-40 cm was the basic distribution layer for coarse roots since the majority of coarse roots were found in this soil layer with an average root density of 84.18 roots m(-2), which had no significant linear relationships with topography, tree species richness, rarefied tree species richness and tree density. Significant relationships between coarse root density and these factors were found at the soil depth of 40-60 cm, which was the potential distribution layer for coarse root distribution. |
| 学科主题 | Biology |
| 出版地 | BEIJING |
| 电子版国际标准刊号 | 1869-1889 |
| WOS关键词 | BIOMASS ; COMPETITION ; SYSTEMS ; OAK ; PLANTATIONS ; HYPOTHESIS ; DENSITY ; FLORIDA ; BEECH |
| WOS研究方向 | Science Citation Index Expanded (SCI-EXPANDED) |
| 语种 | 英语 |
| WOS记录号 | WOS:000326813300009 |
| 出版者 | SCIENCE PRESS |
| 资助机构 | National Natural Science Foundation of China(National Natural Science Foundation of China (NSFC)) |
| 源URL | [http://ir.ibcas.ac.cn/handle/2S10CLM1/28187]  |
| 专题 | 植被与环境变化国家重点实验室 |
| 作者单位 | 1.TreeRadar Inc, Silver Spring, MD 20910 USA 2.Inner Mongolia Forestry Monitoring & Planning Aca, Hohhot 010020, Peoples R China 3.Chinese Acad Sci, Inst Bot, State Key Lab Vegetat & Environm Change, Beijing 100093, Peoples R China 4.Univ Chinese Acad Sci, Beijing 100049, Peoples R China |
| 推荐引用方式 GB/T 7714 | Yan Hui,Dong XinLiang,Feng Gang,et al. Coarse root spatial distribution determined using a ground-penetrating radar technique in a subtropical evergreen broad-leaved forest, China[J]. SCIENCE CHINA-LIFE SCIENCES,2013,56(11):1038-1046. |
| APA | Yan Hui,Dong XinLiang,Feng Gang,Zhang ShouRen,&Mucciardi, Anthony.(2013).Coarse root spatial distribution determined using a ground-penetrating radar technique in a subtropical evergreen broad-leaved forest, China.SCIENCE CHINA-LIFE SCIENCES,56(11),1038-1046. |
| MLA | Yan Hui,et al."Coarse root spatial distribution determined using a ground-penetrating radar technique in a subtropical evergreen broad-leaved forest, China".SCIENCE CHINA-LIFE SCIENCES 56.11(2013):1038-1046. |
入库方式： OAI收割
来源：植物研究所
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