Global S&T Development Trend Analysis Platform of Resources and Environment
DOI | 10.1016/j.foreco.2017.04.010 |
Comparison of soil amendments for reforestation with a native multipurpose tree under semiarid climate: Root and root tuber response of Spondias tuberosa | |
Mertens, Jan1; Germer, Sonja2,3; Germer, Joern1; Sauerborn, Joachim1 | |
2017-07-15 | |
发表期刊 | FOREST ECOLOGY AND MANAGEMENT
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ISSN | 0378-1127 |
EISSN | 1872-7042 |
出版年 | 2017 |
卷号 | 396页码:43475 |
文章类型 | Article |
语种 | 英语 |
国家 | Germany |
英文摘要 | The Caatinga biome, characterized by a species-rich seasonally dry tropical forest, but highly disturbed covers most of Brazil's Northeast. Endemic to this biome is the multipurpose tree Spondias tuberosa Arr., which forms numerous root tubers to resist drought stress. In order to develop improved soil management for reforestation with S. tuberosa the response of its root system to different soil amendments was studied with 52 seedlings, using goat manure, clay substrate, biochar as soil amendments, and mineral fertilizer. The default root architecture of three-year-old S. tuberosa and the relation between soil physical parameters and fine root dry matter (<= 2 mm), root length density, root tuber volume, root tuber fresh weight, and shoot-root ratio were analyzed. Seedlings still formed a tap root with a maximum rooting depth of 63 cm and a maximum horizontal extent of 35 cm, developing 2-4 root tubers per seedling. Fine root dry matter in 3000 cm(3) soil samples differed significantly, ranging from 0.23 g in the control to 0.03 g in the treatment combining manure with biochar and mineral fertilizer. According to the orthogonal contrast, manure was the pivotal soil amendment affecting fine root dry matter negatively. Simultaneously, manure application led to increased soil water content compared to treatments without. The shoot-root ratio increased by 32% compared to the control, when S. tuberosa was grown in wet soils. Root tuber growth was significantly enhanced by manure addition. This effect is attributed to a reduction of soil bulk density as root tuber volume exhibited a negative correlation with soil bulk density. There was no statistical relationship between root tuber volume and seedling survival during the field experiment. Compared with the control, neither clay, biochar nor solely mineral fertilization significantly affected root growth. Soil management focused on improving water availability is suspected of hampering fine root growth of S. tuberosa seedlings, whereas reducing soil bulk density enables better root tuber development and could, therefore, be a promising measure to increase S. tuberosa drought resistance in the long term for more successful reforestation. Disregarding its negative impact on fine root growth, we assume manure is the most promising amendment among the tested treatments, due to its positive effect on root tuber growth. (C) 2017 Elsevier B.V. All rights reserved. |
英文关键词 | Umbuzeiro Drylands Amelioration Root plasticity Hydrotropism |
领域 | 气候变化 |
收录类别 | SCI-E |
WOS记录号 | WOS:000402217100001 |
WOS关键词 | LOWLAND TROPICAL FOREST ; INTERMITTENT DROUGHT ; GROWTH ; DYNAMICS ; BIOCHAR ; PLANTS ; CLAY ; FERTILIZATION ; PHOSPHORUS ; LIMITATION |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
引用统计 | |
文献类型 | 期刊论文 |
条目标识符 | http://119.78.100.173/C666/handle/2XK7JSWQ/22339 |
专题 | 气候变化 |
作者单位 | 1.Univ Hohenheim, Hans Ruthenberg Inst, Inst Agr Sci Trop, D-70593 Stuttgart, Germany; 2.Leibniz Inst Agr Engn & Bioecon, Dept Bioengn, D-14469 Potsdam, Germany; 3.Max Planck Inst Biogeochem, Biospher Theory & Modelling Grp, D-07743 Jena, Germany |
推荐引用方式 GB/T 7714 | Mertens, Jan,Germer, Sonja,Germer, Joern,et al. Comparison of soil amendments for reforestation with a native multipurpose tree under semiarid climate: Root and root tuber response of Spondias tuberosa[J]. FOREST ECOLOGY AND MANAGEMENT,2017,396:43475. |
APA | Mertens, Jan,Germer, Sonja,Germer, Joern,&Sauerborn, Joachim.(2017).Comparison of soil amendments for reforestation with a native multipurpose tree under semiarid climate: Root and root tuber response of Spondias tuberosa.FOREST ECOLOGY AND MANAGEMENT,396,43475. |
MLA | Mertens, Jan,et al."Comparison of soil amendments for reforestation with a native multipurpose tree under semiarid climate: Root and root tuber response of Spondias tuberosa".FOREST ECOLOGY AND MANAGEMENT 396(2017):43475. |
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