Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1016/S0378-1127(00)00633-2 |
Allometry and rainfall interception of Cordyla pinnata in a semi-arid agroforestry parkland, Senegal | |
Samba, SAN; Camire, C; Margolis, HA | |
通讯作者 | Margolis, HA |
来源期刊 | FOREST ECOLOGY AND MANAGEMENT |
ISSN | 0378-1127 |
出版年 | 2001 |
卷号 | 154期号:1-2页码:277-288 |
英文摘要 | Allometric relations and rainfall interception of widely spaced Cordyla pinnata [(A. Rich.) Milne-Redh] trees were studied in a traditional agroforestry parkland in the semi-arid peanut basin of Senegal. Leaf biomass and leaf area were most strongly correlated to diameter at crown base (R-2 = 0.99 and 0.97, respectively), but were also strongly correlated with diameter at breast height, tree height, crown diameter, crown length, and crown volume. Average foliar biomass was 82 kg per tree and 33.7 g m(-2) for the parkland, while leaf area indices averaged 3.7 for individual trees and 0.16 for the parkland. The influence of crown size, pruning intensity and distance from the tree on rainfall interception was examined during 40 rainfall events totaling 714 mm, averaging 17.8 mm arid ranging from 2 to 40 mm. Interception was 22% at a distance of one-half the crown radius from the tree trunk (1/2 R) and 9% at one crown radius (1 R). Such horizontal variations in interception may be important to crop growth and yield. A power model of the relationship between gross precipitation and rainfall interception was developed and yielded R-2 values of 0.85 and 0.53 at distances 1/2 R and 1 R, respectively. Interception at 1/2 R decreased linearly 2 2 with pruning intensity, was greater for the larger crown lengths, and was not affected by crown diameter. Canopy storage capacity estimated by three different methods ranged from 4.8 to 5.0 mm. Relative light intensity under the tree crowns was correlated with throughfall (R 2 = 0.62) and was increased by pruning for the largest crown volume class. (C) 2001 Elsevier Science B.V. All rights reserved. |
英文关键词 | agroforestry parklands allometry Cordyla pinnata precipitation peanut basin rainfall interception Senegal canopy storage capacity West Africa |
类型 | Article |
语种 | 英语 |
国家 | Canada ; Senegal |
收录类别 | SCI-E |
WOS记录号 | WOS:000172049500022 |
WOS关键词 | FOREST ; RADIATION ; BALANCE ; SPRUCE ; FRANCO ; MODEL ; AREA |
WOS类目 | Forestry |
WOS研究方向 | Forestry |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/140730 |
作者单位 | (1)Univ Laval, Fac Foresterie & Geomat, Ctr Rech Biol Forestiere, St Foy, PQ G1K 7P4, Canada;(2)Inst Senegalais Rech Agricoles, Dakar, Senegal |
推荐引用方式 GB/T 7714 | Samba, SAN,Camire, C,Margolis, HA. Allometry and rainfall interception of Cordyla pinnata in a semi-arid agroforestry parkland, Senegal[J],2001,154(1-2):277-288. |
APA | Samba, SAN,Camire, C,&Margolis, HA.(2001).Allometry and rainfall interception of Cordyla pinnata in a semi-arid agroforestry parkland, Senegal.FOREST ECOLOGY AND MANAGEMENT,154(1-2),277-288. |
MLA | Samba, SAN,et al."Allometry and rainfall interception of Cordyla pinnata in a semi-arid agroforestry parkland, Senegal".FOREST ECOLOGY AND MANAGEMENT 154.1-2(2001):277-288. |
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