Knowledge Resource Center for Ecological Environment in Arid Area
DOI | 10.1023/A:1006451129811 |
Tree/crop complementarity in an arid zone runoff agroforestry system in northern Kenya | |
Droppelmann, KJ; Ephrath, JE; Berliner, PR | |
通讯作者 | Droppelmann, KJ |
来源期刊 | AGROFORESTRY SYSTEMS
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ISSN | 0167-4366 |
出版年 | 2000 |
卷号 | 50期号:1页码:1-16 |
英文摘要 | We tested the hypothesis that shallow-rooted crops and deep-rooted trees will share the available water in a complementary manner, when grown together, in a field trail in the Turkana district of northern Kenya during 1994 to 1996. Such studies have been few in dryland agroforestry. The effects of two different Acacia saligna (Labill.) H. Wendl. tree planting densities (2500 and 833 trees per ha), tree pruning (no pruning vs. pruning) and annual intercrops (no intercrop vs. intercrop) on total biomass production and their interactions were tested. In 1996 Sorghum bicolor (L.) Moench was used during the first vegetation period and Vigna unguiculata (L.) Walp. during the second. We used naturally generated runoff water for irrigation to supplement low rainfall amounts typical for the area. High biomass production (> 13 t ha(-1) over a two year period) was observed irrespective of intercropping of pruned trees or sole tree stands. Although the pruning treatment reduced total tree biomass yields by a quarter, the introduction of annual intercrops after the pruning of trees outweighed this loss. The yields of the intercrops in the pruned tree treatments were similar to their yields when grown as monocrops. The calculation of land equivalent ratios showed overyielding for intercropped, pruned systems. The high values for LER (1.36 at low and 1.47 at high density of trees) indicate that there is complementarity in resource use between the different species. |
英文关键词 | Acacia saligna intercropping pruning resource capture |
类型 | Article |
语种 | 英语 |
国家 | Israel |
收录类别 | SCI-E |
WOS记录号 | WOS:000089053100001 |
WOS关键词 | SEMIARID KENYA ; WATER ; ROOT ; DESIGN ; YIELD ; LIGHT ; MAIZE ; TREE |
WOS类目 | Agronomy ; Forestry |
WOS研究方向 | Agriculture ; Forestry |
来源机构 | Ben-Gurion University of the Negev |
资源类型 | 期刊论文 |
条目标识符 | http://119.78.100.177/qdio/handle/2XILL650/138441 |
作者单位 | (1)Jacob Blaustein Inst Desert Res, Wyler Lab, Wyler Dept Dryland Agr, IL-84990 Sede Boqer, Israel |
推荐引用方式 GB/T 7714 | Droppelmann, KJ,Ephrath, JE,Berliner, PR. Tree/crop complementarity in an arid zone runoff agroforestry system in northern Kenya[J]. Ben-Gurion University of the Negev,2000,50(1):1-16. |
APA | Droppelmann, KJ,Ephrath, JE,&Berliner, PR.(2000).Tree/crop complementarity in an arid zone runoff agroforestry system in northern Kenya.AGROFORESTRY SYSTEMS,50(1),1-16. |
MLA | Droppelmann, KJ,et al."Tree/crop complementarity in an arid zone runoff agroforestry system in northern Kenya".AGROFORESTRY SYSTEMS 50.1(2000):1-16. |
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