[1]TIAN Yang,YUN Lei,BI Hua-xing,et al.Research on Light Competition of Fruit-Crop Intercropping System in the Loess Region of West Shanxi Province[J].Research of Soil and Water Conservation,2013,20(04):288-292.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 04
Page number:
288-292
Column:
Public date:
2013-08-28
- Title:
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Research on Light Competition of Fruit-Crop Intercropping System in the Loess Region of West Shanxi Province
- Author(s):
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TIAN Yang1, YUN Lei1, BI Hua-xing1, WANG Li-li2, CHEN Jin-huan3, GAO Lu-bo1, WANG Bao-bao1, YANG Jia-qi1
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1. Shanxi Jixian National Field Research Station of Forest Ecosystem, Key Laboratory of Soil and Water Conservation and Desertification Combating of Ministry of Education, College of Soil and Water Conservation, Beijing Forestry University, Beijing 100083, China;
2. Monitoring Center for Soil and Water Conservation, MWR, Beijing 100055, China;
3. National Engineering Laboratory for Tree Breeding, Beijing Forestry University, Beijing 100083, China
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- Keywords:
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fruit-crop intercropping; light competition; the Loess Region of West Shanxi
- CLC:
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S344.2;S718.51+2.2
- DOI:
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- Abstract:
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Targeting four typical fruit-crop intercropping models, i.e. walnut(Juglans regia)-peanut(Archis hypogaea), walnut(Juglans regia)-soybean(Glycine max), apple(Malus pumila)-peanut(Archis hypogaea)and apple(Malus pumila)-soybean(Glycine max) in the Loess Plateau of western Shanxi Province as test objects, the transmittance(TSY), the photosynthetic active radiation(PAR), net photosynthetic rate(Pn) and photoeffect(EL) of peanut and soybean were studied in order to provide the basic data for constructing the model of light distribution and analyzing the light ecological characteristics of fruit-crop intercropping in this region. The results showed that: (1) light condition in walnut-crop system was better than in apple-crop system, and the sum of relative direct sunlight was only 33% in apple-crop system; (2) the influence degree of fruit trees on crops depended on the distance between fruit trees and crops in fruit-crop intercropping system, and the photosynthetic active radiation and net photosynthetic rate of crops decreased with decreasing distance from fruit tree rows; (3) the values of photoeffect showed that light competition existed between crops and trees in fruit-crop intercropping system, and competition degrees ranked from big to small level were apple-peanut (-26.39%), apple-soybean (-21.89%), walnut-soybean (-18.12%) and walnut-peanut (-16.62%), respectively. This study could provide a scientific basis for land resource rational utilization and agroforestry management for sustainable development in this region.