Effect of intercropping distance on crop yield in a paulownia-wheat agroforestry system in the huang-huai-hai plain, china

Wu Gang; Zhou Zhongxuan; Martin Barker; Yang Xiu; Kong Hongmei; Zhao Jingzhu

doi:10.1080/14728028.2003.9752441

Effect of intercropping distance on crop yield in a paulownia-wheat agroforestry system in the huang-huai-hai plain, china

Wu Gang^*, Zhou Zhongxuan, Martin Barker, Yang Xiu, Kong Hongmei, Zhao Jingzhu

^*Corresponding author for this work

Aberdeen Centre For Environmental Sustainability

Research output: Contribution to journal › Article › peer-review

Abstract

A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290—1.9982 A+ 1.1924 D—0.3349 A²+ 0.2910 AD-0.0032 AD². Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T²+ 0.0273 T³ Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements.

Original language	English
Pages (from-to)	7-16
Number of pages	10
Journal	Forests Trees and Livelihoods
Volume	13
Issue number	1
DOIs	https://doi.org/10.1080/14728028.2003.9752441
Publication status	Published - 2003

Bibliographical note

Funding Information:
The study was supported by the National Natural Science Foundation of China (No: 39970591 and 39870132). Special thanks go to Prof. Li Wenhua from the Commission for Integrated Survey of Natural Resources, Chinese Academy of Sciences (CAS) and Prof. Wang Qingli from the Institute of Applied Ecology, CAS for their editorial comments.

Keywords

China
Crown diameter
Intercropping system
Paulownia elongata
Rotation
Tree height
Wheat yield

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10.1080/14728028.2003.9752441

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title = "Effect of intercropping distance on crop yield in a paulownia-wheat agroforestry system in the huang-huai-hai plain, china",

abstract = "A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290—1.9982 A+ 1.1924 D—0.3349 A2+ 0.2910 AD-0.0032 AD2. Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T2+ 0.0273 T3 Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements.",

keywords = "China, Crown diameter, Intercropping system, Paulownia elongata, Rotation, Tree height, Wheat yield",

author = "Wu Gang and Zhou Zhongxuan and Martin Barker and Yang Xiu and Kong Hongmei and Zhao Jingzhu",

note = "Funding Information: The study was supported by the National Natural Science Foundation of China (No: 39970591 and 39870132). Special thanks go to Prof. Li Wenhua from the Commission for Integrated Survey of Natural Resources, Chinese Academy of Sciences (CAS) and Prof. Wang Qingli from the Institute of Applied Ecology, CAS for their editorial comments.",

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doi = "10.1080/14728028.2003.9752441",

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journal = "Forests Trees and Livelihoods",

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AU - Gang, Wu

AU - Zhongxuan, Zhou

AU - Barker, Martin

AU - Xiu, Yang

AU - Hongmei, Kong

AU - Jingzhu, Zhao

N1 - Funding Information: The study was supported by the National Natural Science Foundation of China (No: 39970591 and 39870132). Special thanks go to Prof. Li Wenhua from the Commission for Integrated Survey of Natural Resources, Chinese Academy of Sciences (CAS) and Prof. Wang Qingli from the Institute of Applied Ecology, CAS for their editorial comments.

PY - 2003

Y1 - 2003

N2 - A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290—1.9982 A+ 1.1924 D—0.3349 A2+ 0.2910 AD-0.0032 AD2. Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T2+ 0.0273 T3 Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements.

AB - A case study in a Paulownia (Paulownia elongata S. Y. Hu) -wheat intercropping system was conducted, and the relationship between tree belt distance (D), intercropping age (A) and annual relative wheat yield (Y) was estimated. The regression equation can be expressed as Y= 90.3290—1.9982 A+ 1.1924 D—0.3349 A2+ 0.2910 AD-0.0032 AD2. Tree belt distance and intercropping tree age were the main factors influencing wheat yield. Optimized tree belt distance in each intercropping tree age within the rotation for maximum annual yield was expressed as Dm= 29.1496 + 2.6886 A. The optimized tree belt distance for different Paulownia rotation (T), which could cause the maximum accumulative average wheat yield, was shown as: Dm' = 0.600 + 11.042 T-0.787 T2+ 0.0273 T3 Further work is needed to develop a system to optimize the combined tree and wheat yields to meet the farmers' requirements.

KW - China

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KW - Intercropping system

KW - Paulownia elongata

KW - Rotation

KW - Tree height

KW - Wheat yield

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Effect of intercropping distance on crop yield in a paulownia-wheat agroforestry system in the huang-huai-hai plain, china

Abstract

Bibliographical note

Keywords

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