自然资源学报 ›› 2015, Vol. 30 ›› Issue (6): 1057-1066.doi: 10.11849/zrzyxb.2015.06.016

• 综述 • 上一篇    

作物间套作群体光能截获和利用机理研究进展

王自奎1,2, 吴普特1,2, 赵西宁1,2, 李正中3, 付小军3   

  1. 1. 西北农林科技大学水利与建筑工程学院, 陕西杨凌712100;
    2. 中国旱区节水农业研究院, 陕西杨凌712100;
    3. 河套灌区解放闸灌域管理局, 内蒙古巴彦淖尔015400
  • 收稿日期:2014-06-04 修回日期:2014-08-22 出版日期:2015-06-20 发布日期:2015-06-20
  • 通讯作者: 赵西宁(1976-),男,博士,副研究员,主要从事农业水土资源高效利用及其效益评价方面的研究.E-mail:xiningz@aliyun.com E-mail:xiningz@aliyun.com
  • 作者简介:王自奎(1987-),男,博士研究生,主要从事作物生长模拟方面的研究.E-mail:wzk09@126.com
  • 基金资助:

    国家科技支撑计划(2011BAD29B09);教育部、国家外国专家局“111”计划(B12007); 西北干旱半干旱农业区大学农业科技服务模式关键技术集成与示范(2013BAD20B03).

A Review of Light Interception and Utilization by Intercropped Canopies

WANG Zi-kui1,2, WU Pu-te1,2, ZHAO Xi-ning1,2, LI Zheng-zhong3, FU Xiao-jun3   

  1. 1. College of Water Resources and Architectural Engineering, Northwest A & F University, Yangling 712100, China;
    2. Institute of Water Saving Agriculture in Arid Regions of China, Yangling 712100, China;
    3. Bureau of Hetao irrigation district, Bayannaoer 015400
  • Received:2014-06-04 Revised:2014-08-22 Online:2015-06-20 Published:2015-06-20

摘要:

合理的间套作种植模式具有高产高效及环境友好的特点,可能成为未来可持续农业的重要组成部分.光能的高效利用是间套作群体产量占优的主要原因之一.论文综述了计算间套作群体光能截获及分配的半经验模型及理论模型,分析了间套作群体产量优势形成的生理生态基础.间作套种可形成有利于作物吸收光能的冠层结构,或者可促进作物的光合速率,或者可改变作物的收获指数.对于共生期较长的间套作群体而言,优势作物对光能的高效截获和劣势作物对光能的高效利用是群体产量优势形成的主要原因,而对于共生期较短的间套作群体而言,两种作物光能吸收量的增加是该群体高产的主要驱动力.

关键词: 光合有效辐射, 光能截获量, 光能利用效率, 产量优势, 收获指数, 间套作

Abstract:

Intercropping has the characteristics of being high efficient and environmental friendly. It might be an important part of the sustainable agriculture in the future. The present study reviewed the semi-empirical and theoretical models for estimating light interception of intercropped canopies, and then analyzed the mechanisms responsible for high yield of intercrops from the perspective of light utilization. Intercropping could increase light interception, or promote the efficiency of converting captured light, or change the harvest index of crop. For the intercrops with relative long co-growth period, yield advantage is mainly attained from the efficient light capture by the dominant crop and the efficient light use by the subordinate crop, while for the intercropping systems with shorter co-growth period, the increase of light interception by both crops is the primary drive force for the intercropping benefit.

Key words: PAR, yield advantage, light interception, light use efficiency, harvest index, intercrop

中图分类号: 

  • S314