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应用生态学报 ›› 2016, Vol. 27 ›› Issue (4): 1323-1330.doi: 10.13287/j.1001-9332.201604.033

• 综合评述 • 上一篇    下一篇

间作对旱地CO2和N2O排放影响的研究进展

唐艺玲1,2,3,王建武1,2,3*,杨文亭4   

  1. 1华南农业大学热带亚热带生态研究所, 广州 510642;
    2农业部华南热带农业环境重点实验室, 广州 510642;
    3华南农业大学广东省普通高等学校农业生态与农村环境重点实验室, 广州 510642;
    4江西农业大学农学院, 南昌 330045
  • 收稿日期:2015-08-14 修回日期:2016-01-26 出版日期:2016-04-22 发布日期:2016-04-22
  • 通讯作者: wangjw@scau.edu.cn
  • 作者简介:唐艺玲,女,1990年生,博士研究生. 主要从事甜玉米-大豆间作效益研究. E-mail: tangyiling@stu.scau.edu.cn
  • 基金资助:
    本文由国家重点基础研究发展计划项目(2011CB100400)、国家科技支撑计划项目(2012BAD14B16-04)和广东省科技计划项目(2012A020100003)

Effects of intercropping on soil CO2 and N2O emissions from upland: A review.

TANG Yi-ling1,2,3, WANG Jian-wu1,2,3*, YANG Wen-ting4   

  1. 1Institute of Tropical and Subtropical Ecology, South China Agricultural University, Guangzhou 510642, China;
    2Ministry of Agriculture Key Laboratory of Agro-Environment in the Tropics, Guangzhou 510642, China;
    3Key Laboratory of Agroeco-logy and Rural Environment of Guangdong Regular Higher Education Institutions, South China Agricultural University, Guangzhou 510642, China;
    4College of Agriculture, Jiangxi Agricultural University, Nanchang 330045, China
  • Received:2015-08-14 Revised:2016-01-26 Online:2016-04-22 Published:2016-04-22
  • Supported by:
    This work was supported by the National Key Basic Research and Development Plan (2011CB100400), National Science & Technology Pillar Program of China (2012BAD14B16-04) and Science & Technology Project of Guangdong Province (2012A020100003)

摘要: 农田温室气体排放是近年来科学界的研究热点,采用合适的种植模式是减少农田温室气体排放的有效途径之一.本文综述了作物间作对旱地土壤CO2和N2O排放的影响及机理.合理间作能够提高土壤有机碳(SOC)含量、促进不同作物秸秆向SOC转化、降低SOC矿化速率,从而减少CO2排放.禾本科与豆科作物间作能够在维持作物产量的情况下,减少化学氮肥投入、土壤有效氮残留及还田秸秆产生的无机氮,降低N2O排放.间作作物的互作、田间小气候环境的改善也是影响土壤温室气体排放的重要因素.今后,要增加土壤温室气体监测时长并对影响因子进行综合、全面的分析,尤其是从分子水平探究间作模式下土壤微生物对温室气体产生过程的作用机理,为构建环境友好型农业模式提供科学依据.

Abstract: Greenhouse gases (GHGs) emission from arable field is a hot topic recently, adopting appropriate cropping systems is an effective way to reduce GHGs emission. This paper reviewed the impacts and mechanisms of intercropping on soil CO2 and N2O emissions in upland field. Rational intercropping systems could increase soil organic carbon (SOC), promote the transformation of straw to SOC, slow down mineralization rate of SOC, and hence reduce soil CO2 emissions. The Poaceae intercropping with legume could maintain the stability of yield while reducing synthetic N inputs, formation of inorganic N by residue decomposition and soil mineral N, and further reducing soil N2O emission. In addition, crop interactions in intercropping system and filed microclimate were important factors on GHGs emission as well. It is necessary to extent the period of researches in field GHGs emission in order to fully understand the underlying mechanisms of GHGs emission in farm land, especially the function of soil microorganisms at molecular level. It would provide theoretical knowledge in building environment-friendly agricultural system in the future.