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中国农学通报

中国农学通报 ›› 2015, Vol. 31 ›› Issue (20): 166-170.doi: 10.11924/j.issn.1000-6850.casb15040173

所属专题： 土壤重金属污染； 小麦

• 资源 环境 生态 土壤 气象 • 上一篇    下一篇

微污染水灌溉对土壤-作物系统Cd动态的影响及小麦敏感期分析

胡艳玲1,2,3,齐学斌1,2,3,李 平1,2,3,李中阳1,2,3,胡 超1,2,3,赵志娟1,3,樊 涛1,3   

  1. (1水利部/中国农业科学院农田灌溉研究所,河南新乡 453002；2中国农业科学院河南新乡农业水土环境野外科学观测试验站,河南新乡 453002；3中国农业科学院农业水资源高效安全利用重点开放实验室,河南新乡453002）
  • 收稿日期:2015-04-22 修回日期:2015-05-06 接受日期:2015-05-25 出版日期:2015-07-28 发布日期:2015-07-28
  • 通讯作者: 齐学斌
  • 基金资助:
    公益性行业（农业）科研专项经费项目“黄淮海高产农田作物需水及高效用水技术研究与示范”(201203077)；“863”计划项目“农业生境检测监测与修复技术研究”(2012AA101404)。

Analysis of Cd Dynamic of Soil-crop System and Sensitive Period of Winter Wheat with Micro-polluted Water Irrigation

Hu Yanling1,2,3, Qi Xuebin1,2,3, Li Ping1,2,3, Li Zhongyang1,2,3, Hu Chao1,2,3, Zhao Zhijuan1,3, Fan Tao1,3   

  1. (1Farmland Irrigation Research Institute, Chinese Academy of Agricultural Sciences/MWR, Xinxiang Henan 453002; 2Agricultural Soil and Water Environment Field Scientific Experimental Station of Xinxiang, He’Nan Province, Chinese Academy of Agricultural Sciences, Xinxiang Henan 453002; 3Key Laboratory of High-efficient and Safe Utilization of Agricultural Water Resources, Xinxiang Henan 453002)
  • Received:2015-04-22 Revised:2015-05-06 Accepted:2015-05-25 Online:2015-07-28 Published:2015-07-28

PDF (PC)

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摘要： 为了探讨重金属在土壤-作物系统中的动态平衡以及作物对重金属吸收的敏感期，通过田间小区试验进行不同浓度Cd微污染水灌溉，分析Cd在土壤-作物系统中的含量及其随生育期变化的情况。结果表明：与清水相比，含Cd微污染水灌溉显著性增加冬小麦表层0~10 cm土壤Cd含量，冬小麦地上部分带走量远小于灌溉输入量，影响土壤Cd平衡；灌浆期是冬小麦吸收Cd的敏感期，不适宜微污染水灌溉；含Cd微污染水灌溉降低冬小麦籽粒的饱满度，显著降低冬小麦的产量。总之，含Cd微污染水灌溉尤其在灌浆期显著性影响土壤-作物系统Cd平衡。

关键词: 甘肃省生态公益林, 甘肃省生态公益林, 农户管护积极性, 博弈分析, 生态补偿

Abstract: In order to explore the dynamic balance of heavy metals in the soil-crop system and the sensitive period of heavy metal uptake, field plot test was conducted with micro-polluted water of different concentrations of Cd. The results showed that, compared with the treatment of clear water, the Cd content of 0-10 cm soil layer significantly increased under micro-polluted water irrigation treatment. The take away Cd content of the aboveground part was far less than the irrigation input Cd content, which affected the balance of the soil Cd. The filling stage was the sensitive period of winter wheat and not suitable for micro-polluted water irrigation. The winter wheat grain plumpness was reduced with micro-polluted water irrigation, and the yield of the winter wheat was significantly reduced. In conclusion, Cd micro-polluted water irrigation could influence Cd balance in soil-crop system, especially in the filling period.