高级搜索

小麦/花生不同间作方式对花生吸收积累Cd的影响

, 

downloadPDF

上一篇

下一篇

陈秀玲, 张磊. 小麦/花生不同间作方式对花生吸收积累Cd的影响[J]. 环境化学, 2014, 33(9): 1469-1475. doi: 10.7524/j.issn.0254-6108.2014.09.024
引用本文: 陈秀玲, 张磊. 小麦/花生不同间作方式对花生吸收积累Cd的影响[J]. 环境化学, 2014, 33(9): 1469-1475. doi: 10.7524/j.issn.0254-6108.2014.09.024
shu
CHEN Xiuling, ZHANG Lei. Influence on cadmium uptake by peanut of wheat/peanut intercropping modes[J]. Environmental Chemistry, 2014, 33(9): 1469-1475. doi: 10.7524/j.issn.0254-6108.2014.09.024
Citation: CHEN Xiuling, ZHANG Lei. Influence on cadmium uptake by peanut of wheat/peanut intercropping modes[J]. Environmental Chemistry, 2014, 33(9): 1469-1475. doi: 10.7524/j.issn.0254-6108.2014.09.024
shu

小麦/花生不同间作方式对花生吸收积累Cd的影响

  • 1.

    青岛农业大学资源与环境学院, 青岛, 266109

  • 基金项目:

    国家自然科学基金资助项目（41101472）资助.

Influence on cadmium uptake by peanut of wheat/peanut intercropping modes

  • 1.

    Qingdao Agricultural University, College of Resources and Environment, Qingdao, 266109, China

  • Fund Project:

  • 摘要: 为明确间作小麦对花生吸收积累镉（Cd）的影响，采用温室盆栽试验，研究了PVC管阻隔、尼龙网阻隔、混作等3种种植方式下两个花生品种的积累特征.结果表明，3种间隔方式相比，缺铁土壤中尼龙网阻隔处理的白沙1016和花育20植株Cd含量均显著高于其他处理，根系部分Cd含量分别达到9.28 mg·kg-1和9.83 mg·kg-1，地上部分Cd含量分别为1.51 mg·kg-1和2.25 mg·kg-1.研究结果说明，在排除两种作物根系竞争的前提下，小麦根系分泌物可以活化土壤中的Cd，促进花生对Cd的吸收.不论土壤缺铁与否，两品种花生根系部分Cd含量顺序均为：尼龙网阻隔>PVC管阻隔>混作，品种之间差异不显著.在缺铁土壤中花生Cd的积累量顺序为：尼龙网阻隔>PVC管阻隔>混作.在两种作物混作模式下，小麦Cd积累量与花生Cd积累量呈负相关的关系，说明小麦和花生会竞争吸收土壤中的Cd.两个品种花生在缺铁混作处理中Cd的迁移率最大，分别为11.7%和12.2%.研究结果显示，在相对狭小的根系生长空间内，间作小麦会对花生吸收Cd产生较强的竞争作用，然而土壤缺铁导致小麦分泌的麦根酸类植物铁载体能够活化土壤中的Cd.可以推测，在土壤缺铁条件下，大田种植的小麦/花生间、套种体系中的花生籽粒仍然存在着一定的Cd污染风险.
    Abstract: In order to clarify the effects of intercropping wheat on peanut adsorption of Cd, a greenhouse pot experiment using three different intercropping modes, PVC tube barrier, Nylon mesh barrier and mixed cropping was conducted to study the uptake and accumulation of Cd by two peanut genotypes Baisha 1016 and Huayu 20 under varied iron nutrition in different intercropping modes. The results showed that Cd contents of Baisha 1016 and Huayu 20 in nylon mesh barrier treatment in Fe-deficient soil were significantly higher than other treatments, which reached 9.28, 9.83 mg·kg-1 in the roots, and 1.51, 2.25 mg·kg-1 in shoots respectively. It indicated that root exudates of wheat could chelate Cd in soil, accordingly promoting the Cd uptake by peanut, if the root competitive interaction by two crops was excluded. Regardless of soil iron nutrition, the order of Cd content in roots of two peanut varieties was nylon mesh barrier >PVC tube barrier >mixed cropping, and there's no significant difference between two varieties. The order of cadmium accumulation in peanuts under iron deficiency condition was nylon mesh barrier >PVC tube barrier >mixed cropping. Under the mixed cropping treatment, Cd accumulation in wheat and peanut showed a negative correlation, which presented root competitive adsorption of soil Cd between wheat and peanut. In addition, maximum migration rate of Cd in Baisha 1016 and Huayu 20 was found in the mixed cropping in iron deficiency treatment, which was 11.7% and 12.2%, respectively. The present results suggest that wheat competes with peanut for adsorption of Cd in the limited root growth space in the intercropping system. However, Cd in iron deficiency soil is also activated by phytosiderophore excreted by wheat roots. Therefore, there is still certain potential risk of Cd accumulation by peanut intercropping with wheat in iron-deficiency fields.
  • 加载中
  • [1] 刘军, 周坤, 徐卫红, 等. 外源铁对不同番茄品种生理特性、镉积累及化学形态的影响[J]. 环境科学, 2013, 34(10): 4126-4131
    [2] Ren J P, Li D F, Zhang L Y. Advances of the toxicology of cadmium[J]. Acta Zoonutrimenta Sinica, 2003, 15(1): 1-6
    [3] 高芳, 林英杰, 张家蕾, 等. 镉胁迫对花生生理特性、产量和品质的影响[J].作物学报, 2011, 37(12): 2269-2276
    [4] Wang K R. Tolerance of cultivated plants to cadmium and their utilization in polluted farmland soils[J]. Acta Biotechnologica, 2002, 21: 189-198
    [5] 王凯荣, 张磊. 花生镉污染研究进展[J]. 应用生态学报, 2008, 19(12): 2757-2762
    [6] 万书波. 中国花生栽培学[M]. 上海: 上海科学技术出版社, 2003
    [7] Zuo Y M, Zhang F S, Li X L, et al. Studies on the improvement in iron nutrition of peanut by intercropping with maize on a calcareous soil[J]. Plant and Soil, 2000, 220(1/2): 13-25
    [8] Murakami T, Ise K, Hayakawa M, et al. Stabilities of metal complexes of mugineic acids and their specific affinities for iron (Ⅲ)[J]. Chemical Society of Japan, 1989, 2137-2140
    [9] Shao G S, Chen M X, Wang D Y, et al. Using iron fertilizer to control Cd accumulation in rice plants: A new promising technology[J]. Science in China Series C: Life Sciences, 2008, 51: 245-253
    [10] Bao T, Sun L N, Sun T H, et al. Iron-deficiency induces cadmium uptake and accumulation in Solanmumnigrum L[J]. Bulletin of Environmental Contamination and Toxicology, 2009, 82: 338-342
    [11] 李花粉, 张福锁, 毛达如, 等. 小麦根表铁氧化物及植物铁载体对植物吸收镉的影响[J]. 中国环境科学, 1997, 17: 433-436
    [12] Awad F, Römheld V. Mobilization of heavy metals from contaminated calcareous soils by plant born, microbial and synthetic chelates and their uptake by wheat plants[J]. Journal of Plant Nutrition, 2000, 23: 1847-1855
    [13] Nakanishi H, Ogawa I, Ishimaru Y, et al. Iron deficiency enhances cadmium uptake and translocation mediated by the Fe2+ transporters OsIRT1 and OsIRT2 in rice[J]. Soil Science and Plant Nutrition, 2006, 52: 464-469
    [14] Luo C L, Shen Z G, Li X D. Root exudates increase metal accumulation in mixed cultures: Implications for naturally enhanced phytoextraction[J]. Water Air Soil Pollution, 2008, 193: 147-154
    [15] Shenker M, Fan T W M, Crowley D E. Phytosiderophores influence on cadmium mobilization and uptake by wheat and barley plants[J]. Journal of Environmental Quality, 2001, 30: 2091-2098.
    [16] Hill K A, Lion L W, Ahner B A. Reduced Cd accumulation in Zea mays: A protective role for phytosiderophores[J]. Environmental Science and Technology, 2002, 36: 5363-5368
    [17] 陈秀玲, 张磊, 王凯荣. 不同铁营养状况下间作小麦对花生吸收Cd的影响[J].水土保持学报, 2014, 28(1): 257-261
    [18] 房增国, 左元梅, 李隆, 等. 玉米-花生混作体系中不同施氮水平对花生铁营养及固氮的影响[J]. 植物营养与肥料学报, 2004, 10(4): 386-390
    [19] 丁红. 花生铁营养研究进展[J]. 花生学报, 2011, 40(1): 39-43
    [20] 罗厚枚, 王宏. 土壤重金属复合污染对作物的影响[J]. 环境化学, 1994, 13 (5): 427-432
    [21] 宋阿琳, 李萍, 李兆君, 等. 镉胁迫下两种不同小白菜的生长、镉吸收及其亚细胞分布特征[J]. 环境化学, 2011, 30(6): 1075-1080
    [22] 张金彪, 黄维南. 镉对植物的生理生态效应的研究进展[J]. 生态学报, 2000, 20(3): 514-523
    [23] 王焕校. 污染生态学基础[M]. 昆明:云南大学出版社, 1990
    [24] 刘文菊, 张西科, 张福锁. 根分泌物对根际难溶性镉的活化作用及对水稻吸收、运输镉的影响[J]. 生态学报, 2000, 20(3): 448-451
    [25] 郝汉舟, 靳孟贵, 李瑞敏, 等. 耕地土壤铜、镉、锌形态及生物有效性研究[J]. 生态环境学报, 2010, 19(1): 92-96
    [26] Salt D E, Pickering I J, Prince R C, et al. Metal accumulation by aquacultured seedlings of Indian mustard[J]. Environmental Science and Technology, 1997, 31: 1636-1644
    [27] Jarvis S C, Jones L H P, Hopper M J. Cadmium uptake from solution by plants and its transport from roots to shoots[J]. Plant and soil, 1976, 44(1): 179-191
    [28] Kudo K, Kudo H, Kawai S. Cadmium uptake in barley affected by iron concentration of the medium: Role of phytosiderophores[J]. Soil Science and Plant Nutrition, 2007, 53: 259-266
    [29] Suzuki M, Tsukamoto T, Inoue H, et al. Deoxymugineic acid increases Zn translocation in Zn-deficient rice plants[J]. Plant Molecular Biology, 2008, 66: 609-617
  • 加载中
WeChat 点击查看大图
计量
  • 文章访问数:  802
  • HTML全文浏览数:  802
  • PDF下载数:  532
  • 施引文献:  0
出版历程
  • 收稿日期:  2014-02-26

小麦/花生不同间作方式对花生吸收积累Cd的影响

  • 1. 青岛农业大学资源与环境学院, 青岛, 266109
  • 收稿日期:  2014-02-26
基金项目:

国家自然科学基金资助项目（41101472）资助.

摘要: 为明确间作小麦对花生吸收积累镉（Cd）的影响，采用温室盆栽试验，研究了PVC管阻隔、尼龙网阻隔、混作等3种种植方式下两个花生品种的积累特征.结果表明，3种间隔方式相比，缺铁土壤中尼龙网阻隔处理的白沙1016和花育20植株Cd含量均显著高于其他处理，根系部分Cd含量分别达到9.28 mg·kg-1和9.83 mg·kg-1，地上部分Cd含量分别为1.51 mg·kg-1和2.25 mg·kg-1.研究结果说明，在排除两种作物根系竞争的前提下，小麦根系分泌物可以活化土壤中的Cd，促进花生对Cd的吸收.不论土壤缺铁与否，两品种花生根系部分Cd含量顺序均为：尼龙网阻隔>PVC管阻隔>混作，品种之间差异不显著.在缺铁土壤中花生Cd的积累量顺序为：尼龙网阻隔>PVC管阻隔>混作.在两种作物混作模式下，小麦Cd积累量与花生Cd积累量呈负相关的关系，说明小麦和花生会竞争吸收土壤中的Cd.两个品种花生在缺铁混作处理中Cd的迁移率最大，分别为11.7%和12.2%.研究结果显示，在相对狭小的根系生长空间内，间作小麦会对花生吸收Cd产生较强的竞争作用，然而土壤缺铁导致小麦分泌的麦根酸类植物铁载体能够活化土壤中的Cd.可以推测，在土壤缺铁条件下，大田种植的小麦/花生间、套种体系中的花生籽粒仍然存在着一定的Cd污染风险.

English Abstract

    全文HTML

参考文献 (29)

目录

/

返回文章
返回

Copyright © 2019 中国科学院生态环境研究中心