有机肥对红壤理化性质及Pb和Cd形态的影响

曲靖师范学院学报 ›› 2020, Vol. 39 ›› Issue (6): 27-33.

有机肥对红壤理化性质及Pb和Cd形态的影响

王思涛, 陈金利, 杨海征, 夏荣, 赵帅

曲靖师范学院化学与环境科学学院,云南曲靖 655000

收稿日期:2020-10-18 出版日期:2020-11-26 发布日期:2021-01-13
通讯作者: 杨海征,曲靖师范学院化学与环境科学学院农艺师,主要从事红壤和植物营养研究.
作者简介:王思涛,曲靖师范学院化学与环境科学学院在读本科生,主要从事化学分析研究.
基金资助:
山东省自然科学基金“可视、可控、携载miR-101的纳米复合制剂对非小细胞肺癌靶向治疗研究”(ZR2016HQ10);云南省大学生创新创业训练计划“环境友好型秸秆基复合材料的制备”(201810684027),“可控缓释抗肿瘤药物 DOX pH 敏感型纳米载体的构建”(201810684039),“基于柔性纳米复合材料的可穿戴葡萄糖生物传感器研究”(201910684005),“被遗忘的秘境-怒江原风传统文化拾遗”(202010684051),“碳纳米探针用于心肌梗死早期标志物的即时检测”(202010684003).

Effects of Organic Fertilizer on Physical and Chemical Properties and Pb and Cd Morphology of Red Soil

WANG Sitao, CHEN Jinli, YANG Haizheng, XIA Rong, ZHAO Shuai

School of Chemistry and Environmental Science, Qujing Normal University, Qujing Yunnan 655000, P. R. China

Received:2020-10-18 Published:2020-11-26 Online:2021-01-13

摘要/Abstract

摘要： 采集曲靖市经开区红壤土样,经重金属Pb/Cd污染后,用不同浓度的两种有机肥料分别处理土样,并测定其理化性质及不同形态重金属含量,探讨两种有机肥对重金属污染红壤理化性质及Pb和Cd形态变化的影响.结果表明,施用溶智国艺红壤有机肥(甲)后,该红壤中氮磷钾含量显著上升;施用德沃多生物有机肥(乙)后,该红壤中氮磷钾含量提高效果不明显;同时,甲乙两种有机肥可以有效地减弱污染红壤中交换态 Pb的含量,使红壤中有机结合态Pb和残渣态Pb增加,但导致红壤中交换态 Cd和残渣态Cd含量均增多.研究表明,施用甲种有机肥可以显著提高该红壤中的氮磷钾含量,施用乙种有机肥提高效果不明显,两种有机肥都可作为修复剂减弱Pb的危害,但对于Cd的修复效果不理想.

关键词: 有机肥, 重金属, 形态分析, 理化性质

Abstract: The red loam samples are collected from the Zone of Economic and Technological Development in Qujing. Having been polluted by heavy metal Pb/Cd, the soil samples are treated with two kinds of organic fertilizers with different concentrations, and their physical and chemical properties and heavy metal contents in different forms are determined. The effects of the two kinds of organic fertilizers on the physical and chemical properties and morphology changes of Pb and Cd of the red soil polluted by heavy metals are studied. The results show that the nitrogen, phosphorus and potassium content in the red soil increase significantly after the application of soil organic fertilizer (A). The nitrogen, phosphorus and potassium content in the red soil has not improved obviously after applying Dvo (B). At the same time, the two kinds of organic fertilizers can effectively reduce the proportion of exchangeable Pb in the polluted soil, increase the organic binding state and residue state in the soil, but lead to the increase of both exchangeable Cd and residue Cd content in the soil. The results also show that application of an organic fertilizer could significantly improve the nitrogen, phosphorus and potassium content in the red soil, while application of organic fertilizer B could not significantly improve the effect. Both of the two organic fertilizers can be used as remediation agents to weaken the harm of Pb, but the repair effect of Cd is not ideal.

Key words: organic fertilizer, heavy metals, morphological analysis, physical and chemical properties

中图分类号:

S963.91
X53

王思涛, 陈金利, 杨海征, 夏荣, 赵帅. 有机肥对红壤理化性质及Pb和Cd形态的影响[J]. 曲靖师范学院学报, 2020, 39(6): 27-33.

WANG Sitao, CHEN Jinli, YANG Haizheng, XIA Rong, ZHAO Shuai. Effects of Organic Fertilizer on Physical and Chemical Properties and Pb and Cd Morphology of Red Soil[J]. Journal of Qujing Normal University, 2020, 39(6): 27-33.

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