有机肥连续施用对土壤剖面有机碳分布的影响及其与重金属的关系

生态学杂志

有机肥连续施用对土壤剖面有机碳分布的影响及其与重金属的关系

王怡雯¹,许浩¹,茹淑华²,苏德纯^1*

（¹中国农业大学资源与环境学院，农田土壤污染防控与修复北京市重点实验室，北京 100193；²河北省农林科学院农业资源环境研究所，石家庄 050051）

出版日期:2019-05-10 发布日期:2019-05-10

Effects of continuous application of organic fertilizer on the distribution of organic carbon in soil profile and its relationship with heavy metals.

WANG Yi-wen¹, XU Hao¹, RU Shu-hua², SU De-chun^1*

(¹Beijing Key Laboratory of Farmland Pollution Preventioncontrol and Remediation, College of Resources and Environmental Sciences, China Agricultural University, Beijing 100193, China; ²Institute of Agro-resource and Environment, Hebei Academy of Agriculture and Forestry Sciences, Shijiazhuang 050051, China).

Online:2019-05-10 Published:2019-05-10

摘要/Abstract

摘要： 应用大田定位试验方法，研究了连续4年施用不同类型有机肥后，土壤剖面中有机碳和易氧化有机碳的分布特征，并与相应的重金属含量进行了相关性分析。结果表明：连续4年施用不同类型有机肥后，土壤剖面中有机碳、易氧化有机碳主要累积在0～15 cm土层，其含量随土层深度的增加而降低。施用高量鸡粪时，有机碳可迁移到15～30 cm土层，易氧化有机碳可迁移到60～90 cm土层；施用猪粪和污泥时，有机碳均未发生明显的迁移现象，但高施用量处理下易氧化有机碳可迁移至60～90 cm土层。施用猪粪和污泥后，土壤剖面各层中易氧化有机碳占总有机碳的比例显著增加，且均高于施用鸡粪。施用不同有机肥后土壤剖面中有机碳、易氧化有机碳分布和Cu、Zn、Cd具有显著正相关。

Abstract: A field positioning experiment was conducted to examine the distribution of organic carbon and easily oxidized organic carbon, and their correlation with the concentrations of heavy metals in soil profile after four years continuous application of three different kinds of organic fertilizers. The results showed that after applying organic fertilizers, organic carbon and easily oxidized carbon mainly accumulated in the 0-15 cm soil layer, and their concentrations decreased with increasing soil depth. When high amount of chicken manure was applied, organic carbon could migrate to the 15-30 cm soil layer, and easily oxidized organic carbon could migrate to the 60-90 cm soil layer. Organic carbon didn’t significantly migrate when pig manure and sludge were applied, while easily oxidized organic carbon migrated to the 60-90 cm soil layer under high amount application of pig manure and sludge. The proportion of oxidized organic carbon to total organic carbon was much higher in the treatments of pig and sludge manure application as compared to chicken manure. There was a significant positive correlation between the distribution of organic carbon and easily oxidized organic carbon and Cu, Zn and Cd in the soil profile after application of different organic fertilizers.

王怡雯,许浩,茹淑华,苏德纯. 有机肥连续施用对土壤剖面有机碳分布的影响及其与重金属的关系[J]. 生态学杂志.

WANG Yi-wen, XU Hao, RU Shu-hua, SU De-chun. Effects of continuous application of organic fertilizer on the distribution of organic carbon in soil profile and its relationship with heavy metals.[J]. cje.