| 引用本文: | 彭先进,夏静,石景涛,等.沼液施用对土壤质量影响综述[J].灌溉排水学报,,():-. |
| PENG Xian-jin,XIA Jing,SHI Jing-tao,et al.沼液施用对土壤质量影响综述[J].灌溉排水学报,,():-. |
|
| |
|
|
| 本文已被：浏览 222次 下载 0次 |
|
|
|
| 沼液施用对土壤质量影响综述 |
|
彭先进1,夏静1,石景涛1,应晓成2,孙文渊3,黄晓敏1,沈新平1
|
|
1.扬州大学 江苏 扬州;2.扬大常熟现代农业发展研究院有限公司 江苏 苏州;3.常熟市水利技术推广站 江苏 苏州
|
|
| 摘要: |
| 【目的】沼液作肥料施用是沼液资源化利用的重要方式,是构建高效沼液生产利用循环模式的关键一环。因此,明确沼液施用对土壤的影响,可为沼液资源化合理安全利用提供科学依据。【方法】为此,本文选取土壤容重、土壤养分、土壤酸碱度、土壤酶活性、土壤微生物和土壤重金属6个代表性指标,综述了沼液施用对土壤质量的影响。【结果】总体而言,在明确沼液最佳施用量的基础上,合理施用沼液有利于合理降低土壤容重,增强土壤养分积累能力,改善土壤酸碱度及提高土壤酶活性。但长期沼液施用可能会导致土壤微生物类型由“细菌型”转向“真菌型”及带来一定的重金属污染风险。【结论】此外,指明了当前的研究难点主要在沼液的异质性及土壤评价方法不统一两个方面,并认为探究沼液最佳施用量、明确土壤沼液最大承载量、沼液影响土壤质量的机理机制研究、建立统一的土壤质量评价方法是未来的研究重点。 |
| 关键词: 沼液;土壤质量指标;土壤养分;承载量 |
| DOI： |
| 分类号:S145.2 |
| 基金项目:国家自然科学青年科学基金项目 |
|
| Effects of biogas slurry application on soil：A Review |
|
PENG Xian-jin1, XIA Jing1, SHI Jing-tao1, YING Xiao-cheng2, SUN Wen-yuan3, HUANG Xiao-min1, SHEN Xin-ping1
|
|
1.Yangzhou University;2.Yangzhou University Changshu Modern Agricultural Development Research Institute Co;3.Changshu Water Conservancy Technology Extension Station
|
| Abstract: |
| 【Objective】Biogas liquid application as fertilizer is an important way of using biogas as a resource, and is a key part of building a highly efficient biogas liquid production and utilization cycle.【Method】Therefore, clarifying the impact of biogas liquid application on the soil can provide a scientific basis for the rational and safe use of biogas liquid resources.【Result】To this end,six representative soil quality indicators, namely soil bulk, soil nutrients, soil pH, soil enzyme activity, soil microorganisms and soil heavy metals, are selected to review the effects of biogas liquid return to the field on soil quality. Overall, on the basis of a clear definition of the optimum amount of biogas liquid to be applied, the reasonable application of biogas liquid is conducive to a reasonable reduction in soil capacity, enhancement of soil nutrient accumulation capacity, improvement of soil pH and enhancement of soil enzyme activity. However, long-term application of biogas liquid may lead to a shift in soil microbial type from "bacterial" to "fungal" and pose a certain risk of heavy metal pollution.【Conclusion】In addition, it was pointed out that the current research difficulties are mainly in the heterogeneity of biogas liquid and the lack of unified soil evaluation methods, and that exploring the optimal amount of biogas liquid application, clarifying the maximum soil biogas liquid carrying capacity, studying the mechanism of biogas liquid affecting soil quality, and establishing a unified soil quality evaluation method are the future research priorities. |
| Key words: Biogas liquid;Soil quality indicators;Soil nutrient;Carrying capacity |
|
|
|
|
