摘要
生物质炭作为环境友好型材料,具有高度稳定性和较强的吸附性能,施入土壤后能改善土壤结构,提高土壤肥力,增强生物固氮能力,还可减少温室气体的排放,农田土壤添加生物质炭会间接或直接对土壤氮素物质转化产生影响。本文从生物质炭的特性出发,概述了生物质炭的固氮机理、生物质炭的输入对农田N_2O排放以及氮素淋溶的影响,对研究中存在的问题进行分析,并提出展望。
As a kind of environmentally friendly material,biochar has a high degree of stability and strong adsorption property. Applying into the soil,the biochar can improve the soil structure,improve soil fertility,enhance biological nitrogen fixation capacity,but also reduce gas emissions of greenhouse. Added biochar into farmland soil will indirectly or directly affect soil nitrogen conversion. Started from the characteristics of biochar,the nitrogen fixation mechanism of biochar and the effect of biochar input on N2O emission and nitrogen leaching in farmland were summarized in this paper. The problems were analyzed,and the prospect were put forward in the study.
出处
《现代农业科技》
2017年第19期168-169,174,共3页
Modern Agricultural Science and Technology
