摘要
生物炭是植物或动物源生物质热解的产物,具有多孔结构、高比表面积、丰富的表面官能团等优良特性。经过改性之后,生物炭可提高土壤磷固持能力,减轻磷流失带来的面源污染和水体富营养化,在农业土壤改良方面有重要作用。在综述生物炭物理、化学和生物改性方法的基础上,分析了改性生物炭影响土壤磷固持能力的原因,总结了影响这一过程的因素,并提出了改性生物炭未来的研究和应用方向。
Biochar is the pyrolysis product of plant or animal biomass,which has some excellent characteristics,including porous structure,high specific surface area and rich surface functional groups.After modification,biochar can increase phosphorus retention capacity of soil,and decrease the non-point pollution and water eutrophication caused by phosphorus loss,so it plays an important role in agricultural soil improvement.On the basis of reviewing the physical,chemical,and biological modification approaches of biochar,the reason why modified biochar could affect phosphorus retention capacity of soil was analyzed.The influencing factors which related to phosphorus retention process were summarized,and the future research and application direction of modified biochar were proposed.
作者
袁杰
孟祥志
郑伟杰
YUAN Jie;MENG Xiangzhi;ZHENG Weijie(College of Ecology and Environment,Southwest Forestry University,Kunming Yunnan 650224)
出处
《现代农业科技》
2024年第17期136-139,144,共5页
Modern Agricultural Science and Technology
关键词
生物炭
改性方法
土壤磷
固持能力
影响因素
研究进展
biochar
modificationapproach
soilphosphorus
retentioncapacity
influencingfactor
researchprogress
作者简介
第一作者:袁杰(1998—),女,硕士研究生在读。研究方向:石漠化地区土壤养分的流失及控制。E-mail:1258404626@qq.com。
