中文摘要：

生物质在无氧或低氧条件下高温热解炭化而成的产物称为生物炭。生物炭在土壤改良以及修复受污染土壤方面都展现出应用潜力，近年来对生物炭的研究成为前沿热点。通过综合国内外研究资料，对生物炭的特性研究，生物炭对重金属污染土壤的修复及生物炭对土壤的改良三个方面进行综述，以期为生物炭技术的推广和应用提供参考。

英文摘要：

Biochar is the production of biomass pyrolysis in high temperature with the partial or total absence of oxygen. Biochar gains wide attention in recent years, the potential use of the biochar in remediation of the heavy metal polluted soil and the improvement of agricultural environment. In this article, the properties of the biochar are introduced, the remediation of the heavy metal polluted soil as well as the application of agricultural environment are reviewed. The problems and possible hotspots are analyzed so as to provide perspectives on applications and developments of biochar technology.