The study optimized the experimental condition of NR in landfill with the waste sample of bioreactor landfill and on the basis of the soil enzymology.

• 以生物反应器填埋场中的垃圾样品为研究对象，以土壤酶学测定方法为基础，对填埋场中硝酸还原酶的测定条件进行了优化研究。