Nitrification and denitrification play a vital role in the conversion of fixed nitrogenous
compounds to nitrogen gas. In anoxic environments, nitrogen loss is attributed to autotropic …

Abstract The North China Plain (NCP) has experienced increasingly severe groundwater
nitrogen (TN) pollution. However, the factors influencing TN distribution are still poorly …

Abstract Nitrate (NO 3-N), as one of the ubiquitous contaminants in groundwater worldwide,
has posed a serious threat to public health and the ecological environment. Despite …

Nitrogen (N) cycling in rivers is particularly active and dynamic due to excess nutrient inputs
worldwide. However, the multidimensional spatial patterns of the activity and community …

In straw return fields, nitrogen-fertilizers are added to mitigate microbial competition for
nitrogen with plants. However, in arsenic (As)-contaminated paddy fields, the specific effects …

Fe oxides play a crucial role in the biogeochemical processes of nitrous oxide (N 2 O)
emissions. However, the role of Fe in affecting the quantitative contribution of ammonia …

Background Spring waters, which are fed mainly by near-surface groundwater, provide a
comprehensive picture of emissions of nitrate and other pollutants caused by the type and …

Denitrifying woodchip bioreactors (WBR), which aim to reduce nitrate (NO3−) pollution from
agricultural drainage water, are less efficient when cold temperatures slow down the …

Woodchip bioreactors are increasingly used to remove nitrate (NO3–) from agricultural
drainage water in order to protect aquatic ecosystems from excess nitrogen. Nitrate removal …

Cost-efficient targeted nitrogen (N) regulation of agriculture with low impact on the
environment is the new N regulation paradigm. It requires detailed knowledge on the …