Search Our Scientific Publications & Authors

J Environ Manage 2022 Sep 1;318:115638. Epub 2022 Jul 1.

Key Laboratory of Mountain Surface Processes and Ecological Regulation, Institute of Mountain Hazards and Environment, Chinese Academy of Sciences, Chengdu, 610041, China. Electronic address:

The loading of nitrogen (N) and phosphorus (P) from agricultural drainage as the non-point sources is a worldwide environmental issue for aquatic ecosystem. However, how to remove these nutrients effectively from agricultural drainage remains a big challenge with increasing cemented ditches for better management. Here, we designed a novel ecological ditch system which integrated an earth ditch and a cemented ditch with iron-loaded biochar in the Chengdu Plain to reduce the loss of N and P from farmland. Read More

Chemosphere 2022 Aug 7:135816. Epub 2022 Aug 7.

State Key Laboratory of Environmental Criteria and Risk Assessment, National Engineering Laboratory for Lake Pollution Control and Ecological Restoration, Chinese Research Academy of Environmental Sciences, Beijing, 100012, China. Electronic address:

Excessive nitrate (NO) input to reservoirs is a global concern. However, the dynamics and sources of NO under thermal stratification in deep reservoirs were rarely explored. In this study, multi-stable isotopes (δN/δO-NO, δN-particulate nitrogen (PN), δN-dissolved total nitrogen (DTN), and δH/δO-HO) and a Bayesian mixing model were applied to reveal the biogeochemical processes and sources of NO in a deep reservoir with obvious nitrogen pollution. Read More

ISME J 2022 Aug 8. Epub 2022 Aug 8.

School of Biological Sciences, The University of Auckland, Auckland, New Zealand.

The nitrogen cycle plays a major role in aquatic nitrogen transformations, including in the terrestrial subsurface. However, the variety of transformations remains understudied. To determine how nitrogen cycling microorganisms respond to different aquifer chemistries, we sampled groundwater with varying nutrient and oxygen contents. Read More

Chemosphere 2022 Aug 5:135790. Epub 2022 Aug 5.

State Key Laboratory of Pollution Control and Resources Reuse, School of the Environment, Nanjing University, China.

Dissolved organic nitrogen (DON) plays a key role in many biogeochemistry and engineering processes such as forming nitrogenous disinfection byproducts. However, detecting aqueous DON at trace levels is challenging currently because conventional DON conversion methods have very high method detection limits (MDL). In addition, DON is measured indirectly by subtracting dissolved inorganic nitrogen (DIN) from total dissolved nitrogen (TDN), which can propagate analytical errors of each analyte. Read More

J ASABE 2022 Apr;65(2):419-426

Department of Crop Sciences, University of Illinois, Urbana, Illinois, USA.

This article introduces a Special Collection of literature reviews documenting the performance and cost-effectiveness of six agricultural conservation practices (ACPs): conservation crop rotation, cover crop, filter strip, nutrient management, denitrifying bioreactor, and constructed wetland. The overall objectives of the Special Collection are to: (1) review published studies on ACP effectiveness in reducing nutrient and sediment losses from agricultural fields; (2) compare, integrate, and synthesize the results from those studies to obtain a systematic understanding of the mitigation efficacy of each ACP in a consistent format across the selected ACPs; and (3) assemble cost analyses and obtain general insights on performance-based costs of the ACPs. The specific objectives of this introductory article are to summarize key information from each of the six review articles and develop a comparative understanding of the performance and cost-effectiveness of the six ACPs. Read More