Antibiotics are a new pollutant with biological activity, and are one of the pollutants in pharmaceuticals and personal-care products (PPCPs). In recent decades, the presence and fate of antibiotics in water environment have received special attention because of their persistence, resistance to biodegradation and the potential risks to ecological and human health. This review briefly addresses the current state of knowledge concerning the input sources, and the distribution characteristics of antibiotics in China, and summarised the degradation and removal methods applied to the antibiotics

Our study focused on quantifying the extent of ecological water-demand security of the Linghekou Reserve, investigating changes in the landscape pattern of the Linghekou Reserve during 2005–2019, evaluating the ecological water demand of the Linghekou Reserve from 2005 to 2019, and analysing the water-demand security of biological habitat as an important factor affecting the ecological water-demand security of the Linghekou wetland.

A well-designed layout of leisure-fishery (LF) industry can reduce resource-allocation costs, give play to regional advantages, and maximise utility. LF units in Zhejiang Province were selected as the research objects. The results showed significant differences in the distribution density among different cities. Traffic, market, and scenic-spot location significantly affected the distribution of LF units in Zhejiang Province.

The pressure–state–response (PSR) model was used to construct an evaluation index system for the health of the Futian mangrove wetland ecosystem, which adopted a comprehensive assessment model of wetland-ecosystem health, and predicted the impact trend of an alien species, sae sang, on the Futian mangrove wetland ecosystem.

In this study, the comprehensive standard evaluation system of ‘Happy River’ was constructed by using the analytic hierarchy process (AHP) for the first time, and the empirical study of several typical rivers (located in Shaoxing City, China) was conducted. On this basis, the countermeasures and suggestions for promoting the construction of ‘Happy River’ are put forward, which provides a reference example for the sustainable management of rivers.

In this study, significant biomagnification was shown for Hg, Mn, Pb and Sn in the fish food chain. Noticeable dilution was demonstrated for Cu and Cr. Unapparent trend of both biomagnification and biodilution was found for As, Se and Zn. The Se:Hg molar ratios exhibited noticeable species and spatial variation for the wild fish, whereas the antifouling reagent and surface applications might be the main sources of Sn and Pb contamination in fish.

Controlling the inputs of nutrients, one of the main sources of lake pollution from inflow rivers, is an important way to protect lakes. We obtained a whole picture of spatiotemporal variation of water quality in Gehu lake and inflow rivers, analysed the relationship between them using BATHTUB model and discussed collaborative control by setting up different scenarios. Our findings help provide effective control of water quality in inflow rivers and a guide for the environmental governance of Gehu Lake.

The impact of dam construction on the regional climate has attracted great attention of researchers. This study evaluated the impact of a large-scale dam construction on regional precipitation. The regional precipitation data before and after the construction of the Xiaolangdi Dam and the Three Gorges Dam were analysed using geostatistical tools. It can be concluded that the establishment of the dam increased the precipitation value in this area. It is speculated that the larger dams will have greater precipitation.

In view of early strength performance required by silt solidification projects for space reduction, it was investigated whether the early strength material, sulfoaluminate cement, used during sludge solidification treatment in sewage treatment plants, exerts early strength effects on desilting. The occurrence mechanism of early strength is discussed from the perspective of moisture transformation. With sediments dredged from Dalian Bay as the object, the strength, deformation and moisture transformation amount of solidified sludge were practically measured and analysed with reference to Portland cement.