Metagenomic analysis unveiled the response of microbial community and antimicrobial resistome in natural water body to duck farm sewage.

Sewages from duck farms are often recognized as a major source of antimicrobial resistance and pathogenic bacteria discharged to natural water bodies, but few studies depicted the dynamic changes in resistome and microbial communities in the rivers under immense exposure of sewage discharge. In this study, we investigated the ecological and environmental risks of duck sewages to the rivers that geographically near to the duck farms with short-distance (<1 km) using 16S rRNA amplicon and metagenomic sequencing. The results showed that a total of 20 ARG types were identified with abundances ranged from 0.

Prevalence and molecular characteristics of mcr-1-positive Escherichia coli isolated from duck farms and the surrounding environments in coastal China.

The emergence of colistin-resistance is considered a threat to public health and colistin-resistant bacteria have recently been reported in animal, environmental and human sources. Whereas, the epidemic and dissemination of colistin-resistant bacteria in duck farms have not been surveyed, especially the surrounding environmental contamination from duck farms. We investigated the prevalence and molecular characteristics of mcr-1-positive E.

How has the efficiency of China's green development evolved? An improved non-radial directional distance function measurement.

As a key choice for human sustainable development, green development is also one of China's five major vision points. To explore the level of green development in China since it was first written into national documents in 2011, this paper applies an improved non-radial distance function based on Data Envelopment Analysis method to analyze the progress against the development targets set in related national documents. The results show that: (1) China's green development efficiency has kept increasing in 2011-2017.

Investigating industrial water-use efficiency in mainland China: An improved SBM-DEA model.

Improving water-use efficiency (WUE) is a crucial way of achieving green industrial production and sustainable development. Applying an improved Super-slacks-based measure model with undesirable outputs, this paper investigates industrial WUE in mainland China. The results show that: (1) Industrial WUE in China is improving with the efficiency value increasing from 0.