Since 2021, the China Zhi Gong Party has been implementing a Yangtze River eco-environmental protection project in partnership with Anhui Province. The initiative leverages intellectual resources, assembling a think tank of experts to launch a five-year 'science and technology empowerment' campaign across the Jianghuai region, which encompasses the lower reaches of the Huaihe and Yangtze Rivers.
Among the experts is Zhang Wei, a member of the China Zhi Gong Party and a professor at Peking University. She leads a team that uses environmental DNA (eDNA) technology to monitor biodiversity in Chaohu Lake and the Wanjiang River's main and branch tributaries. eDNA technology can precisely identify minute traces of life in water, detecting even invasive species that are difficult to spot with the naked eye. 'We capture or collect these minute traces of environmental information and then amplify them,' Zhang explains.
This non-invasive method allows scientists to assess biodiversity simply by analyzing genetic information from water samples, without the need to fish or disturb aquatic life. The approach has opened new pathways for evaluating the effectiveness of the Yangtze River fishing ban and conducting biodiversity monitoring. Over the past five years, Zhang's team has collaborated closely with Anhui University and local environmental protection authorities to establish multiple sampling sites in Chaohu Lake and the Wanjiang River.
The implications of this technology are significant. Traditional methods for monitoring aquatic ecosystems often require capturing organisms, which can be disruptive and time-consuming. eDNA technology offers a more efficient and less intrusive alternative, enabling broader and more frequent assessments. This is particularly important for the Yangtze River basin, one of the world's most biodiverse freshwater ecosystems, which has faced environmental pressures from industrial development and overfishing.
By detecting invasive species early, eDNA monitoring can help prevent ecological damage. Additionally, the data collected supports evidence-based policy decisions, such as refining fishing regulations and targeting conservation efforts. Zhang hopes that through targeted oversight, eDNA monitoring technology will be promoted and applied on a more comprehensive scale. 'We hope to set an example so that everyone can do their part to support environmental protection and monitoring in this way,' she says.
The China Zhi Gong Party's partnership with Anhui Province underscores a growing reliance on scientific innovation to address environmental challenges. As China continues to balance economic growth with ecological sustainability, tools like eDNA provide a means to track progress and identify areas needing intervention. The success of this project could serve as a model for other regions facing similar environmental monitoring challenges.
