Plan for stations to check forest health instantly
Print Edition
SHANGHAI will build a network of 12 ecological monitoring stations to guide scientific management of forests across the city under a project by the local greenery authority and Shanghai Jiao Tong University.
The first station began operating in November in Zhongshan Park in Changning District.
Visitors can see some of the statistics, including temperature, humidity, concentration of negative ions and pollution density, on a digital screen.
Two more stations will be set up by year-end at the Jinhai Road section of the Pudong Outer Ring forest belt and the Dongping National Forest Park in Chongming District.
Another nine will be added by 2020, said Liu Chunjiang, a professor from the university’s School of Agriculture and Biology.
The stations will not only monitor weather and air pollution, but also soil and water conditions and vegetation to track forest growth and the city’s changing ecology.
The data will help local governments make decisions and it will also help forest administrators manage their particular forests.
“Via the stations, we will know which trees are more capable of absorbing pollutants like particulate matter smaller than 2.5 micrometers and which trees can produce more negative oxygen ions,” said Liu. Negative oxygen ions help clean the air.
“We can also work out the most effective planting density and height as well as the reasonable allocation among different trees,” he said.
The project will monitor the effectiveness of forests in dealing with carbon dioxide, producing oxygen, dealing with pollution and cleaning the air and maintaining biodiversity.
Most of Shanghai’s forests are man-made, making it more important to monitor them.Shanghai’s forest cover was about 3 percent in the early 1990s but had increased to more than 15 percent last year.
“The city plans to increase the rate to 25 percent by 2040 and it is also trying to build Chongming into an international ecological island,” Liu said.
“All this needs scientific guidance.”
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