Satellite remote sensing monitoring shows: Tianjin Vegetation hold a piece of green

Tsukumo News News:Recently, high-resolution Earth observation system data and application center in Tianjin (hereinafter referred to as the center of Tianjin score) by scores of multi-source satellite remote sensing monitoring data analysis shows: Since 2011, the city’s overall vegetation coverage has improved steadily, "Thirteen five "period than the" five-second "period increased by 0.58%. In 2020 the city’s total vegetation carbon sequestration (carbon dioxide equivalent) was 5.0014 million tons, compared with 2017 (not established green ecological barrier area) increased by 198,900 tons. Wherein the total amount of carbon and the vegetation region Jizhou green screen area, respectively 861,700 tons and 250,100 tons, respectively, compared to 2017 and an increase of 48,300 tons 25,500 tons. By 2020, the amount of carbon per unit area of ??the city was 417.96 grams / square meter, compared with 2017, an increase of 16.63 grams / square meter; green screen area per unit area of ??carbon sequestration was 344.53 grams / square meter, compared with 2017 increased 35.19 g / sq. meters, the city’s average increase of 2.1 times, the amount of carbon per unit area the biggest increase.

The city’s overall vegetation coverage has improved steadily

According to multi-source satellite remote sensing monitoring data show that high score: Since 2011, the city’s average annual vegetation coverage rate fluctuated, but overall has increased steadily. Among them, "Thirteen Five" period (2016-2020) the city’s vegetation coverage mean of 65.62%, compared with the "Twelfth Five-Year" period increased by 0.58%. And in 2020, Tianjin enhance significantly faster vegetation coverage, the city’s average vegetation coverage rate reached 66.22%, improved 0.6% during the past five years than the average for the past decade the growth of vegetation covering the most obvious effect of the year. Which cover more than 70% of the regional area accounted for more than half of the area of ??the City, and concentrated in the north-central and southwestern regions.

Green screen area per unit area of ??carbon sequestration biggest increase

In 2020 the city’s total vegetation carbon sequestration capacity of 5,001,400 tons, compared with 2017 increased 19.89 million tons. Among them, Chief Jizhou carbon sequestration 861,700 tons, representing an increase of 48,400 tons in 2017, accounting for 17.23 percent of the city total amount of carbon in the vegetation; green screen Chief carbon sequestration 250,100 tons, compared with 2017, an increase of 2.55 tons, accounting for 5% of the total amount of carbon in the total vegetation.

From the point of view the amount of carbon per unit area, in 2020 the city average of 417.96 grams / square meter, an increase of 16.63 g / m2 than 2017. A high amount of carbon per unit area value in the area mainly Jizhou region, Baodi, Wuqing, ninghe district, region, and Jinghai TBNA southwestern forest areas and agriculture. Wherein, in 2020 the average area Jizhou amount of carbon per unit area was 541.87 grams / square meter, an increase of 30.39 g / m2 than 2017; Green Area of ??the amount of carbon per unit area average of 344.53 grams / square meter, more 2017 increased 35.19 grams / square meter, an increase of 2.1 times the city’s average amount of green screen area per unit area increase carbon sequestration most prominent.

Meteorological departments of ecological civilization construction in Tianjin

After the construction of the future green screen area is complete, and Qili Sea wetland connected to the reservoir Beidagang form throughout the north and south of the "ecological zone", in addition to playing an important role in carbon sequestration, it will also have a regional climates have some improvement. Numerical simulations show that: After construction is completed green screen area, will have in the region and the surrounding areas ecological effect, especially in the southeast summer prevailing winds background, the central city downwind of providing "eco cold source" and a green screen area as " wetlands source ", can cool the central urban southeastern 0.2 ~ 0.4 ℃, humidified 2%; at the same time, Jinbin Twins" super heat island "and" very large dry island "green screen area will be" cut off the waist "," ecological barrier "highlighted the role.

In order to consolidate bring green screen zone climate advantage, the municipal meteorological departments to carry out the green screen arid zone, high temperature, low temperature, strong winds, hail, heavy rain and other extreme weather events in real-time monitoring and refinement of the risk assessment, the timely release and the impact of severe weather forecasting and early warning information, scientific planning and assisted green screen area and respond to weather disasters; integrated ecological construction green screen area meteorological observatory, to carry out sustained and stable eco-meteorological monitoring, climate assessment to enhance the ability to optimize the effect of the ecological environment of green screen area. Currently, under the support of government investment Jinnan District, the area in a green screen Bali Weather Service has built a comprehensive set of ecological Taiwan meteorological stations, observation project in addition to the conventional wet wind meteorological elements such as temperature and pressure, also increased for the ecological quality assessment and Eco vegetation, soil moisture, carbon dioxide and water vapor flux and other elements "carbon double" assessment.

It is understood that, in the future, the Municipal Meteorological Bureau will actively increase the ecological restoration of artificial rainfall (snow) capacity building, strengthening rational development and utilization of Cloud Water Resources, strengthening continuous tracking and monitoring of precipitation cloud system, improve weather modification conditions for recognition, scientific response to drought risk. Tianjin will rely on high center regularly carry out meticulous assessment of the effectiveness of the city’s ecological protection and restoration, in order to optimize the ecological space layout, enhance ecosystem services. Will give the city the meteorological department, the two work together to build a typical urban ecosystem meteorological monitoring and evaluation system services, to carry out monitoring and evaluation of forest, wetlands, coastlines ecosystem ecological quality meteorology; construction of greenhouse gas monitoring stations, the main background concentrations of greenhouse gases long-term monitoring of standardization. We will give full play to the China Meteorological Administration – Nankai Atmospheric Environment and Health Research joint laboratory role to enhance the ecological civilization construction support capabilities to strengthen scientific and technological support for the construction of livable modern Tianjin and make greater contributions. (Tsukumo News correspondent correspondent Wu Hong Zhang Yan)