Vegetation and water body monitoring based on remote sensing technology

In recent years, with the increasing severity of environmental problems, people have paid more and more attention to environmental protection. Vegetation plays an important role in the Earth system and is an important renewable resource on the Earth's surface. Vegetation index remote sensing monitoring technology is a method that can obtain vegetation status through satellite remote sensing images. By acquiring optical remote sensing data of vegetation parameters, quantitative analysis of the structure and function of ecosystems can be carried out.

Project Introduction

Aerospace City Central Lake Park is bordered by East Chang'an Avenue to the north, Hangchuang Road to the south, Shenzhou Third Road to the west, and Shenzhou Fourth Road to the east, covering a total area of ​​165,000 square meters, of which the lake area alone is 30,000 square meters. The entire park is divided into a lakeside walking area, a leisure and entertainment area, a children's playground, a lakeside sightseeing area, an entrance plaza area, and a natural forest slope area. It integrates cultural display, waterfront recreation, children's play, and natural landscape, making it a comprehensive park within the aerospace base.

Vegetation Index

Vegetation indices are radiometric values ​​that reflect the relative abundance and activity of green living vegetation. They are often used to characterize the physiological status of vegetation, green biomass, and vegetation productivity in a study area. Image analysis shows that the vegetation coverage of Aerospace Zhonghu Park is over 80%, indicating good vegetation growth and high vegetation abundance.

Chlorophyll Index

Chlorophyll a, as the main pigment in phytoplankton, is commonly used to characterize the size of algal biomass in aquatic ecosystems and the eutrophication status of lakes. Image inversion revealed significant differences in water quality among different lakes. Overall, the chlorophyll a concentration in the lake water was low, while the concentration was higher in some areas along the lake shore, which may be related to the influence of surrounding vegetation.

The artificial lake employs a combination of gabion revetments and gentle slope revetments, providing excellent safety protection, a scenic waterfront environment, and good ecological functions. It offers some buffering and resistance against heavy rain and storms, while also purifying and filtering pollutants from the water. For safety reasons, the aquatic plants planted near the shore are spaced at varying distances and densities from the water's edge, generally at a depth of 0.4–0.6 meters. Images show that the spread of the planted vegetation is strictly controlled, with isolation zones in place.