The invention discloses a forest ecological
product value accounting method based on a
remote sensing and
geographic information system, relates to the technical field of ecological resource digital management, and aims to solve the technical problems that a traditional
accounting method is low in efficiency and insufficient in data precision, and
dynamic monitoring and multi-dimensional value comprehensive evaluation are difficult to realize. Comprising the following steps: S1, constructing a space-air-ground acquisition network through a
satellite, an unmanned aerial vehicle and a ground sensor, and carrying out intelligent cleaning, registration and
standardization preprocessing on multi-
modal data; and S2, inverting forest three-dimensional structure parameters by using multi-temporal
remote sensing data, and constructing a digital twin model to dynamically simulate the whole-cycle growth process. According to the invention, a space-air-ground
integrated monitoring network is constructed, high-frequency and high-precision data is collected in combination with a spatio-temporal data fusion
algorithm, individual tree parameters are inversed cooperatively through
LiDAR point cloud and hyperspectrum, errors are eliminated through
spectral angle mapping, the accounting precision is improved to a sub-meter level, and the problem of spatio-temporal heterogeneity is solved.