Scenic spots are important ecological conservation targets in China, and remote sensing monitoring is a crucial technique used for various regulatory purposes. In this study, utilizing two phases of Chinese high-resolution satellite imagery from 2021 to 2022, remote sensing technique is employed along with interactive interpretation methods to establish interpretation indicators for natural and anthropogenic factors within scenic spots in Zhejiang Province. Based on the change detection between the two temporal images, this study identifies that 17 out of the 22 national-level scenic spots experienced changes in natural resources. A total of 501 patches related to natural resource alterations are detected, including 463 patches indicating degradation and other 38 ones indicating restoration. This demonstrates that remote sensing can significantly enhance the efficiency of regulatory for management authorities and effectively address the limitations of traditional monitoring approaches. It can provide objective and authentic data for dynamic monitoring and investigation of natural resources and ecological geological environments within scenic spots in the study area, offering fundamental information and technical support for real-time monitoring of development and construction activities conducted by relevant sectors.
This article extracted topics on eco-geological environment factors using “GF1-BCD satellite data”. By comparing the extraction results of different data sources and the results of existing regional surveys, we evaluate the accuracy of GF1- BCD satellite data in determining the location, boundary and type of feature elements. Evaluate the ability to identify the distribution range of various factors of natural resources remote sensing survey[1,2]. Thus, the application capability of this satellite data in natural resources remote sensing survey and monitoring is evaluated. The results show that the satellite data of Gaofen-1B, C and D can satisfy the information extraction work of 1:50,000 engineering geology, land cover and river change elements, and provide data support for the regional ecological and geological environment survey.
By combining the offsite interpretation and field verification and the remote sensing data in a natural reserve in Tibet in 2012, 2014, 2016, 2018 and 2020, this article investigates the situation of mine compaction damage and its restoration. Also, using the result of 2012 data as a benchmark, it is focused on analysing the dynamic changes over the following four survey years in terms of compaction damage and restoration, under mining and abandonment mines, and the types of minerals involved. Then, the chart of incremental changing trends is generated. This study reflects the real-time information storage function of satellite remote sensing monitoring technology and its efficiency and advantages in wide-area ecological and geological environment surveys. The results of this study have provided data and technical support for the future management of the mine geological environment in natural reserves in western provinces in China.
Taking Meitanba mining area in Hunan Province as an example, by using the achieved high accuracy and high resolution point-cloud data and digital image data by airborne LiDAR system, this research built the 3D landform of the vegetation-covered areas, got the features of micro landform in the areas, and offered quantity factors for research of geo phenomenon which related to regional landforms and geoscience process. Based on the high accuracy data from airborne LiDAR system and combined with the basic data of geology,the forming mechanism of the karst collapse of Meitanba mining area in Hunan Province and the relationship of surface collapse and mining activities are analyzed. The research mentioned that the reason of the karst collapse in Meitanba mining area is with the basic conditions of forming karst landform and plus the increasing water flow and exchange rate of the underground water, and then the water level decrease, finally different degrees of the regional karst collapse have happened.
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