Forest disturbance monitoring in Lishui City, China based on Landsat time series images and the Land Trendr algorithm

CHEN Yuanyuan; YAN Shuoting; YAN Jin; ZHENG Siqi; WANG Hao; ZHU Jie

doi:10.6046/zrzyyg.2023285

2025 Vol. 37, No. 1

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Article navigation > Remote Sensing for Natural Resources > 2025 > 37(1): 179-187

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CHEN Yuanyuan, YAN Shuoting, YAN Jin, ZHENG Siqi, WANG Hao, ZHU Jie. 2025. Forest disturbance monitoring in Lishui City, China based on Landsat time series images and the Land Trendr algorithm. Remote Sensing for Natural Resources, 37(1): 179-187. doi: 10.6046/zrzyyg.2023285

Citation:

CHEN Yuanyuan, YAN Shuoting, YAN Jin, ZHENG Siqi, WANG Hao, ZHU Jie. 2025. Forest disturbance monitoring in Lishui City, China based on Landsat time series images and the Land Trendr algorithm. Remote Sensing for Natural Resources, 37(1): 179-187. doi: 10.6046/zrzyyg.2023285

Forest disturbance monitoring in Lishui City, China based on Landsat time series images and the Land Trendr algorithm

1. College of Civil Engineering, Nanjing Forestry University, Nanjing 210037, China;
2. Anhui Province Key Laboratory of Physical Geographic Environment, Chuzhou 239004, China

Received Date: 12 September 2023

Revised Date: 01 March 2024

Abstract

Abstract

The rapid and accurate acquisition of forest disturbances using advanced technological methods is of great significance for maintaining forest ecological security. In this study, all Landsat images of Lishui City, China from June to August from 1992 to 2022 were acquired. Based on the LandTrendr algorithm on the Google Earth Engine (GEE) platform, this study analyzed the characteristics of forest disturbances in the city. A spatiotemporal analysis of forest disturbances across various counties and cities within Lishui was conducted, and the influence patterns of natural factors including slope, elevation, and precipitation on forest disturbances were also explored. The results indicate that vegetation disturbances in Lishui City generally decreased over the 30 years. Spatially, the most severe forest disturbances occurred in Longquan City and Suichang County located in northwestern Lishui City. Temporally, 2008 witnessed the most severe forest disturbances. In addition, areas with gentle slopes and high elevations, as well as years with reduced precipitation, were more sensitive to forest disturbance over the 30 years. This study will provide a scientific basis and reference for the preservation and management of forest resources in Lishui City.
- time series /
- LandTrendr /
- Google Earth Engine (GEE) /
- forest disturbance

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References

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