Identification and monitoring of landuse activities in contaminated plots based on multi-modal data： a case study oncontaminated plots in <i>Soil Pollution Risk Control and Remediation List of Construction Land in Chongqing</i>

XIA Yusong; ZHOU Qigang; LUO Chengzhong; LI Hui; ZHANG Xiaoyuan; CHEN Fangyan

doi:10.13205/j.hjgc.202504007

Volume 43 Issue 4

Apr. 2025

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Article Navigation > ENVIRONMENTAL ENGINEERING > 2025 > 43(4): 67-77

XIA Y S，ZHOU Q G，LUO C Z，et al.Identification and monitoring of landuse activities in contaminated plots based on multi-modal data： a case study oncontaminated plots in the Soil Pollution Risk Control and Remediation List of Construction Land in Chongqing［J］.Environmental Engineering，2025，43（4）：67-77. doi: 10.13205/j.hjgc.202504007

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Identification and monitoring of landuse activities in contaminated plots based on multi-modal data： a case study oncontaminated plots in Soil Pollution Risk Control and Remediation List of Construction Land in Chongqing

doi: 10.13205/j.hjgc.202504007

1. College of Environment and Resources, Chongqing Technology and Business University, Chongqing 400067, China;
2. School of Public Administration, Chongqing Technology and Business University, Chongqing 400067, China;
3. Chongqing Bureau of Ecological Environment, Chongqing 401147, China;
4. Chongqing Key Laboratory of Spatial Data Mining and Big Data Integration for Ecology and Environment, Chongqing 401320, China;
5. School of Public Administration, Chongqing University of Finance and Economics, Chongqing 401320, China;
6. IFlytek Artificial Intelligence College, Chongqing University of Finance and Economics, Chongqing 402160, China

Received Date: 2024-01-28
Accepted Date: 2024-07-02
Rev Recd Date: 2024-05-13
Publish Date: 2025-04-01

Abstract

Abstract

With the advancement of industrialization and urbanization， the illegal use of contaminated land has become increasingly serious. There is an urgent need to carry out identification and monitoring research on the use of contaminated land to meet the requirements of environmental management and resource protection. In view of the technical challenge of difficult identification and monitoring of land-use activities in contaminated plots， a technical system for identifying and monitoring of such activities was established， based on multi-modal data such as remote sensing images and monitoring data. Taking the contaminated plots in the Chongqing Construction Land Soil Pollution Risk Management and Remediation List as an example， multi-modal data were used to identify and monitor 70 contaminated plots， achieving an overall classification accuracy of 96%. On the whole， planting activities dominated. There were 23 contaminated plots with land-use activities， among which 18 plots had planting activities， accounting for 78.26%. The number of land-use activities， land-use activity points， and land-use activity areas in contaminated plots varied greatly among districts and counties. Spatially， the land-use activities of contaminated land exhibited a clustered distribution. The high-density core area was located in Shapingba District， and the higher-density core areas were located in Dadukou District and Jiulongpo District， showing an obvious "core-to-edge" structure. The research results can help formulate scientific soil risk management and control measures， develop protection and restoration plans， and reduce the potential risks of soil pollution to the environment and human health.
- contaminated land,
- multi-modal data,
- identification and monitoring,
- risk control and remediation list

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