Remote sensing monitoring of the dynamic changes in geologic hazards in the Huangshui River basin of Qinghai Province
XIN Rongfang1,2,3,4(), LI Zongren1,2,3,4(), ZHANG Kun1,2,3,4, ZHANG Xing1,2,3,4, HUANG Li1,2,3,4, LIU Baoshan1,2,3,4
1. Institute of Geological Survey of Qinghai Province, Xining 810012, China 2. Qinghai Remote Sensing Big Data Engineering Technology Research Center, Xining 810012, China 3. Qinghai Satellite Application Technology Center for Natural Resources, Xining 810012, China 4. The Northern Qinghai-Tibet Plateau Geological Processes and Mineral Resources Laboratory, Xining 810012, China
为了解近年来青海省湟水流域地质灾害频发原因,以GF-1和GF-2卫星遥感数据为主要信息源,在多源、多时相、多期次的遥感影像对比监测的基础上,基于地学知识的支撑,通过研究区已有地质灾害研究资料整理分析甄别、室内遥感影像解译和野外实地调查验证等方法建立了详细、可靠的地质灾害空间分布数据库,通过地理信息系统(geographic information system,GIS)空间分析模型,结合地质灾害参数指标进行统计分析,探讨了地质灾害发生、发展与地质环境、自然因素和人类活动的关系。结果表明: 2017年区内共发现崩塌和滑坡等地质灾害点3 188处,2009年以来发生变化的地质灾害点233处。在地质灾害诸多形成条件中,地质环境条件变化缓慢、人类工程活动和降雨则是最活跃的因素,可见在二者的双重作用下诱发了地质灾害。
This study investigated the causes of the frequent occurrence of geologic hazards in the Huangshui River basin of Qinghai Province in recent years mainly using the GF-1 and GF-2 satellite remote sensing data. Based on the comparative monitoring of multi-source, multi-temporal, and multi-period remote sensing images and the support of geoscience knowledge, this study built a detailed and reliable spatial distribution database of geological hazards through the sorting, analysis, and screening of existent geologic hazard data of the study area, the laboratory interpretation of remote sensing images, and field investigation and verification. Then, it conducted a statistical analysis using the spatial analysis module of GIS and the parameters of geologic hazards. Finally, this study explored the relationships between the occurrence of geologic hazards and geological environment, natural factors, and human activities. The results are as follows. In 2017, 3 188 sites of geologic hazards such as collapse and landslide were discovered in the study area. A total of 233 geologic hazard sites have changed since 2009. Among the formation conditions of geologic hazards, the geological environment conditions have changed slowly, while human engineering activities and rainfall have been the most active factors, which jointly induced geologic hazards.
辛荣芳, 李宗仁, 张焜, 张兴, 黄丽, 刘宝山. 青海省湟水流域地质灾害动态变化遥感监测[J]. 自然资源遥感, 2022, 34(4): 254-261.
XIN Rongfang, LI Zongren, ZHANG Kun, ZHANG Xing, HUANG Li, LIU Baoshan. Remote sensing monitoring of the dynamic changes in geologic hazards in the Huangshui River basin of Qinghai Province. Remote Sensing for Natural Resources, 2022, 34(4): 254-261.
Liu F, Chen H J, Wang S D, et al. Analysis on main geological disasters formation causes and deformation failure mode in Xining[J]. Ground Water, 2015, 37(3):175-177.
doi: 10.1111/j.1745-6584.1999.tb00972.x
Li H J, Dai F C, Xu L, et al. The assessment of fused image of ETM+ and SPOT 5 Pan in the investigation of geological hazards[J]. Remote Sensing for Land and Resources, 2008, 20(1):43-45,54.doi:10.6046/gtzyyg.2008.01.09.
doi: 10.6046/gtzyyg.2008.01.09
Zeng L, Huang Y H. Valley evolution and geologic hazard occurrences in the Loess Plateau of China:A case study:Zichang County in the northern Loess Plateau of Shaanxi Province[J]. The Chinese Journal of Geological Hazard and Control, 2010, 21(3):67-72.
Zhu J, Tang C. An overview of remote sensing applications for landslide research in China[J]. Remote Sensing Technology and Application, 2012, 27(3):458-464.
Fan M, Sun X F, Su F H, et al. Application analysis of remote sensing dynamic monitoring for geological hazards in southwest mountainous areas using domestic high resolution satellite data[J]. Remote Sensing for Land and Resources, 2017, 29(s1):85-89.doi:10.6046/gtzyyg.2017.s1.14.
doi: 10.6046/gtzyyg.2017.s1.14
Liu X J, Liang S N, Wu X J, et al. Interpretation of landslide in Dongchuan District of Yunnan Province using GF-2 satellite data[J]. Spacecraft Recovery and Remote Sensing, 2015, 36(4):93-100.
Zhang K, Li X M, Ma S B, et al. Application of GF-1 image to geo-logical disaster survey in Cosibsumgy village on Sino-India border area[J]. Remote Sensing for Land and Resources, 2016, 28(2):139-148.doi:10.6046/gtzyyg.2016.02.22.
doi: 10.6046/gtzyyg.2016.02.22
Zheng X W, Yang J Z, Chen L, et al. A review on the effects of applying land and resources satellites to geology and mineral resources[J]. Remote Sensing for Land and Resources, 2017, 29(s1):1-7.doi:10.6046/gtzyyg.2017.s1.01.
doi: 10.6046/gtzyyg.2017.s1.01
Liu X Y. “The geological hazard investigation system based on domestic satellite”:Demonstration and application in the loess landslide area[J]. Northwestern Geology, 2017, 50(2):250-258.
Zhang X F, He Z W, Xue D J, et al. Remote sensing investigation and risk assessment of large scale individual landslide triggered by the Wenchuan earthquake[J]. Remote Sensing Information, 2011(3):50-54.
Jia W J, Wang Z H. Activity characteristics and stability analysis based on high-resolution remote sensing image:A case study of Dongmiaojia landslide[J]. Remote Sensing for Land and Resources, 2019, 30(6):174-181.doi:10.6046/gtzyyg.2019.04.23.
doi: 10.6046/gtzyyg.2019.04.23
Tong L Q, Guo Z C. Remote sensing image features of typical landslides[J]. Remote Sensing for Land and Resources, 2013, 25(1):86-92.doi:10.6046/gtzyyg.2013.01.16.
doi: 10.6046/gtzyyg.2013.01.16
Liu Z Z, Song Y X, Ye R Q. An analysis of rainstorm-induced landslide in northeast Chongqing on August 31,2014 based on interpretation of remote sensing images[J]. Remote Sensing for Natural Resources, 2021, 33(4):192-199.doi:10.6046/zrzyyg.2020348.
doi: 10.6046/zrzyyg.2020348
Guo Z C, Nie H F, Yang L, et al. Ancient landslide identification and characteristics using remote sensing along eastern edge of the Heqing basin[J]. Geoscience, 2014, 28(5):1068-1076.
Yang L, Quan K X, Dai Q L, et al. Study on the distribution law of major geological hazards in Xining City[J]. Environment of Qinghai, 2015, 25(3):113-121.
Deng Z L, Hou Y C, Gu F B, et al. Filling characteristics,sporopolen assemblage and palaeoclimate variation of tertiary basins in the northeastern Qinghai-Tibet Plateau[J]. Qinghai Geological, 2000, 9(1):43-53.
Wei L S, Ding H W, Wang T, et al. Loess landslide in Longxi of Gansu Province:Precipitation inducted function and space-time effect[J]. Journal of Glaciology and Geocryology, 2017, 39(3):609-615.
Wu W J, Ye W L, Yao Z X, et al. Characteristics of the Luojiapo loess landslides at Heifangtai,burst on April 29,2015,in Yongjing County,Gansu Province[J]. Journal of Glaciology and Geocryology, 2016, 38(3):662-670.
Li Z M, Zhang J, Tian Q J, et al. A discussion on the development model of the concealed fault along the Huangshui River in Xining[J]. Geology in China, 2009, 36(6):1245-1250.