首页|浙江省松阳县亚热带森林干扰与恢复遥感监测

浙江省松阳县亚热带森林干扰与恢复遥感监测

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  • 国家科技期刊平台
  • NETL
  • NSTL
  • 万方数据
[目的]浙江省松阳县森林资源丰富，碳汇潜力大，是百山祖国家公园三级联动区，因此监测松阳县森林干扰与恢复，对松阳区域森林管理和百山祖国家公园生态环境保护具有重要意义。[方法]采用谷歌地球引擎(GEE)云平台的LandTrendr算法，并结合 1987-2020年Landsat卫星遥感时间序列数据，监测浙江省松阳县 1987-2020年森林干扰与恢复状况，分析森林干扰与恢复的时空特征。[结果]①LandTrendr算法监测森林干扰与恢复的总体精度达到 82%，森林干扰与恢复的生产精度、用户精度均高于 80%，表明松阳县森林干扰与恢复监测效果较好。②松阳县森林干扰与恢复总面积分别达 148。14与 236。86 km2，分别占林地面积的 12。74%和 20。37%，表明松阳县 1987-2020年森林面积呈净增加趋势。③松阳县大东坝镇、板桥畲族乡、新兴镇、玉岩镇森林变化较为频繁，森林干扰与恢复面积均比其他乡(镇)高，尤其是大东坝镇森林面积变化最大，增加了 20。04 km2。[结论]基于GEE云平台的LandTrendr算法实现了松阳县森林干扰精准监测。近30a松阳县森林面积总体呈增加趋势。图3表3参46
Remote sensing monitoring of subtropical forest disturbance and restoration in Songyang County,Zhejiang Province
[Objective]Songyang County in Zhejiang Province is rich in forest resources and has great potential for carbon sinks,and is a tertiary linkage area of Baishanzu National Park.This study aims to monitor forest disturbance and restoration in Songyang County,so as to provide an important reference for forest management in this region and ecological protection for Baishanzu National Park.[Method]Using the LandTrendr algorithm of the Google Earth Engine(GEE)cloud platform,as well as Landsat satellite remote sensing time series data from 1987 to 2020,the forest disturbance and restoration status in Songyang County,Zhejiang Province from 1987 to 2020 were detected,and the spatial and temporal characteristics of forest disturbance and restoration were analyzed.[Result](1)The overall accuracy of the LandTrendr algorithm in detecting forest disturbance and restoration reached 82%,and the production accuracyand user accuracy of forest disturbance and restoration were both higher than 80%,indicating that the monitoring of forest disturbance and restoration in Songyang County was effective.(2)The total area of forest disturbance and restoration in Songyang County reached 148.14 and 236.86 km2,accounting for 12.74%and 20.37%of the forest land area,indicating a net increase in forest area in Songyang County from 1987 to 2020.(3)Forest changes in Dadongba Township,Banqiao She Township,Xinxing Township and Yuyan Township in Songyang County were relatively frequent,and the area of forest disturbance and restoration was higher than that in other townships.In particular,the forest area of Dadongba Township changed the most,with an increase of 20.04 km2.[Conclusion]The LandTrendr algorithm based on the GEE cloud platform has achieved precise monitoring of forest disturbance in this county.The overall forest area in Songyang County has shown an increasing trend in the past 30 years.[Ch,3 fig.3 tab.46 ref.]

LandTrendrforest disturbance and restorationLandsat time seriesSongyang CountyGoogle Earth Engine(GEE)

邹为民、丁俊、黄子豪、黄蕾、宋美萱、李雪建、杜华强

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松阳县生态林业发展中心,浙江松阳 323400

浙江农林大学环境与资源学院,浙江杭州 311300

LandTrendr 森林干扰与恢复 Landsat时间序列 松阳县 谷歌地球引擎

百山祖国家公园科学研究项目国家自然科学基金

2022JBGS0232171785

2024

10.11833/j.issn.2095-0756.20230324

浙江农林大学学报
浙江农林大学

浙江农林大学学报

CSTPCD北大核心
影响因子：0.929
ISSN：2095-0756
年,卷(期)：2024.41(2)
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