地表细小可燃物含水率野外自动记录监测系统设计与试验  

Design and Experiment of Monitoring System for Surface Fine Fuel Moisture

作　　者：于宏洲 柳慧 张运林 宁吉彬 郭妍 胡同欣 杨光[1] YU Hongzhou;LIU Hui;ZHANG Yunlin;NING Jibin;GUO Yan;HU Tongxin;YANG Guang(Key Laboratory of Forest Ecosystem Sustainable Management of Ministry of Education,Northeast Forestry University,Harbin 150040,China;School of Biological Science,Guizhou Education University,Guiyang 550018,China)

机构地区：[1]森林生态系统可持续经营教育部重点实验室(东北林业大学),哈尔滨150040 [2]贵州师范学院生物科学学院,贵阳550018

出　　处：《森林工程》2022年第5期38-47,共10页Forest Engineering

基　　金：国家重点研发计划战略性国际科技创新合作重点专项(2018YFE0207800);国家自然科学基金项目(31700575)。

摘　　要：为获得野外地表细小可燃物含水率数据开展林火预测预报工作,设计一套可在野外长期、自动获取地表细小可燃物含水率的监测系统。含水率监测系统中太阳能供电装置负责电力输出,利用单片机控制带动称重传感器,进行可燃物质量数据获取,北斗模块将数据传输至计算机终端,或者通过蓝牙传送数据至手机终端,通过终端内置含水率算法即可获取可燃物含水率数据。该含水率监测系统经历极端环境测试、长期监测测试和跨区域验证测试,在长期监测中表现良好,决定系数R^(2)为0.98,跨区域验证中平均绝对误差最大值为10.8%。经与人工测量含水率对照,该含水率监测系统在野外含水率获取方面具有节约人力和降低误差等优势,可有效提高森林火险预报的精确度。To obtain the field fuel moisture content(FMC) for forest fire prediction, a FMC monitoring system is designed to obtain FMC in the field automatically and persistently. The FMC monitoring system is powered by solar-powered device, single chip microcomputer is used to control the load cell to obtain the fuel quality, data is transmitted to computer terminal by Beidou module or mobile phone terminal by Bluetooth, FMC can be obtained by built-in algorithm in terminal. The FMC monitoring system has been tested in extreme environment, long-term monitoring and cross regional verification test, and performed well in long-term monitoring with R^(2) of 0.98 and maximum MAE of 10.8% in cross regional verification. Compared with the manual measurement of FMC, FMC monitoring system has great advantages in field FMC acquisition, which can save manpower and reduce error, and improve the accuracy of forest fire prediction effectively.

关 键 词：林火预测预报 地表细小可燃物 含水率 长期监测 自动记录 

分 类 号：S762[农业科学—森林保护学]