CAJ | 학술논문

从影响植被介电常数的几个关键因素出发，详细阐述了介电常数随植物含水量、电磁波频率以及温度等参数的动态变化情况；在此基础上，区别介绍了植物材料和植被冠层的相关介电常数模型以及它们各自的适用范围，并对各模型的模拟精度进行了对比和讨论。综合国内外目前对植被介电常数的研究现状，分析了当前该领域研究的不足之处，指出未来的研究可重点面向寒区微波遥感技术，以拓展频率和温度范围为核心，在明确植物体内自由水与束缚水真实含量的基础上，对原有植被介电常数模型进行改进和发展，提高模型对不同植被介电常数的模拟精度，使之能更好的应用于各种不同的自然环境，尤其是寒区冻土、积雪以及植被的微波遥感监测。
종영향식피개전상수적궤개관건인소출발，상세천술료개전상수수식물함수량、전자파빈솔이급온도등삼수적동태변화정황；재차기출상，구별개소료식물재료화식피관층적상관개전상수모형이급타문각자적괄용범위，병대각모형적모의정도진행료대비화토론。종합국내외목전대식피개전상수적연구현상，분석료당전해영역연구적불족지처，지출미래적연구가중점면향한구미파요감기술，이탁전빈솔화온도범위위핵심，재명학식물체내자유수여속박수진실함량적기출상，대원유식피개전상수모형진행개진화발전，제고모형대불동식피개전상수적모의정도，사지능경호적응용우각충불동적자연배경，우기시한구동토、적설이급식피적미파요감감측。
Key influence factors of dielectric constant of plant materials were discussed.It was found that dielectric constant changed dynamically as a function of water content,electromagnetic wave frequency and temperature.Simulation precision and current vegetation dielectric constant research,deficiencies in current research were discussed.Microwave remote sensing will important for future research in cold region,especially with expanded frequency and temperature,clarified content of free and bound waters in vegetation body.This will improve and develop original vegetation dielectric constant model.Simulation model precision for different vegetation should be improved,so that it could be applied in different natural environment,especially for microwave remote sensing of frozen soil、now and vegetation in cold regions.