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| 土壤水分与干旱遥感研究的进展与趋势 | |
| 引用本文： | 刘志明,张柏,晏明,李铁强.土壤水分与干旱遥感研究的进展与趋势[J].地球科学进展,2003,18(4):576-583. |
| 作者姓名： | 刘志明 张柏 晏明 李铁强 |
| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,吉林,长春,130012;吉林省气象科学研究所,吉林,长春,130062 2. 中国科学院东北地理与农业生态研究所,吉林,长春,130012 3. 吉林省气象科学研究所,吉林,长春,130062 4. 吉林省农业区划研究所,吉林,长春,130062 |
| 基金项目： | 吉林省环境科技项目"吉林省生态环境监测中遥感信息处理方法研究"(编号:2001009)，吉林省重点科技项目"吉林省农业遥感信息处理及数据库支持系统"(编号:1999 919 11)，中国科学院长春净月潭遥感实验站基金项目"用气象卫星资料估计第一性生产力方法研究"(编号:200008)资助. |
| 摘 要： | 对土壤水分和干旱遥感监测的国内外发展情况进行了回顾，依据土壤水分和干旱遥感监测的原理，围绕着可见光与近红外、热红外、微波光谱波段的使用，分别以土壤和植被为观测对象，对国内外土壤水分与干旱遥感现状与发展趋势进行讨论。重点对微波遥感土壤湿度的算法发展和研究趋势进行了较详细的论述。在总结国内外土壤水分遥感监测研究实验中所用过的方法与原理的基础上，对目前遥感监测土壤水分研究领域的重点、难点和未来的发展方向进行了评述。土壤水分遥感监测是一个复杂的间接过程，波段及变量选择、传感器的性能等因素对土壤水分监测是至关重要的，土壤的各种理化性状、地形的分异作用以及气候变化和人为的土壤管理措施对土壤水分均有不同的影响，地表特征与土壤水分也存在着一定的相关性。改进的热惯量法和作物缺水指数法是当前土壤水分遥感监测中较为成熟的方法。GIS技术的广泛应用、土壤水分遥感监测模型的优化。微波遥感的应用将是该领域的重点研究方向。 |
| 关 键 词： | 土壤水分 干旱 遥感 光谱 模型 |
| 文章编号： | 1001-8166(2003)04-0576-08 |
| 修稿时间： | 2002年3月15日 |
SOME RESEARCH ADVANCES AND TRENDS ON SOIL MOISTURE AND DROUGHT MONITORING BY REMOTE SENSING |
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| Liu Zhiming,Zhang Bai,Yan Ming,Li Tieqiang.SOME RESEARCH ADVANCES AND TRENDS ON SOIL MOISTURE AND DROUGHT MONITORING BY REMOTE SENSING[J].Advance in Earth Sciences,2003,18(4):576-583. | |
| Authors: | Liu Zhiming Zhang Bai Yan Ming Li Tieqiang |
| Institution: | 1.Northeast Institute of Geography and Agricultural Ecology, Chinese Academy of Sciences,Changchun 130012,China;2.Meteorological Science Institute of Jilin Province, Changchun 130062,China;3.Jilin Institute of Agricultural Divisions of Jilin Province,Changchun 130062,China |
| Abstract: | After reviewing the study on RS (remote sensing) monitoring soil moisture and drought, the article taking soil and vegetation as the study objects, discusses the present status and development trend in band use of visible-near infrared, thermal infrared, microwave band in domestic and abroad, according to the principle of RS (remote sensing) monitoring soil moisture and drought, and makes an emphasis on the detailed discuss on the development and trend of arithmetic of microwave monitoring soil moisture. Based on the summary of experimental methods and principle of remote sensing monitoring soil moisture in domestic and abroad, the authors discusses the emphasis and difficulties at present and future development direction in the field of remote sensing monitoring soil moisture. The remote sensing monitoring on soil moisture is a complicated indirect process: many factors, such as the choice of bands, variable and characteristics of the sensor and so on is critical to the monitoring for soil moisture; the properties and of soil, the differential of the landform, climate change and human being’s soil management all affect the soil moisture in different degree, and the characteristics of the land surface is correlative with soil moisture in some degree. So the improved thermal inertia and CSWI(crop short water index)method are the mature methods of remote sensing monitoring soil moisture methods. The extensive application of GIS technology, the optimization of the model of remote sensing monitoring of soil moisture and the application of microwave are the key direct of future study. |
| Keywords: | Soil moisture Drought Remote sensing Spectrum Model |
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