摘要
干旱是内蒙古最为频发、最为严重的气象灾害之一。针对这一事实，本文对利用气象卫星ＮＯＡＡ／ＡＶＨＲＲ资料遥感监测土壤干旱方法进行了研究。其主要内容有：提出了适用于极轨气象卫星资料的、可以较好地反映土壤干旱程度的干旱指数，并生成了干旱指数数字型图象；建立各层土壤含水量与干旱指数之间的关系模式。基于上述工作，生成了实验区土壤干旱等级图，利用该图我们可以分析干旱发生区域，不同区域的干旱程度，统计实验区内不同干旱程度土地的面积等旱情信息，为有关部门合理安排、指导农牧业生产、抗旱救灾。
Drought is one of the most serious and frequent meteorology disasters in Inner Mongolia. In this study, drought indexes were found and the relation models between drought index and soil moisture were set up. On the base of these work. We generated the grade map of soil drought. In the map you can obtain the information of drought in a region, such as drought affected area, drought grade of a part and macrospace distribution information of drought. Such information is very useful for the arrangement of agricultural and husbandry production, and resistance and relief of drought.
出处
《中国草地》
CSCD
1996年第5期40-45,共6页
Grassland of China
关键词
干旱
气象卫星
土壤含水量
遥感监测
Meteorological satellite,\ Drought index,\ Soil moisture
