| 水分盈亏指数及其在农业干旱监测中的应用 |
| |
| 引用本文： | 苏永秀,李政,吕厚荃.水分盈亏指数及其在农业干旱监测中的应用[J].气象科技,2008,36(5):592-595. |
| |
| 作者姓名： | 苏永秀 李政 吕厚荃 |
| |
| 作者单位： | 1. 广西壮族自治区气象减灾研究所/国家卫星气象中心遥感应用示范基地,南宁,530022
2. 中国气象局国家气象中心,北京,100081 |
| |
| 基金项目： | 中国气象局推广项目，广西气象局重点科研项目，中国气象局多轨道业务建设项目 |
| |
| 摘 要： | 从广西农业生产特点和农业干旱监测业务实际需要出发,建立了综合考虑降雨量和同期作物需水量的基于作物水分盈亏原理的农业干旱监测模型,农业干旱监测等级指标,并用该指标分析了1961～2004年广西双季稻、甘蔗生育期间农业干旱的时空分布特征,用自治区农业厅同期旱情资料对2004年广西春旱发生情况进行监测验证.结果表明:水分盈亏指数模型能很好地反映旱情,是一种实时的干旱监测方法,能运用于广西农业干旱监测业务,在每季干旱发生频率的时空分布特征分析上得到的结果也与实际情况相符合.
|
| 关 键 词： | 农业干旱 水分盈亏指数 动态监测 水稻 甘蔗 |
| 收稿时间： | 2007/12/30 0:00:00 |
| 修稿时间： | 3/3/2008 12:00:00 AM |
Application of Water Budget Index in Agricultural Drought Monitoring |
| |
| Su Yongxiu,Li Zheng and Lu Houquan.Application of Water Budget Index in Agricultural Drought Monitoring[J].Meteorological Science and Technology,2008,36(5):592-595. |
| |
| Authors: | Su Yongxiu Li Zheng and Lu Houquan |
| |
| Abstract: | An agricultural drought model based on water budget is established, considering rainfall and crop water requirement at the same time, the special needs of agricultural production in Guangxi, and the reality of agricultural drought monitoring, and accordingly a drought index grading system is developed. Both were used to analyze the spatial temporal distribution characteristics of the occurrence frequency of rice and sugarcane droughts in growth season in Guangxi Province in the past 44 years (1961 to 2004). Good results are obtained by using the water budget model to calculate and analyze the historical droughts in Guangxi. The near real time drought monitoring approach can be applied to the monitoring of droughts in Guangxi. The analysis results of the seasonal spatial temporal characteristics conform to the actual situation. |
| |
| Keywords: | |
| 本文献已被 维普 万方数据 等数据库收录！ |
| 点击此处可从《气象科技》浏览原始摘要信息 |
| 点击此处可从《气象科技》下载免费的PDF全文 |
|
