用EOS/MODIS-NDVI监测枣树生长状况的分析  

Study of Jujube Growth Situation to be Monitored with EOS/MODIS-NDVI Data

作　　者：张学艺[1,2] 戴小笠[1] 张玉兰[1] 段晓凤[1] 官景得 马力文[1] 

机构地区：[1]宁夏气象防灾减灾重点实验室,宁夏银川750002 [2]南京信息工程大学,江苏南京210044 [3]宁夏永宁农业气象试验站,宁夏永宁750015

出　　处：《宁夏大学学报（自然科学版）》2012年第2期201-204,共4页Journal of Ningxia University(Natural Science Edition)

基　　金：宁夏科技厅"枣树病虫害演变规律及预测预报和综合防控技术研究"基金资助项目

摘　　要：为研究遥感技术监测宁夏枣树生长状况,以宁夏灵武马场湖农场和灵武园艺场两个长枣种植基地为研究对象,结合GPS调查,整理2005-2009年红枣生育期过宁夏境内EOS/MODIS晴空资料,并依据红枣气象灾害发生指标,分析红枣生育期归一化植被指数I_(NDV)变化及受灾前后的变化规律.结果表明,枣树全生育期I_(NDV)变化曲线为双峰型,越冬冻害对枣树前期生长影响大,并随时间推移影响逐渐消退.两基地的冻害分析和变异系数分析说明,园艺场受低温冻害的影响高于马场湖农场.受6月中下旬盛花期热干天气的影响,7月上旬至8月中旬枣树I_(NDV)总体上较正常年份偏低,但到了8月下旬后影响消失.运用MODIS-NDVI能够进行快速监测气象灾害,可为在避灾规划及防御、指导种植区选择方面提供参考.This paper proved that remote sensing technology could be used to monitor the growth situation of jujube based on the data collected from two long-jujube planting bases, Ningxia Lingwu Racecourse Lake farm and Lingwu gardening field, as research objects. Based on the analysis of the cloudless sky EOS/MODIS data of the jujube child-bearing period from 2005 to 2009 through the Ningxia border, combined with GPS investigation and the indicators of jujube meteorological disaster occurred, the relationship between the NDVI changes and the meteorological disaster happened during the whole jujube growth period was revealed. It was finding that the NDVI curve during the whole growth stages of the jujube was a double peak type. The influence of the overwintering cold injury was more severe to the early growth stage of jujube, whereas the injury effect vanished over time. Further deep analysis of frost damage and variation coefficient indicated that the injury effect of the overwintering cold was severer to the Lingwu gardening field compared with the Lingwu Racecourse Lake farm. From the impact of florescence hot dry weather in late June, jujube NDVI values in early July to mid-August on the whole year lower than normal, However, the effects disappeared till late of August. In a summary, MODIS-NDVI could be used to monitor meteorological disasters rapidly, and provided the technical supports and guidance in the field of meteorological disaster prevention and selection of cultivation area.

关 键 词：EOS/MODIS 长枣 归一化植被指数INDV 遥感监测 生长状况 

分 类 号：TU43[建筑科学—岩土工程] O344[建筑科学—土工工程]