CAJ | 학술논문

针对干旱对农业生产的影响,选取关中平原冬小麦时间序列的条件植被温度指数(VTCI)遥感干旱监测结果,采用层次分析法确定了冬小麦不同生育期旱情对产量影响的权重系数,计算加权VTCI,并应用一元线性回归分析了加权VTCI指数与县域尺度单产统计数据间的相关关系.通过对关中地区5市2000年～2007年主要生育期的VTCI和单产分析,表明关中大部分地区加权VTCI和单产有着较好的线性相关关系,同时验证了用VTCI监测关中的旱情是可行的.
침대간한대농업생산적영향,선취관중평원동소맥시간서렬적조건식피온도지수(VTCI)요감간한감측결과,채용층차분석법학정료동소맥불동생육기한정대산량영향적권중계수,계산가권VTCI,병응용일원선성회귀분석료가권VTCI지수여현역척도단산통계수거간적상관관계.통과대관중지구5시2000년～2007년주요생육기적VTCI화단산분석,표명관중대부분지구가권VTCI화단산유착교호적선성상관관계,동시험증료용VTCI감측관중적한정시가행적.
The time series drought monitoring results of Vegetation Temperature Condition Index(VTCI)of winter wheat in the Guanzhong Plain were used to develop an approach of estimating drought impact on wheat yield.Weighted VTCI values in the key growth periods and development stages of winter wheat were calculated by using analytic hierarchy process method in the five covered areas in the Guanzhong Plain,China.A linear correlation analysis was applied to study the correlation between wheat yields and the weighted VTCI values of the years 2000-2007.The results show there is significant correlation between wheat yield and weighted VTCI values in most part of the Plain,and they also prove that VTCI is feasible to monitor the drought in Guanzhong Plain.