Based on the principle of soil water balance, including precipitation, temperature and other observations, this article built a model of soil drought index.
从土壤水分平衡原理出发，以降水量、温度和区域水文观测等因子为基础，建立了土壤干旱指数模型。
At last, a drought index model was developed by considering the water requirement of winter wheat and the available soil water content.
最后，根据冬小麦的需水规律和土壤有效水含量构造干旱指数模型。
Based on the data of the monitoring of NOAA meteorological satellite and the observed soil moisture at the surface observation station, drought index was expatiated in Anhui Province.
本文对利用NOAA气象卫星遥感监测资料和土壤水分人工观测资料开展安徽省干旱监测的指标进行了介绍。
There are a few quantitative ones among multitudinous drought indexes and the quantification index based on the soil moisture is less.
在众多作物受旱程度指标中定量化的不多，基于土壤水分的量化指标更少。
The index of drought resistance after blossom are greatly affected by the cross effects of fertilize to soil in early winter and spray rare elements nutrition to the leaves in the following spring.
花后大扁杏的抗旱性指标的变化，主要受秋季土壤施肥和春季杏树展叶后叶面喷施微肥的交互作用影响。
A quantitative drought index is necessary for soil water management and crop yield evaluation.
农田水分管理以及产量评估都需要对土壤作物受旱状况定量化和指标化。
A quantitative drought index is necessary for soil water management and crop yield evaluation.
农田水分管理以及产量评估都需要对土壤作物受旱状况定量化和指标化。
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