中文摘要：

中等分辨率成像分光辐射函数(MODIS ) 数据对广阔程度很合适，为它的高时间的分辨率监视的长期、动态的干旱，高光谱分辨率和中等空间分辨率。合成提高的植被索引(EVT ) 和从 MODIS 数据 MOD11A2 和 MOD13A2 获得的合成陆地表面温度(T_s ) 被用来构造 EVI-T_s 空格。并且温度植被干索引(TVDI ) 被计算在 Guangxi 省评估农业干旱，在 2006 的 10 月的中国。结果证明在 Guangxi 的干旱区域显然从 9 月的中间正在增加并且连续地败坏到 11 月的中间。TVDI，来自 EVI-T_s 空间，能有效地显示空间分发和干旱的时间的进化，以便它能为预报提供强壮的技术支持在华南的农业干旱。

英文摘要：

Moderate resolution imaging spectroradiometer （MODIS） data are very suitable for vast extent, long term and dynamic drought monitoring for its high temporal resolution, high spectral resolution and moderate spatial resolution. The composite Enhanced Vegetation Index （EVI） and composite land surface temperature （Ts） obtained from MODIS data MOD11A2 and MOD13A2 were used to construct the EVI-Ts space. And Temperature Vegetation Dryness Index （TVDI） was calculated to evaluate the agriculture drought in Guangxi province, China in October of 2006. The results showed that the drought area in Guangxi was evidently increasing and continuously deteriorating from the middle of September to the middle of November. The TVDI, coming from the EVI-Ts space, could effectively indicate the spatial distribution and temporal evolution of drought, so that it could provide a strong technical support for the forecasting agricultural drought in south China.