[Objective] This paper aims to study the monthly water production to guide water resource management and agriculture irrigation scheduling.[Methods] Per capita water possession is only 290 m3 in Jinan City

which is less than one seventh of the nation's level. So Jinan City is in extreme lack of water resources. By taking Jinyangchuan watershed in southern area of Jinan City as the case research area

this paper estimated the water yield under the assistance of image interpretation of remote sensing(RS) and spatial analysis of geographic information system(GIS). First of all

image preprocessing of TM remote sensing data of 2009 was done under ERDAS IMAGINE 9.1 platform

including image synthesis

mosaic

enhancement and correcting. Seven kinds of land use types were identified through supervised classification

the land use map of study area was produced. Second

the soil map of Jinan was vectorized in ARCGIS 9.3 to get the soil texture map in the study area. Third

this study adopted Thornthwaite and Mather (T-M) water balance model to calculate the water balance

obtained the runoff from various land use-soil texture types and cycle of water deficit

moisture surplus

soil moisture recharge and soil moisture utilization in Jinyangchuan watershed. Finally

the runoff path and sub-watershed were generated with Digital Elevation Model (DEM) in EMS-I.WMS.v8.0 (Watershed Modeling System). Then the sub-watershed map was intersected with land use-soil texture map

runoff yield of every sub-watershed in different hydrological years was calculated using weather data from 1960 to 2 011 and subsequently spatially expressed.[Results] The total annual runoff was 281.0 mm

water yield was 51 million m3 in Jinyangchuan watershed in 2011. In January

March

April

June and October

there was water deficit. In February

November and December the soil water was supplied by precipitation; In May

July to September

there was water surplus. The annual average water yield was separately 83 million m3

48 million m3 and 22 million m3 in wet year

normal flow year and low flow year.[Conclusion] There is water surplus in February

July to November of wet year (25%)

in February

March

July to November of flat water year (50%)

in January

February

July to September

December of dry year (75%).