Abstract: Long-term stationary monitoring for 3 years in a row was conducted of soil and water loss in citrus orchards of (2 different) types of set-up,and studies carried out of annual dynamic changes in soil water content in 4 types of citrus (orchards) in northwest Guangxi.The results showed that generally soil and water loss declined year after year in the 2 citrus orchards of different set-up,and the runoff coefficient of the orchard on slopeland was higher than that on terraced fields;The soil moisture contents were related to soil profile,set-up of the orchard and parent material of the soil,and in particular positively to the monthly rainfall.Therefore,different measures for management of soil water regime should be adopted for these orchards in different month. 

Key words: new settlement area, citrus orchard, soil and water loss, soil moisture