Abstract: Based on the data of cultivated land use in the Ogan River Basin in Xinjiang in recent 30 years, in this paper the conditions and pressure of cultivated land resources were researched, and the factors affecting land use benefits were analyzed. On the premise of food security baseline, the reasonable space of agricultural structural adjustment was discussed. The results were as follows: (1) The cultivated land area in the Ogan River Basin trended to be enlarged in recent 30 years, but the per capita cultivated land area trended to be reduced, and the situation was different from different stages and counties. Cultivated land was in surplus in this basin all the time, and the surplus was increased in a fluctuation way; (2) Land use structure affected the benefits of cultivated land to some extent, the higher the proportion of graincrop sown area was, the lower the per capita agricultural gross output value and annual per capita net income of rural households would be. It was effective for increasing agricultural output to adjust the agricultural structure and reduce the proportion of graincrop sown area; (3) Considering the control of cultivated land and 30% storageconsumption ratio of grain, it was predicted that the proportion of graincrop sown area in 2015 and 2020 will be lower than that in 2009, and there will be a certain space to adjust the agricultural structure. Because of the difference among counties, the predicted values were adjusted to be more reasonable. The implementation of grain growing subsidy policy should be strengthened so as to improve the positivity of farmers to grow grain crops.

Key words: font-family: 宋体, mso-bidi-font-family: 宋体, mso-font-kerning: 1.0pt, mso-ansi-language: EN-US, mso-fareast-language: ZH-CN, food security')">mso-bidi-language: AR-SA">food security, ')">pressure of cultivated land, ')">deficit/surplus, ')">agricultural structural adjustment, Ogan River Basin