| Based on the land style quality structure,quantity structure,spatial structure and land use structure,the land structure and its characters in the gully area of Loess Plateau were analyzed.The results indicated: the ridge-projection slope land,gully slope land and groove land were the main land use style,which account for 75.16% of the total land area;The total land quality is not very good,the grassland,farmland and forestland account for 44.45%,23.47% and 18.51% of the total land area,respectively;The spatial distribution of land style showed stratification,inlaid and non-uniformity;The ratio among farmland,forestland and graze land was 1.5∶1∶2.The land structure was very instable because of farmland resource shortage,forestland degradation and pastureland desertion,so the regulation of land use structure and reasonable development are very necessary for ensuring the sustainable development of the land structure. |