Abstract:The construction of high standard farmland is of great significance to the development of modern agriculture, ensure food security and promote the sustainable development of rural areas. It is an important prerequisite for the construction of high standard farmland by scientifically and rationally delimiting the sequence of priority areas. Taking Zhuozhou City of Hebei Province as an example, from four aspects of cultivated land site conditions, infrastructure, spatial layout and ecological protection, an evaluation index system of high standard farmland construction condition was constructed. Using the analytic hierarchy process (AHP) to evaluate the indexes of each index and comprehensively evaluate the construction conditions of high standard farmland. The matter-element model was applied to calculate the comprehensive correlation degree of each evaluation condition. Through the factor combination method, the limits of limiting factors in each evaluation unit were found, the Zhuozhou high standard farmland construction priority area was finally divided into four grades. The results showed that the construction conditions of high standard farmland in Zhuozhou City was good as a whole, the proportion of the grade 1 of priority construction was 17.58%, the proportion of grade 2 area suitable for adjustment was 48.60%, the area ratio of grade 3 area in the key construction was 32.70%, and the area ratio of reserve regulation area was 1.12%. Grade 1 and grade 2 region showed obvious outward from the center of the diffusion trend and spatial distribution had a strong continuity, suitable for large-scale, high standard farmland construction. The grade 3 area was distributed in the west of Zhuozhou City, the level of restriction factors was high and the number was large, it was a difficult area to build, and the distribution of the grade 4 was less. The research results can provide reference for the reasonable delimit and result verification of high standard farmland construction priority area.
