Abstract:

To implement the strictest farmland protection system and further standardize the balance management of arable land occupation and compensation, Danjiangkou City had carried out the survey and evaluation of arable land reserve resources in the whole region. Taking the base map data of farmland reserve resources survey and evaluation in Danjiangkou City issued by Hubei Province as the research object, according to the evaluation criteria in the “Work Plan for the Survey and Evaluation of Cultivated Land Reserve Resources in Hubei Province” (EZZB [2021] No.15), the evaluation of farmland reserve resources in Danjiangkou was carried out, and further risk assessment was carried out on the plots that were evaluated as suitable for cultivation. The evaluation results showed that the total suitable arable land area of the survey and evaluation of cultivated land reserve resources in Danjiangkou City was 106.5 hm², accounting for 43.15% of the area of the assessment base map. Among which 56.2 hm² was grassland and 50.3 hm² was bare land. The areas suitable for cultivation were at or below the middle risk, and the area of low risk was only 4.9 hm², accounting for 1.97% of the area of the assessment base map. The area of lower risk was 74.5 hm², accounting for 30.18% of the area of the assessment base map. The area of medium risk was about 27.1 hm², accounting for 10.99% of the area of the assessment base map. The reserve cultivated land in Danjiangkou City had a large area with medium ecological risk, which was mainly distributed around the reservoir area of the South-to-North Water Diversion Project, and required appropriate ecological protection and restoration.

Key words: cultivated land reserve resources, investigation and evaluation, areas suitable for cultivation, risk assessment, Danjiangkou City