Survey And Evaluation On Reserve Resources Of Cultivated Land In Baiyin District

To correct understanding of regional present situation of reserve cultivated land resources,fully excavate potential,a comprehensive grasp the silver area of cultivated land reserve resources distribution,type,quantity,quality,and the ownership situation,objective and scientific evaluation of reserve cultivated land resources utilization condition,reasonably determine the silver area of reserve cultivated land resources development suitability and development sequence,and then for the next step to carry out land management and land management to provide basic data information,based on Arcgis software platform,take "limiting factor" evaluation method,with appropriate tilth Angle as a starting point,construction of reserve cultivated land resources is appropriate for the evaluation system of agricultural production development,the more accurately calculate the silver area and spatial distribution of the number of reserve cultivated land resources,and is not in conformity with the evaluation index,analysis of the causes of the unfavorable plow land for main get the following conclusion:(1)The total area of reserve resources in the Baiyin District is 108732.6 hm2.The appropriate tillage land 1502.21 hm2,accounting for 1.38% of the total area of reserve cultivated land resources,The main source of the grass is unused land,appropriate tillage land are mainly distributed in northern and southern areas in the silver area,area of 788.04 hm2,accounting for 52.46% of the total can be reclaimed.Among them,the largest areas of white cliff village and dam village are 318.75 hm2 and 318.31 hm2 respectively,accounting for more than 42% of the land area.(2)The distribution of cultivated land resources in the Baiyin District is mostly distributed,the spatial distribution is not uniform,the comparison is fragmented,and the development and utilization is difficult.The unfavorable plow land area wide,with a total area of 107230.39 hm2,the main limiting factors for soil thickness and parent material conditions,terrain slope and farming convenience degree.(3)The quality of farmland reserve resources in various towns and villages in the Baiyin District is different from that of other areas.For appropriate plow land,should be gradually put money in the future,combined with the surrounding farmland and local planning layout,put into a special fund for concentrated development,make its scale,form the high and stable yield farmland,designated as basic farmland protection zones,to protect it.For not plow land,according to its development and utilization of the distribution of adjust measures to local conditions,Suitable for forestry,suitable for animal husbandry,suitable for swimming,in line with the principle of protecting ecological environment and sustainable development for development and utilization.