Study On County Agricultural Land Consolidation And Its Ecological Benefit Based On Landscape Ecology

Agricultural land consolidation is the important measure to guarantee the quantity and quality of regional cultivated land and its ecological security. In recent years, with the sharp contradiction between supply and demand of construction land, the situation of agricultural land, especially cultivated fields protection is more and more serious,which results in a new challenge to agricultural land consolidation. This paper applied the agricultural land renovation potential calculation model and the GIS spatial analysis method, revealed the agricultural land renovation potential of quantity and quality in Min Qing, and studied the potential of the agricultural land renovation in the studied area by partition study. The Landscape ecology theory and method was used to reveal the differences in the quantitative structure of the agricultural land renovation as well as the spatial pattern, which has laid a reasonable and practical foundation for carrying out the comprehensive evaluation of the agricultural land renovation.Appling the ecological service value estimation method of Costanza, this paper tried to make up for the existed method and model based on the previous studies, it has put out the correction coefficient of the land ecological service value in Min Qing, and has studied the changes of the ecological service value before and after the renovation of the agricultural land.The result shows that:(1) Minqing quantity potential of agricultural land management is124.88hm2,the quality potential is8211.61103kg/a.The first level of potential area for agricultural land management contains the town of Tazhuang,Shanglian,Shenghuag and Dongqiao.The second level potential areas mainly contains the town of Meixi,Bandong,Julin,Xiong jiang and Xiazhu.The third level potential areas mainly contains town of Yunlong,Bai zhang,Baizhong,Chiyuan,Jinsha and Sanxi.(2) Through the agricultural land consolidation, the landscape structure and the landscape pattern within the remediation zone have all changed.(3) Through the agricultural land consolidation, the ecological service value of Minqing have increased by6728200yuan. Based on these changes, this article put forward some countermeasures and suggestions for the agricultural land consolidation in Minqing.