| Popis: |
In order to explore the evolution process and relationship between agricultural function and landscape form, promote the integration of production, living and ecological functions, and clarify the evolution process of agricultural function and landscape form in the Pearl River Delta since the reform and opening up, the ecological service value table and landscape pattern index per unit area of the ecosystem were used to analyze. From 1980 to 2018, the production function value of agricultural food and raw materials decreased from 2.081 billion yuan to 1.745 billion yuan, the leisure and cultural function value increased from 1.183 billion yuan to 1.392 billion yuan, and the ecological regulation and protection function value increased from 21.588 billion yuan to 21.796 billion yuan. The agricultural landscape area decreased from 2 094 233.94 hm2 to 1 753 198.20 hm2, the total number of patches increased from 5 536 to 8 282, the degree of polymerization decreased from 96.732 6 to 95.878 2, and the shape index increased from 158.578 8 to 182.868 4. The research results show that the transformation of agricultural function and landscape can be summarized into three stages: From the reform and opening up to the 1990s, the production function dominants while the landscape is mainly cultivated land and mulberry-based fish ponds. From 1990s to 2010, dominated by life function, the agricultural was characterized by sightseeing experience. Since 2010, transformed into production-life-ecology functional integration leading, agricultural is often based on leisure agricultural landscape for the purpose of ecological leisure. |
