浙江省土地景观格局演变及其生态服务价值效应分析.

Research on the evolution of land use landscape patterns and the value effect of ecosystem services can clarify the function of regional ecological environments and promote the healthy development of ecosystems. Based on land use remote sensing image interpretation data, this study analyzed the evolution of land use landscape patterns and ecosystem service value effects in the Zhejiang province from 1995 to 2015 to explore the correlation between landscape pattern index and ecosystem service value. The results showed that: (1) Over the past 20 years, the land use landscape of the Zhejiang province changed dramatically. In particular, the area of cultivated land and woodland decreased, whereas the area of urban and village land, water area, and grassland increased. In addition, the dynamic attitude of construction land increased by 8.21%, and the degree of change in arable and forest land was negative. The unidirectional transfer of woodland and farmland to construction land was the largest, followed by the conversion from farmland to forestry. (2) The spatiotemporal evolution of landscape patterns is complex, and the dispersion, aggregation, and connectivity of land patches are varied. In particular, the fragmentation of arable land and meadows was high, the dominance of construction land increased, and the landscape pattern dominated by woodland and cultivated land gradually transformed into an urban landscape. (3) The total value of ecological services first increased and then decreased, losing 10.318 billion yuan. Spatially, the areas of high and extremely high ESV values decreased, while the areas with medium and low ESV values gradually increased. The habitat quality of the southwest was better than that of the northern and southeastern coastal areas. (4) The total value of ecological services is strongly positively correlated with LPI, cohesion, and AI, and strongly negatively correlated with NP, ENN_AM, and SHDI. Overall, future land planning should attach importance to the effect of landscape pattern and spatial allocation on ecological service function, enhance the adaptability and stability of ecosystems to environmental changes, optimize the structure of regional “three living lands” and promote the coordinated development of economy, society, and ecological environment. [ABSTRACT FROM AUTHOR]

开展土地利用景观格局演变及其生态系统服务价值效应研究，可明晰区域生态环境功能状况并促进生态系统健 康发展。基于土地利用遥感影像解译数据，分析浙江省1995~2015年土地景观格局演变及其生态系统服务价值效应，并 探究景观格局指数与生态服务价值间的相关性。结果表明：（1）20年间浙江省土地景观变化剧烈，耕地和林地面积减 少，城镇村用地、水域与草地面积增加。建设用地动态度增幅达8.21%，耕地和林地变化度为负。林地和耕地向建设用 地单向转移量最大，其次是耕林地二者间的转化。（2）土地斑块分散、聚合和连通状况变化多样，景观格局时空演变 复杂化。耕地和草地破碎度高，建设用地优势度上升，以林地和耕地为主导的景观格局逐渐向城市景观转变。（3）生 态服务总价值呈先增后减趋势，共损失103.18亿元。空间上ESV极高值和高值区面积减小，中值与低值区逐渐蔓延，生 境质量浙西南优于浙北与东南沿海区域。（4）生态服务总值与最大斑块数、结合度和聚合度呈强正相关，与斑块数、 平均邻近距离和香农多样性呈强负相关。据此建议：未来土地规划应重视景观格局空间配置对生态服务功能的影响，增 强生态系统对环境变化的适应力和稳定性，优化区域三生用地结构，以促进经济—社会—生态环境的协调发展。 [ABSTRACT FROM AUTHOR]