基于稳定映射变化轨迹分析的厦门土地利用时空演化  

Spatio-temporal pattern analysis of land use change trajectories based on stability mapping in Xiamen

作　　者：李晖[1] 冯莉[2] 聂芹[1] 孙凤琴[1] 吴学文[1] 

机构地区：[1]厦门理工学院空间信息科学系,福建厦门361024 [2]河海大学地球科学与工程学院地理信息科学系,南京211100

出　　处：《生态学杂志》2016年第8期2132-2143,共12页Chinese Journal of Ecology

基　　金：福建省教育厅科技项目(A类)(JA13239);福建省自然科学基金项目(2015J01175);国家自然科学基金项目(41401377)资助

摘　　要：以1983—2010年5个时相的Landsat MSS、TM为数据源,综合改进稳定映射变化轨迹分析、土地利用动态度、景观格局指数、聚类分析等方法,分析了海湾型城市厦门土地利用时空演化特征。结果表明:1983—2010年厦门市林地和未利用地显著减少、建设用地持续增加、耕地先增加后减少、水体相对稳定;变化轨迹被分为7类变化过程,变化过程中土地利用主要流向耕地和建设用地;转化为耕地集中在1983—1993年,占厦门市域总面积的9.2%,其中由林地转化面积占市域总面积的5.17%;建设用地由侵蚀林地、耕地和大规模填海造地而来,扩展方式经历了外围式扩展到填充式增长,城市形态由不稳定形态向稳定形态演化,并从岛内逐步扩展至岛外的近郊和远郊;受地形的保护,海拔较高的林地保护较好,地形平坦地区的耕地和林地出现了大量的相互转化,占市域总面积的14.64%;城市空间构型由集聚型、相对集聚型和相对分散型决定,三者面积之和超过市域总面积的80%。随着城市化进程的推进,城市空间构型由相对分散型向相对集聚型发展。分散型中有超过1300种变化轨迹集中在岛外区域的河流入海口,占市域总面积的4.75%,说明该地区土地利用处于极不稳定的状态。研究结果为厦门市有关部门在合理利用土地资源、控制填海造地规模、科学安排填海造地等方面提供基础数据支撑。Based on Landsat MSS/TM images in 1983, 1993, 2001, 2006 and 2010, spatio- temporal patterns of land use change in Xiam analysis of stability mapping, land use change en were analyzed. An improved change trajectory degree landscape indexes and systematical cluste- ring method were synthetically applied in this study. The results showed that woodland and un- used land decreased significantly, build-up land increased continually, cultivated land first in- creased and then decreased, and water body almost unchanged from 1983 to 2010. During the study period, the trajectory of land use change involved seven process categories. Quantitatively, the main transfer directions of land use types were the conversion to cultivated land and build-up land. The conversion to cultivated land mainly occurred in the period between 1983 and 1993, accounting for 9.2% of the total area of Xiamen, among which the area converted from forest land accounted for 5.17% of the total area. Build-up land was mainly converted from erosive wood- land, cultivated land and marine reclamation land; Extension mode had been a peripheral type to filling type growth, with urban form evolution from unstable form to stable form, and gradual ex- tension from the inside island to suburbs and outer suburbs of the outside island. Due to the topo-graphic conditions, the woodlands were well protected at high altitude, while in flat areas the conversion between woodland and cultivated land happened frequently, with the conversion pro- portion of 14.64% of total area. The urban spatial structure was determined by the clustered, rel- atively clustered and relatively dispersed types, and the total area of these three types was more than 80% of the whole city. Along with the urbanization, urban spatial structure was developed from relatively dispersed type to relatively clustered type. There were more than 1300 kinds of trajectory in dispersed type located on the river entrances to the sea in the outside island, ae- counting for 4.75% of the total area of the city,

关 键 词：土地利用变化 变化轨迹 稳定映射 时空特征 厦门市 

分 类 号：F301.2[经济管理—产业经济]