基于Landsat的滇池流域景观时空格局演变
|
摘要
利用景观格局指数分析方法,对滇池流域土地利用现状、土地利用类型相互转化特征、景观格局指数变化规律及景观空间位置迁移轨迹进行了探讨。结果表明:2015年滇池流域景观组成以建设用地、水域、林地和耕地为主,分别占了研究区总面积的34.51%、23.5%、15.87%和15.04%;地类之间相互转化情况较为复杂,频繁,建设用地以转入为主,耕地则以转出为主;流域的斑块数量和斑块密度持续增大,景观破碎化程度加深。受昆明市不断向南扩张的影响,其建设用地、耕地和水域质心均向南部迁移。
In this study, landscape pattern index analysis method was used to discuss the present situation of land use in Dianchi Lake Basin, the characteristics of mutual transformation of land use types, the change regularity of landscape pattern index and the trajectory of landscape spatial location migration. The results showed that: In 2015, the landscape composition of Dianchi Lake Basin was mainly constructive land, water area, forest land and cultivated land, which accounted for 34.51%, 23.5%, 15.87% and 15.04% of the total area of the study area, respectively. The transformation between land types was more complex and frequent. Construction land was mainly transferred into the basin, while cultivated land was mainly transferred out. The number and density of patches in the basin continued to increase, and the degree of landscape fragmentation deepened. Influenced by the continuous expansion of Kunming to the south, the centroid of construction land, cultivated land and water moved to the south.
In this study, landscape pattern index analysis method was used to discuss the present situation of land use in Dianchi Lake Basin, the characteristics of mutual transformation of land use types, the change regularity of landscape pattern index and the trajectory of landscape spatial location migration. The results showed that: In 2015, the landscape composition of Dianchi Lake Basin was mainly constructive land, water area, forest land and cultivated land, which accounted for 34.51%, 23.5%, 15.87% and 15.04% of the total area of the study area, respectively. The transformation between land types was more complex and frequent. Construction land was mainly transferred into the basin, while cultivated land was mainly transferred out. The number and density of patches in the basin continued to increase, and the degree of landscape fragmentation deepened. Influenced by the continuous expansion of Kunming to the south, the centroid of construction land, cultivated land and water moved to the south.
引文
[1]于洋,张民,钱善勤,等. 云贵高原湖泊水质现状及演变[J]. 湖泊科学, 2010, 22(6):820～828.
[2]Hulshoff RM. Landscape indices describing a Dutch landscape[J]. Landscape Ecology, 1995(10):101～111.
[3]Turner MG, ruscher CL. Changes in landscape patterns in Georgia, USA[J]. Landscape Ecology, 1988(1):241～251.
[4]方仁建, 沈永明. 围垦对海滨地区景观演变及其质心移动的影响: 以盐城保护区部分区域为例[J]. 自然资源学报, 2015, 30(5):772～783.
[5]张华兵,刘红玉,郝敬锋. 江苏省盐城海岸湿地景观时空演变特征研究[J]. 水土保持通报, 2012, 32(6):226～229.
[6]王涛,张超,于晓童,等. 洱海流域土地利用变化及其对景观生态风险的影响[J]. 生态学杂志, 2017, 36(7):2003～2009.
[7]鲁韦坤,杨树华. 滇池流域景观格局变化研究[J]. 云南大学学报(自然科学版), 2006(S1):201～208.
[8]欧阳志云,张路,吴炳方,等. 基于遥感技术的全国生态系统分类体系[J]. 生态学报, 2015, 35( 2):219～226.
[9]Wang Z, Huang N, Luo L, Li X, Ren C, Song K, Chen J. Shrinkage and fragmentation of marshes in the West Songnen Plain, China, from 1954 to 2008 and its possible causes[J]. International Journal of Applied Earth Observation and Geoinformation, 2011, 13(3):477～486.
[2]Hulshoff RM. Landscape indices describing a Dutch landscape[J]. Landscape Ecology, 1995(10):101～111.
[3]Turner MG, ruscher CL. Changes in landscape patterns in Georgia, USA[J]. Landscape Ecology, 1988(1):241～251.
[4]方仁建, 沈永明. 围垦对海滨地区景观演变及其质心移动的影响: 以盐城保护区部分区域为例[J]. 自然资源学报, 2015, 30(5):772～783.
[5]张华兵,刘红玉,郝敬锋. 江苏省盐城海岸湿地景观时空演变特征研究[J]. 水土保持通报, 2012, 32(6):226～229.
[6]王涛,张超,于晓童,等. 洱海流域土地利用变化及其对景观生态风险的影响[J]. 生态学杂志, 2017, 36(7):2003～2009.
[7]鲁韦坤,杨树华. 滇池流域景观格局变化研究[J]. 云南大学学报(自然科学版), 2006(S1):201～208.
[8]欧阳志云,张路,吴炳方,等. 基于遥感技术的全国生态系统分类体系[J]. 生态学报, 2015, 35( 2):219～226.
[9]Wang Z, Huang N, Luo L, Li X, Ren C, Song K, Chen J. Shrinkage and fragmentation of marshes in the West Songnen Plain, China, from 1954 to 2008 and its possible causes[J]. International Journal of Applied Earth Observation and Geoinformation, 2011, 13(3):477～486.