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Land Use and Landscape Pattern Changes in the Sanjiang Plain, Northeast China
X. H. Liu, Y. An, G. H. Dong and M. Jiang
2018
发表期刊Forests
卷号9期号:10
其他摘要Agricultural reclamation has been the major threat to land use changes in the Sanjiang Plain, Northeast China, over the past decades. However, spatial and temporal dynamics of land use and landscape, especially in the recent years, are not well known. In this study, land use and landscape pattern changes from 1982 to 2015 were analyzed using remote sensing data by splitting the period into five periods. The results indicated that the largest reduction of forestland area was 648.70 km(2) during 1995-2000, and the relative change was -1.84%. The converted area of forestlands to dry farmlands in this period was about 90% of the total reduced forestland area. Marshland areas decreased remarkably by 63.29% and paddy fields increased by 1.78 times from 1982 to 2015. Paddy fields experienced large conversion into dry farmlands during 2005-2010 (1788.57 km(2)), followed by a reverse conversion from 1995 to 2000 (2379.60 km(2)). The difference of relative change revealed development speed of paddy field was faster than that of dry farmlands among the five periods. Landscape pattern was analyzed using class- and landscape-level metrics. The landscape diversity index and number of patches increased, which showed that the degrees of the forestland, marshland, and cropland landscape fragmentation were aggravated. Our study provides the effective means of land use dynamic monitoring and evaluation at the landscape level for the existing forestlands and marshlands protection.
文献类型期刊论文
条目标识符http://ir.iga.ac.cn/handle/131322/9203
专题湿地生态系统管理学科组
推荐引用方式
GB/T 7714
X. H. Liu, Y. An, G. H. Dong and M. Jiang. Land Use and Landscape Pattern Changes in the Sanjiang Plain, Northeast China[J]. Forests,2018,9(10).
APA X. H. Liu, Y. An, G. H. Dong and M. Jiang.(2018).Land Use and Landscape Pattern Changes in the Sanjiang Plain, Northeast China.Forests,9(10).
MLA X. H. Liu, Y. An, G. H. Dong and M. Jiang."Land Use and Landscape Pattern Changes in the Sanjiang Plain, Northeast China".Forests 9.10(2018).
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