Landscape Pattern Changes in the Xingkai Lake Area, Northeast China

Xiaohui Liu, Yuan Zhang, Guihua Dong, Guanglei Hou and Ming Jiang
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Xiaohui Liu: Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology (IGA), Chinese Academy of Sciences, Changchun 130102, China
Yuan Zhang: Key Laboratory of Geographic Information Science (Ministry of Education), School of Geographic Sciences, East China Normal University, Shanghai 200241, China
Guihua Dong: China National Environmental Monitoring Center (CNEMC), Beijing 100012, China
Guanglei Hou: Northeast Institute of Geography and Agroecology (IGA), Chinese Academy of Sciences, Changchun 130102, China
Ming Jiang: Key Laboratory of Wetland Ecology and Environment, Northeast Institute of Geography and Agroecology (IGA), Chinese Academy of Sciences, Changchun 130102, China

IJERPH, 2019, vol. 16, issue 20, 1-12

Abstract: Understanding landscape change is important for ecologically sustainable development. In this paper, we assessed the spatiotemporal variations of landscape pattern in the Xingkai Lake area using remote sensing data from 1982, 1995, 2000, 2005, 2010, and 2015. Landscape patterns of marshlands, paddy fields, dry farmlands, and their combinations were analyzed at class and landscape levels. We examined the stability of landscape types through principal component analysis based on class level indices for landscape types. The results indicated that marshland areas decreased significantly by 33.87% but paddy fields increased by 1.84 times from 1982 to 2015. The largest conversion of dry farmlands to paddy fields was 90.88 km 2 during the period 2010–2015. In contrast, the largest conversion of paddy fields to dry farmlands was 86.03 km 2 during the period 2000–2005. The difference in relative change revealed that dry farmlands had experienced a greater relative change than paddy fields since 2000. The interspersion and juxtaposition index decreased, while the number of patches grew. This showed that landscape fragmentation was increasing and the landscape pattern was becoming dispersed. Marshlands were more stable than paddy fields and dry farmlands across all time periods, except for the year 2005.

Keywords: spatiotemporal variations of landscape pattern; landscape fragmentation; landscape stability; land use changes; the Xingkai Lake area (search for similar items in EconPapers)
JEL-codes: I I1 I3 Q Q5 (search for similar items in EconPapers)
Date: 2019
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (3)

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