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Hongbo Gong
School of Law, Ningbo University, Ningbo 315211, China

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Journal article
Published: 25 December 2020 in Sustainability
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Carrying out coastal wetland landscape simulations and current and future ecological risk assessments is conducive to formulating policies for coastal wetland landscape planning and promoting the coordinated development of the social economy and ecological environment. This study used the Cellular Automaton (CA)–Markov model to simulate the landscape data of the study area under different scenarios in 2021 and 2025, and built an ecological risk assessment (ERS) index model to analyze the differences of spatio-temporal characteristics of ecological risks. The results showed that: (1) The test accuracy of the CA–Markov model was 0.9562 after passing through the consistency test. The spatial distribution data of landscapes under current utilization scenarios (CUSs), natural development scenarios (NDSs), and ecological protection scenarios (EPSs) were gained through simulations. (2) During 1991–2025, the landscape types of Yancheng coastal wetlands undertake complicated transfers and have vast transfer regions. Under CUSs and NDSs, a large number of natural wetlands are transferred to artificial wetlands. Under EPSs, the area of artificial wetlands declines and artificial wetlands are mainly transferred to natural wetlands. (3) The ecological risk of Yancheng Coastal Wetland increases, accompanied with significant spatial heterogeneity, which is manifested as low in the north area and high in the south area, and there exist some differences between sea areas and land areas. Ecological risk levels transfer violently.

ACS Style

Peng Tian; Luodan Cao; Jialin Li; Ruiliang Pu; Hongbo Gong; Changda Li. Landscape Characteristics and Ecological Risk Assessment Based on Multi-Scenario Simulations: A Case Study of Yancheng Coastal Wetland, China. Sustainability 2020, 13, 149 .

AMA Style

Peng Tian, Luodan Cao, Jialin Li, Ruiliang Pu, Hongbo Gong, Changda Li. Landscape Characteristics and Ecological Risk Assessment Based on Multi-Scenario Simulations: A Case Study of Yancheng Coastal Wetland, China. Sustainability. 2020; 13 (1):149.

Chicago/Turabian Style

Peng Tian; Luodan Cao; Jialin Li; Ruiliang Pu; Hongbo Gong; Changda Li. 2020. "Landscape Characteristics and Ecological Risk Assessment Based on Multi-Scenario Simulations: A Case Study of Yancheng Coastal Wetland, China." Sustainability 13, no. 1: 149.

Journal article
Published: 17 May 2019 in Sustainability
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Studying land use changes and ecological risk assessment in Yongjiang River Basin in Zhejiang Province, China, provides theoretical references for optimal configuration of land resources and maintaining stability of ecosystems. Given impacts of land use changes on landscape patterns in the Yongjiang River Basin, ecological risk assessment indexes were constructed and used to analyze temporal and spatial variation characteristics of ecological risk within different periods. Results show that (1) the construction land area was increased quickly, while the cultivated area decreased sharply. A prominent characteristic of land use changes was manifested by transforming cultivated area and forestland into construction land. The utilized degree of the land increased continuously. Spatially, the land utilized degree in northern regions was higher than that in southern regions and the degree in eastern regions was higher than that in western regions. (2) The ecological risk in the Yongjiang River Basin was intensified and the area of high ecological risk was expanded by 893.96 km2. Regions with low and relatively low ecological risks concentrated in western and southern regions of the Basin, whereas regions with high ecological risks were mainly in northern and eastern regions. Landscapes in cities and towns at a high economic development level are highly sensitive to human activities. (3) Transformation of ecological risk is complicated. Land area with the ecological risk changing from a low level to a high level was 4.15 times that with the ecological risk changing from a high level to a low level. There were 15 transformation directions among different ecological risk regions.

ACS Style

Peng Tian; Jialin Li; Hongbo Gong; Ruiliang Pu; Luodan Cao; Shuyao Shao; Zuoqi Shi; Xiuli Feng; Lijia Wang; Riuqing Liu. Research on Land Use Changes and Ecological Risk Assessment in Yongjiang River Basin in Zhejiang Province, China. Sustainability 2019, 11, 2817 .

AMA Style

Peng Tian, Jialin Li, Hongbo Gong, Ruiliang Pu, Luodan Cao, Shuyao Shao, Zuoqi Shi, Xiuli Feng, Lijia Wang, Riuqing Liu. Research on Land Use Changes and Ecological Risk Assessment in Yongjiang River Basin in Zhejiang Province, China. Sustainability. 2019; 11 (10):2817.

Chicago/Turabian Style

Peng Tian; Jialin Li; Hongbo Gong; Ruiliang Pu; Luodan Cao; Shuyao Shao; Zuoqi Shi; Xiuli Feng; Lijia Wang; Riuqing Liu. 2019. "Research on Land Use Changes and Ecological Risk Assessment in Yongjiang River Basin in Zhejiang Province, China." Sustainability 11, no. 10: 2817.

Journal article
Published: 11 April 2017 in Sustainability
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Analyzing evolution characteristics of landscape ecological risk patterns would help establish ecological risk early warning mechanism, reduce the ecological risk probability and promote coastal landscape pattern optimization. In this study, landscape pattern indices were first calculated by using multitemporal Landsat TM images acquired in years 1990, 2000 and 2010, then landscape ecological risk pattern evolution models and the spatiotemporal evolutions of ecological risk patterns of coastal zones in Zhejiang province, China were constructed and analyzed. The results demonstrate that (1) greater changes have taken place in landscape structures during the two decades, and (2) the areas of cropland, sea, woodland and water surface have decreased significantly, while the areas of built-up land, unused land and aquaculture land have increased. In 1990, coastal landscapes were mainly occupied by extremely low and low ecological risk areas. However, by 2010, the low ecological risk area apparently decreased compared to that in 1990, while extremely high and high ecological risk areas increased significantly, occupying spatial regions where originally the extremely low and low ecological risk zones located. Transition rates of ecological risk grades in the second ten years (2000–2010) were significantly lower than in the first ten years (1990–2000). The result suggests that people who originally urged to accelerate coastal landscape exploitation and development have started to concern the ecological environment protection and to pursue a mode that economic development and ecological protection are synchronously conducted.

ACS Style

Jialin Li; Ruiliang Pu; Hongbo Gong; Xu Luo; Mengyao Ye; Baixiang Feng. Evolution Characteristics of Landscape Ecological Risk Patterns in Coastal Zones in Zhejiang Province, China. Sustainability 2017, 9, 584 .

AMA Style

Jialin Li, Ruiliang Pu, Hongbo Gong, Xu Luo, Mengyao Ye, Baixiang Feng. Evolution Characteristics of Landscape Ecological Risk Patterns in Coastal Zones in Zhejiang Province, China. Sustainability. 2017; 9 (4):584.

Chicago/Turabian Style

Jialin Li; Ruiliang Pu; Hongbo Gong; Xu Luo; Mengyao Ye; Baixiang Feng. 2017. "Evolution Characteristics of Landscape Ecological Risk Patterns in Coastal Zones in Zhejiang Province, China." Sustainability 9, no. 4: 584.