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[1]CHEN Yaoyao,LUO Zhijun,QI Song,et al.Ecological Security Pattern Construction of Nanchang City Based on Ecological Sensitivity and Ecological Network[J].Research of Soil and Water Conservation,2021,28(04):342-349.

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Ecological Security Pattern Construction of Nanchang City Based on Ecological Sensitivity and Ecological Network

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 28 Number of periods: 2021 04 Page number: 342-349 Column: Public date: 2021-08-10

Title:: Ecological Security Pattern Construction of Nanchang City Based on Ecological Sensitivity and Ecological Network

Author(s):: CHEN Yaoyao^1,2, LUO Zhijun^1,2, QI Song^1,2, ZHAO Jie^1,2, YUAN Yuan^1,2, LI Fang³; (1.College of Land Resources and Environment, Jiangxi Agricultural University, Nanchang 330045, China; 2.Jiangxi Provincial Key Laboratory of Poyang Lake Basin Agricultural Resources and Ecology, Nanchang 330045, China; 3.Urban Planning Design Institute of Ganzhou, Ganzhou, Jiangxi 341000, China)

Keywords:: ecological sensitivity; landscape connectivity; ecological network; ecological security pattern

CLC:: X171.4

DOI:: -

Abstract:: Rapid urbanization areas are facing many ecological problems. The construction of ecological security pattern can coordinate the contradiction between social economic development and urban ecological security maintenance. In order to construct a scientific and reasonable ecological security pattern, Nanchang City, Jiangxi Province was taken as an example to study the ecological security pattern by integrating ecological sensitivity and ecological network. Firstly, ecological sensitivity was evaluated by selecting factors such as terrain, soil, water resources, vegetation and land use and policy protection. Then, the morphological spatial pattern analysis(MSPA)and landscape connectivity analysis were used to get the ecological sources, and the ecological corridors were simulated, and ecological nodes were identified by using Least-Cost Path Method. Finally, comprehensive ecological sensitivity evaluation results and ecological network construction results figured out the ecological security pattern of Nanchang City. The results showed that: the ecological sensitivity of Nanchang city was mainly extremely sensitive and highly sensitive, accounting for 69.55% of the total area; a total of 12 ecological sources were identified, mainly distributed in the north and south of Nanchang City; the comprehensive resistance value was low in the north and south and high in the middle; a total of 18 ecological corridors were identified, and their landscape types mainly included cultivated land, water body, forest land and wetland. These results show that Nanchang has good ecological conditions and high stability of ecological corridor, but the landscape connectivity between the north and the south is poor, and the central region is the key area of ecological restoration and protection.

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Last Update: 2021-08-20