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FOREST RESOURCES WANAGEMENT ›› 2022›› Issue (3): 81-88.doi: 10.13466/j.cnki.lyzygl.2022.03.013

• Scientific Research • Previous Articles     Next Articles

Simulation of Landscape Pattern of Agricultural and Forestry Land in Hegang City Based on Ann-CA-Markov Model

JIA Jingmo1(), SUN Zhao2, GUI Xinru1, MAO Liang1()   

  1. 1. School of Landscape Architecture,Northeast Forestry University,Harbin 150040,China
    2. Chinese Academy of Forestry,Beijing 100091,China
  • Received:2022-04-21 Revised:2022-05-10 Online:2022-06-28 Published:2022-08-04
  • Contact: MAO Liang E-mail:jiajingmo050729@163.com;maoliang7802@163.coms

Abstract:

Hegang City,Heilongjiang Province was selected as the research area.Based on its Landsat remote sensing images and DEM data in 2000,2010 and 2020,Fragstats 4.0 software was used,and the Ann-CA-Markov coupling model was utilized to study the changes in the landscape pattern of agricultural and forestry land in the city from 2000 to 2020,and simulated and predicted the landscape pattern in 2030.The results showed that from 2000 to 2020,the area of cultivated land in Hegang City decreased by 197.9824 km2,and the area of forest decreased by 52.7252 km2;the land use situation in 2030 was simulated and predicted,the area of cultivated land was expected to increase by 1.0368 km2,and the area of forest was expected to decrease by 0.0648 km2;and relevant pattern index was calculated.The degree of fragmentation of agricultural and forestry land in Hegang City was relatively low,but it was subject to strong external interference.Further optimization and adjustment of the landscape pattern should be carried out to continuously reduce the impact on the ecological environment and ensure food and ecological security.

Key words: landscape pattern, simulation forecast, agricultural and forestry land, urban area, fragmentation

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