[1]WANG Liangyu,DU Huishi.Dynamic Evolution and Simulation Prediction of Aeolian Vegetation in Songnen Sandy Land in Recent 35 Years[J].Research of Soil and Water Conservation,2018,25(04):380-385.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
25
Number of periods:
2018 04
Page number:
380-385
Column:
Public date:
2018-06-13
- Title:
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Dynamic Evolution and Simulation Prediction of Aeolian Vegetation in Songnen Sandy Land in Recent 35 Years
- Author(s):
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WANG Liangyu, DU Huishi
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College of Tourism and Geographical Science, Jilin Normal University, Siping, Jilin 136000, China
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- Keywords:
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aeolian geomorphology; vegetation coverage; dynamic evolution; model forecasting; Songnen Sandy Land
- CLC:
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S157.1
- DOI:
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- Abstract:
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Under the influence of global climate change and human activities, aeolian sand-vegetation has changed obviously in Songnen Sand Land. Based on the Landsat series images, the meteorological and socio-economic data of the study area, the dynamic evolution process and driving factors of aeolian sand—vegetation were analyzed in Songnen Sandy Land during 1980 to 2015. Then the future development of the vegetation was simulated and predicted. The results showed that, the area of aeolian sandy landform increased by 355.00 km2 in recent 35 years, with increase rate of 21.43%, which reached up tp the maximum in 2000, and then continued to decrease; the vegetation area decreased by 812.29 km2, while the area of high and low vegetation area fluctuated downward, and decreased by 7 919.35 km2 and 15 479.84 km2, respectively; The middle vegetation coverage area increased with net increase of 22 587.90 km2; the sand cover area was negatively correlated with the area of low vegetation coverage. According to prediction, the area of aeolian sandy landform in Songnen Sandy Land showed the decreasing trend in 2020, while the vegetation coverage increased, the low vegetation coverage area increased by 4 292.95 km2. The dynamic evolution of aeolian sand—vegetation in Songnen Sandy Land was controlled by regional climate change and social economic development, and had a strong correlation with social and economic factors. This study can provide scientific basis for sandstorm control and regional sustainable development in Songnen Sandy Land.