Spatiotemporal Evolution of Wind Erosion and Ecological Service Assessments in Northern Songnen Plain, China

Jixian Mo, Jie Li, Ziying Wang, Ziwei Song, Jingyi Feng, Yanjing Che, Jiandong Rong and Siyu Gu ()
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Jixian Mo: College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
Jie Li: College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar 161006, China
Ziying Wang: College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
Ziwei Song: College of Life Science and Agriculture and Forestry, Qiqihar University, Qiqihar 161006, China
Jingyi Feng: College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
Yanjing Che: College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China
Jiandong Rong: Qiqihar Experimental Station, Heilongjiang Province Hydraulic Research Institute, Qiqihar 161006, China
Siyu Gu: College of Resources and Environment, Northeast Agricultural University, Harbin 150030, China

Sustainability, 2023, vol. 15, issue 7, 1-20

Abstract: The northern Songnen Plain in China is one of the most important areas for grain production in China, which has been increasingly affected by wind erosion in recent years. This study analyzed the dynamic spatiotemporal distribution of wind erosion in the northern Songnen Plain from 2010 to 2018 using the Revised Wind Erosion Equation model. The ecological service function of the study area was evaluated by constructing a spatial visualization map of windbreak and sand-fixation service flow. Wind erosion worsened from 2010 to 2018. The gravity center of different categories of wind erosion intensity moved to the northeast, indicating a risk of spreading from south to north. The amount of wind erosion in 2018 increased by 50.78% compared with 2010. The increase of wind force and temperature and the decrease of precipitation may have contributed to these trends. Long-term wind erosion led to soil coarsening, decreased soil organic matter, soil organic carbon, and total nitrogen contents, and increased soil CaCO 3 and pH, which may be one reason for slight soil salinization observed in some regions. Therefore, windbreak and sand-fixation management and eco-environmental protection are urgently required. This study is the first detailed assessment of wind erosion in the northern Songnen Plain on a regional scale and the first to propose measures for ecological restoration and desertification control.

Keywords: wind erosion; dynamic process; spatiotemporal distribution; ecological effects; sustainable management (search for similar items in EconPapers)
JEL-codes: O13 Q Q0 Q2 Q3 Q5 Q56 (search for similar items in EconPapers)
Date: 2023
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