Guo Xin, Gao Yong, Zhang Chao, et al. Effects of Different Vegetation Restoration Types on Soil Physical and Chemical Properties of Abandoned Land in Coal Logistics Park[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 67-73.
DOI:
Guo Xin, Gao Yong, Zhang Chao, et al. Effects of Different Vegetation Restoration Types on Soil Physical and Chemical Properties of Abandoned Land in Coal Logistics Park[J]. Bulletin of Soiland Water Conservation, 2022, 42(2): 67-73. DOI: 10.13961/j.cnki.stbctb.2022.02.010.
Effects of Different Vegetation Restoration Types on Soil Physical and Chemical Properties of Abandoned Land in Coal Logistics Park
[Objective] The effects of different vegetation restoration types on soil physical and chemical properties in abandoned land of coal logistics park were explored in order to provide scientific reference for ecological restoration of similar abandoned land. [Methods] This research took soils of 3 typical vegetation restoration types (arbor mixed forest
shrub forest and grassland) as the research object
and the bare land was used as a control
the physical and chemical properties of the soil under different vegetation restoration types were measured
and the differences
correlations and principal components were analyzed. [Results] ① Compared with the bare land
after ten years of restoration of arbor mixed forest
shrub forest and grassland
the total porosity of the soil increased by 115.17%
62.06%
7.57% respectively
and the contents of soil water increased by 105.99%
71.21%
67.05% respectively
while the soil bulk decreased by 8.98%
5.13%
4.85% respectively. ② The content of soil organic matter in arbor mixed forest and shrub forest increased significantly
and grassland promoted the content of alkali-hydrolyzed nitrogen and available potassium significantly. The content of alkali-hydrolyzed nitrogen and available phosphorus showed significant “surface aggregation” in the vertical direction
while the content of available potassium showed a significant deep accumulation. ③ Organic matter showed a significant positive correlated with alkali-hydrolyzed nitrogen
available phosphorus
and capillary porosity (p<0.05)
and alkali-hydrolyzed nitrogen and available phosphorus showed an extremely significantly positively correlation (p<0.01)
that meant
soil organic matter played an important role in improving soil physical and chemical properties and nutrient cycling. [Conclusion] The soil quality of different restoration types showed an order as: arbor mixed forest>shrub forest>grassland>bare land. The planting of arbor mixed forest and shrub forest can effectively improve the physical and chemical properties of soil in the abandoned land of coal logistics park.
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