[1]Guo Xinyu,Yang Guang,Lu Naijing,et al.Influence of Populus Simonii Planted Forest Density on Understory in Naiman Banner of the Horqin Sandy Land[J].Research of Soil and Water Conservation,2024,31(01):199-206.[doi:10.13869/j.cnki.rswc.2024.01.006]
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 01
Page number:
199-206
Column:
Public date:
2024-02-20
- Title:
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Influence of Populus Simonii Planted Forest Density on Understory in Naiman Banner of the Horqin Sandy Land
- Author(s):
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Guo Xinyu1, Yang Guang1, Lu Naijing1, Li Qingyuan2, Qin Zhong2, Ning Yanyan3
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(1.Key Laboratory of Desert Ecosystem Conservation and Restoration, State Forestry and Grassland Administration, College of Desert Science and Engineering, Inner Mongolia Agricultural University, Hohhot 010018, China; 2.Inner Mongolia Hydrology and Water Resources Center Hohhot Hydrology and Water Resources Sub-Center, Hohhot 010010, China; 3.Inner Mongolia Tongliao City Naiman Banner State Owned Machinery Forest Farm, Tongliao, Inner Mongolia 028312, China)
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- Keywords:
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Horqin Sandy Land; afforestation density; plantation protection forest; understory vegetation; species diversity
- CLC:
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S775,Q948
- DOI:
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10.13869/j.cnki.rswc.2024.01.006
- Abstract:
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[Objective] In order to explore the influence of afforestation density of Populus simonii shelterforest in the Naiman Banner Sand area of the southern margin of the Horqin Sandy Land on the vegetation under the forest, the afforestation density suitable for the restoration and stable development of vegetation community diversity was proposed. [Methods] The shelter forest of Populus poplar with similar forest age(867~1 022 plants/hm2,1 444~1 667 plants/hm2, 2 177~2 322 plants/hm2)was taken as the research objects. The survey of each wood ruler, species composition and diversity, vegetation community structure was carried out, and the collected data in the field were statistically analyzed. [Results] Afforestation can significantly improve the rate of vegetation recovery and succession. The size of afforestation density has a significant impact on understory vegetation diversity and community stability. With the decrease of afforestation density, understory herbaceous biomass, species composition richness, species diversity index increase, plant recovery degree and community stability increase. There is a significant negative correlation between afforestation density and vegetation characteristics such as species diversity index, species number, understory vegetation cover, and understory herbaceous biomass(p<0.01). [Conclusion] The plantation with density of 867~1 022 plants/hm2 has the highest community similarity with the uncultivated grassland site. The vegetation community gradually succeeds towards zonal climax vegetation.