[1]Zhao Min,Dai Quanhou,Yan Youjin,et al.Litter and Soil Hydrological Effects of Typical Vegetation Types in Karst Mountains[J].Research of Soil and Water Conservation,2024,31(01):241-249.[doi:10.13869/j.cnki.rswc.2024.01.032]
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Litter and Soil Hydrological Effects of Typical Vegetation Types in Karst Mountains
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
31
Number of periods:
2024 01
Page number:
241-249
Column:
Public date:
2024-02-20
- Title:
- Litter and Soil Hydrological Effects of Typical Vegetation Types in Karst Mountains
- CLC:
- S715
- DOI:
- 10.13869/j.cnki.rswc.2024.01.032
- Abstract:
- [Objective] It is of great significance to study the litter and soil hydrological effects of typical vegetation types in karst mountain areas for vegetation restoration in this area. [Methods] This study combined field investigation and indoor analysis, five typical vegetation types including karst mountain grassland, grass shrub complex, shrub, arbor shrub complex and arbor forest were selected to explore the characteristics of litter and soil hydrological effects under different vegetation types. [Results](1)The litter volume of the five typical vegetation types were 3.57 t/hm2 in arbor shrub composite forest, 3.00 t/hm2 in arbor forest, 2.18 t/hm2 in grass shrub composite forest), 1.94 t/hm2 in shrub, 1.8 t/hm2 in grassland. The vegetation type and the decomposition degree of litter were significantly correlated with the litter volume(p<0.01). The effective interception amount and maximum interception amount of litter were the highest in arbor forest, the second in arbor shrub composite forest and grassland, and both decreased with the increase of decomposition degree, which were significantly correlated with vegetation type and decomposition degree, respectively(p<0.01).(2)The natural water content, maximum water holding capacity, capillary water holding capacity and minimum water holding capacity of soil were higher in arbor forest and arbor shrub composite forest, and smaller in grassland. The vegetation type had a very significant impact on each soil water holding index(p=0).(3)Litter holding capacity could improve soil texture and porosity by affecting soil bulk density, and improve soil hydrological effect. [Conclusion] Combined with the difficulty of vegetation restoration in karst area, the use of arbor and shrub vegetation for vegetation restoration can better improve the hydrological conditions of litter and soil, and improve the benefits of vegetation restoration.
- References:
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Last Update:
2024-02-20