[1]XU Xiaoming,YI Haijie,HE Liang,et al.Research Advances on Water and Soil Conservation Effects of Forest Litter Layer on the Loess Plateau[J].Research of Soil and Water Conservation,2022,29(04):415-421.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
29
Number of periods:
2022 04
Page number:
415-421
Column:
Public date:
2022-06-20
- Title:
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Research Advances on Water and Soil Conservation Effects of Forest Litter Layer on the Loess Plateau
- Author(s):
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XU Xiaoming1, YI Haijie2, HE Liang1, LÜ Du2, HE Jie1, ZOU Yadong1, WANG Haojia1, XUE Fan1, TIAN Qilong2, WANG Miaoqian1, ZHANG Xiaoping
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(1.State Key Laboratory of Soil Erosion and Dryland Farming on the Loess Plateau, Institute of Soil and Water Conservation, Northwest A&F University, Yangling, Shaanxi 712100, China; 2.Institute of Soil and Water Conservation, CAS & MWR, Yangling, Shaanxi 712100, China)
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- Keywords:
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forestlands; litter layer; soil and water conservation effects; Loess Plateau
- CLC:
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S714
- DOI:
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- Abstract:
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Litter is an important layer involved in the hydrological cycle process in the vertical structure of forestlands, and plays an indispensable role in water retention and soil conservation. After 20 years of rapid vegetation restoration on the Chinese Loess Plateau, litter coverage in forestlands has caused significant changes in vegetation characteristics and ecological processes on the near surface, which will certainly affect the hydrological and soil erosion processes such as soil infiltration, surface runoff and confluence. In order to comprehensively grasp the dynamics of soil and water conservation effects of litter layer in forestlands on the Loess Plateau, we systematically reviewed the research progress of litter layer in forestlands in terms of the litter dynamics, accumulation changes, rainfall interception, surface runoff interception, soil erosion resistance and soil infiltration. Some existing problems in the current studies on litter layer in forestlands on the Loess Plateau were analyzed objectively. In the future, the long-term in-situ monitoring and rainfall experiments on field slopes should be strengthened, and multi-landform as well as multi-scale dynamic studies should be carried out. In addition, we are supposed to pay attention to the comparative studies on the eco-hydrological functions of litter layer in natural forests and artificial forests, and establish hydro-physical process models and determine the relevant key parameters, as well as enhance the protection and supervision of litter layer in forestlands.