[1]GAO Kai-tong,HU Shu-ping,LIU Peng-ju,et al.Hydrological Effects of Typical Forest Litters in Beijing Jiulongshan Nature Reserve[J].Research of Soil and Water Conservation,2013,20(05):160-164,169.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
20
Number of periods:
2013 05
Page number:
160-164,169
Column:
Public date:
2013-10-28
- Title:
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Hydrological Effects of Typical Forest Litters in Beijing Jiulongshan Nature Reserve
- Author(s):
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GAO Kai-tong, HU Shu-ping, LIU Peng-ju, TANG Xiao-ming
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Research Institute of Forest Resource Information Techniques, Chinese Academy of Forestry, Beijing 100091, China
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- Keywords:
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hydrological effect; forest litters; proportion of water holding capacity; water absorption rate
- CLC:
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S715.7
- DOI:
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- Abstract:
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Four types of representative forests at the Jiulongshan Nature Reserve were selected to investigate the forest stock volume and water-holding capacity of litter layers, to provide reference for forest litter’s eco-hydrological function evaluation in this area. The results showed: (1) the order of the total storage capacity of four stand litters showed mixed forest of Continus coggygria and Pinus tabulaeformis(29.65 t/hm2) > Continus coggygria forests(22.78 t/hm2) > mixed forest of Continus coggygria and Platycladus orientalis(16.87 t/hm2) > artificial Platycladus orientalis forests(12.17 t/hm2); (2) under the same soaking time, mixed forest of Continus coggygria and Pinus tabulaeformis’ water holdings capacity of litters is the largest, followed by Continus coggygria forests, mixed forest of Continus coggygria and Platycladus orientalis, artificial Platycladus orientalis forests, the relationship between water holding capacity and soaking time is described by the equation of Q=aln(t)+b, the lasting process of water holding capacity showed four stages as rapid water absorption, slow absorption, gradual saturation, saturated;(3) the relationship between absorption rate and immersion time can be described by the equation of V=ktn, the process can be divided into rapid decline, slow decline, tends to be stable three stages.