Water Holding Characteristics of Litter Layer after Natural Evergreen Broadleaved Forest Artificial Regeneration in Southern Sichuan Province
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Water Holding Characteristics of Litter Layer after Natural Evergreen Broadleaved Forest Artificial Regeneration in Southern Sichuan Province
Vol. 20, Issue 3, Pages: 51-55(2006)
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CLC:S715.7S718.56
Published:2006
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GONG Wei, HU Ting-xing, WANG Jing-yan, et al. Water Holding Characteristics of Litter Layer after Natural Evergreen Broadleaved Forest Artificial Regeneration in Southern Sichuan Province[J]. 2006, 20(3): 51-55.
DOI:
GONG Wei, HU Ting-xing, WANG Jing-yan, et al. Water Holding Characteristics of Litter Layer after Natural Evergreen Broadleaved Forest Artificial Regeneration in Southern Sichuan Province[J]. 2006, 20(3): 51-55.DOI:
Water Holding Characteristics of Litter Layer after Natural Evergreen Broadleaved Forest Artificial Regeneration in Southern Sichuan Province
natural water content and water holding characteristics of litter layer under the natural evergreen broadleaved forest and three artificial plantations
Sassafras tzumu
Cryptomeria fortunei and Metasequoia glyptostroboides forests
which formed by natural evergreen broadleaved forest artificial regeneration.The results showed that the amount of litter layer is natural evergreen broadleaved forest(25.68 t/hm~2)>Metasequoia glyptostroboides forest(18.14 t/hm~2)>Sassafras tzumu forest(9.95 t/hm~2)>Cryptomeria fortunei forest(1.13 t/hm~2).The natural water content of whole litter layer in natural evergreen broadleaved forest is 3.18
41.33
1.53 times of that in Sassafras tzumu
Cryptomeria fortunei and Metasequoia glyptostroboides forests
respectively.During the process of water holding of litter layer
the water holding capacity and absorption speed of the first 2 h were superior to the rest of time.The equation between the water holing capacity of the litter layer and the immerse time is Q=alnt b
the equation between the water absorption speed of the litter layer and the immerse time is V=kt~n.The maximum water holding capacity
the maximum interception and the modified interception of litter layer are natural evergreen broadleaved forest>Metasequoia glyptostroboides forest>Sassafras tzumu forest>Cryptomeria fortunei forest.Therefore
protecting natural evergreen broadleaved forest and choose appropriate afforestation tree for artificial regeneration of natural evergreen broadleaved forest were important for enhancing the eco-hydrological benefits of forest litter layer.