[1]ZHANG Jian-li,YAN Ling-bin,YU Li-fei,et al.Research for Leaf-Litter Hydrographic Effect in the Decomposition Process of Three Dominant Tree Species in the Caohai Wetland Watershed[J].Research of Soil and Water Conservation,2014,21(06):61-66.
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Research for Leaf-Litter Hydrographic Effect in the Decomposition Process of Three Dominant Tree Species in the Caohai Wetland Watershed
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 06
Page number:
61-66
Column:
Public date:
2014-12-28
- Title:
- Research for Leaf-Litter Hydrographic Effect in the Decomposition Process of Three Dominant Tree Species in the Caohai Wetland Watershed
- CLC:
- S718.5;Q948
- DOI:
- -
- Abstract:
- The method of leaf litter decomposition bag was used to study natural water-holding rate, maximum water holding rate, maximum interception rate，modified interception rate & holding water trait etc of leaf litter in decomposition process, dominant plant species Cyclobalanopsis glauca, Alnus cremastogyne & Pinus yunnanensi in Caohai wetland watershed forest were selected as the research examples. The result showed that: (1) the leaf litter natural water-holding rate first increased and then decreased with the decomposition time extension. The leaf litter lnatural water-holding rate was highly significantly different in the decomposition process; (2) the leaf litter water-holding rate (Rt) & immersion time (t) showed a significant positive correlation, the regression analysis for leaf litter water-holding rate (Rt) & immersion time (t) followed the function equation Rt=a+blnt. The leaf litter water absorption rate (v) & immersion time (t) showed a significantly negative correlation, the regression analysis for the leaf litter’s water absorption rate (v) vs immersion time (t) can be described by the equation, v= at-b; (3) the leaf litter maximum interception rate，modified interception rate gradually increased with the decomposition time duration.
- References:
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1900-01-01