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| Soil hydrological properties of four forest types around Jinbo Lake |
| Wang Shuli,Yang Zhen,Yuan Weibin |
| Northeast Forestry University,150040,Harbin,China |
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Abstract Through field investigation and experiment analysis,the soil hydrological properties of virgin Pinus koraiensis forest,Populus davidiana-Betula platyphylla forest,Quercus mongolica forest and Pinus koraiensis plantation were studied.It is shown that: 1) The total litter stock of four forest types ranges from 22.32 to 34.15 t·hm-2,of which the decline order is virgin Pinus koraiensis forest,Pinus koraiensis plantation,Populus davidiana-Betula platyphylla forest and Quercus mongolica forest.The decline order of the maximal water-holding rate,maximal water-holding amount and the modified interception is virgin Pinus koraiensis forest,Pinus koraiensis plantation,Populus davidiana-Betula platyphylla forest and Quercus mongolica forest;2) The decline order of water absorption speed of the litter is virgin Pinus koraiensis forest,Populus davidiana-Betula platyphylla forest,Quercus mongolica forest and Pinus koraiensis plantation;3) Both the decline order of the maximal water-holding capacity and the field water-holding capacity is Populus davidiana-Betula platyphylla forest,virgin Pinus koraiensis forest,Quercus mongolica forest and Pinus koraiensis plantation;4) The decline order of soil infiltration ability and raise order of steady infiltration time is Populus davidiana-Betula platyphylla forest,virgin Pinus koraiensis forest,Quercus mongolica forest and Pinus koraiensis plantation;5) Considering from both the water-holding capacity and water absorption of the litter,the water-holding capacity and infiltration characteristics of the soil to evaluate soil hydrological properties of four forest types,virgin Pinus koraiensis forest and Populus davidiana-Betula platyphylla forest are the best,Quercus mongolica forest is the intermediate,Pinus koraiensis plantation is the worst.
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Received: 08 March 2007
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