摘要
调查分析了武夷山不同类型毛竹林的土壤水分物理性质状况。结果表明,不同类型毛竹林的土壤容重大小为对照地〉竹杉林〉竹阔林〉毛竹纯林;土壤总孔隙度大小为毛竹纯林〉竹阔林〉竹杉林〉对照地;各林地土壤最大持水量、毛管持水量大小为毛竹纯林〉竹阔林〉竹杉林〉对照;最小持水量大小为毛竹纯林〉竹杉林〉竹阔林〉对照;三项持水量依次是对照值的1.04-1.19倍、1.06-1.14倍、1.09-1.14倍。毛竹林分在0-60 cm土壤层的质地较为疏松,孔隙增多,透气性好,有利于水分的运输与贮存,适宜毛竹鞭根生长,因此,科学合理地经营毛竹林分,避免过度人为干扰可有效改善林分的水分物理状况,促进竹林丰产。
Soil moisture physical properties of different Phyllostachys heterocycla mixed forest in Wuyi Mountain were studied.Result shows that: the size of soil bulk density of different Phyllostachys heterocycla mixed forest is:CK plotmixed forest of Phyllostachys heterocycla Cunninghamia lanceolatamixed forest of Phyllostachys heterocycla broadleaf tree bamboo pure forest;the size of total soil porosity is :bamboo pure forestmixed forest of Phyllostachys heterocycla broadleaf treemixed forest of Phyllostachys heterocycla Cunninghamia lanceolataCK plot;the size of maximum water holding capacity of the soil capillary water is : bamboo pure forestPhyllostachys heterocycla broadleaf tree mixed forest of Phyllostachys heterocycla Cunninghamia lanceolataCK plot;three items of water holding capacity is 1.04-1.19,1.06-1.14,1.09-1.14 times followed by CK values.Bamboo stand in the 0-60cm soil layer have the characteristics: relatively loose texture,increased porosity,good permeability;it is conducive to the transportation and storage of water suitable for root growth of bamboo whip.Therefore,bamboo stand should be managed scientifically reasonably;avoiding excessive disturbance can effectively improve the physical condition of the water stands promote bamboo yield.
出处
《防护林科技》
2010年第6期13-15,共3页
Protection Forest Science and Technology
关键词
毛竹
竹林类型
林分结构
土壤水分
物理性质
bamboo(Phyllostachys heterocycla)
bamboo forest type
stand structure
soil moisture
physical property