杉木人工复层林土壤理化性质变化的初步研究  

Study on variation of the properties of soil in multi-storied Chinese fir plantation

作　　者：熊皓波 

机构地区：[1]建瓯市林业技术推广中心,福建建瓯353100

出　　处：《亚热带农业研究》2008年第4期283-286,共4页Subtropical Agriculture Research

基　　金：福建省科技厅重点项目(2000Z084)

摘　　要：研究在杉木人工林中套种阔叶树形成复层林后林地土壤理化性质的变化。结果表明:杉木人工林套种阔叶树形成复层林后,土壤的容重降低,在0-20 cm土层中下降了1.8%-3.3%,而土壤最大持水量、非毛管孔隙度、毛管持水量和最小持水量均增加,其中毛管持水量增加了1.4%-7.6%;土壤有机质含量提高了2.9%-9.4%,全N、全P、水解N和速效K等营养成分含量也均有提高。可见,杉木人工林套种阔叶树后有效地改善了林地土壤的理化性质,维持了林地肥力。By interplanting the broad-leaved under the grown of Chinese fir （ Cunninghamia laceolata Hook） plantations, the variation of properties of soil in the multi - storied were studied. After the Chinese fir pure plantation became the multi-storied, the properties of soil turn better. While the capillary porosity decreased in the range from 1.8 to 3.3 percentage, the soil maximum moisture capacity, non-capillary porosity, capillary moisture-holding capacity and minimum moisture capacity all increased. The capillary moisture-holding capacity increased in the range from 1.4 to 7.6 percentage, the soil organic matter increased in the range from 2.9 to 9.4 percentage, and the total N, total P, hydrolysis N and available K also increased. Therefore, the fertility of soil was effectively maintained.

关 键 词：杉木 阔叶树 复层林 土壤理化性质 

分 类 号：S714.2[农业科学—林学]