Water holding characteristics of the litter under six kinds of forest beside Songhua river
Through field investigation and room experiment, the litter amount, water holding capacity and water holding speed of the litter under six kinds of forest beside Songhua river was studied. The forest order of the Litter amount from high to low was Pinus koraiensis plantation, Fraxinus mandshurica- Larix olgensis forest, Tilia mandshurica Forest, Quercus monglica forest, Fraxinus mandshurica-Populusdavidiana forest and Juglans mandshurica forest. The maximum water holding rate of the litter changed greatly in different forest, the highest is 321.2％ in Juglans mandshurica forest, and the lowerst is 183.3％ in Fraxinus mandshurica- Larix olgensis forest. The biggest maximum water holding amount of the litter is 161.6 t/hm2 in Pinus koraiensis plantation, while the smallest maximum water holding amount of the litter is 50.8 t/hm2 in Juglans mandshurica forest. The water absorption speed changed inverselly with time, and the highest speed took place during the first 15 minute. Absorption speed of the halfdecomposion litter layer under conifer forest and coniferbroadleave mixed forest was bigger than that of broadleave forest.
Songhua river litter water holding capacity
Shuh Wang Tianran Hu
Northeast Forestry University Harbin, China
国际会议
吉林
英文
341-344
2011-11-04（万方平台首次上网日期，不代表论文的发表时间）