西南林业大学学报Issue(4)：46-52,7.DOI:10.11929/j.issn.2095-1914.2015.04.008
不同林龄无患子人工林枯落物的持水性
Study on Water-Holding Properties of Litter Layer of Sapindus mukorossi Plantation with Different Age Class
摘要
Abstract
By using the methods of field investigation and soaking extraction,the water-holding properties of lit-ter layer of Sapindus mukorossi plantation with different age class were investigated,and the regression relationship be-tween the water-holding properties and soaking time,water uptake rate and soaking time was build.The results showed that:the water-holding properties of litter layer of Sapindus mukorossi plantation with different age class existed signif-icant differences.There was a polynomial regression relationship between the water-holding properties and the age class.The class I of Sapindus mukorossi plantation had the best water-holding properties.The natural water holding ca-pacity,natural water holding rate,the maximum of water-holding content,the maximum of water-holding rate,the big-gest net capacity were all the highest.The water-holding capacity in Sapindus mukorossi plantation with different age class increased in the form of logarithmic functional model with the increase of soaking time,with the correlation coef-ficient from 0.912 4 to 0.919 4.The water-absorption rates of the litters decreased in the form of power function,with the correlation coefficient between 0.986 0 and 0.987 5.The water-absorption rates became lower with the increase of soaking time.The water-absorption rate was 195.25 g/h while soaking in the water for 1 h.It reduced to 109.81 g/h while soaking in the water for 2 h.After 20 h,the water-absorption rates became zero.关键词
无患子/人工林/枯落物/持水性Key words
Sapindus mukorossi/plantation/litter layer/water-holding properties分类
农业科技引用本文复制引用
刘成功,万志兵,李燕,戴淑娟,姜航,王立超,徐胜林..不同林龄无患子人工林枯落物的持水性[J].西南林业大学学报,2015,(4):46-52,7.基金项目
安徽高校省厅自然科学研究重点项目（KJ2013A241）资助；国家级大学生创新训练项目（201310375006）资助；黄山学院自然科学研究项目（2014xkj002）资助。 （）
