江西千烟洲试区木荷阔叶林的水文过程及养分动态研究

编号 zgly0000303428

文献类型 期刊论文

文献题名 江西千烟洲试区木荷阔叶林的水文过程及养分动态研究

学科分类 220.1030;森林水文学

作者 陈永瑞  刘允芬  林耀明  李家永  张宏志 

作者单位 中国科学院地理科学与资源研究所 

母体文献 林业科学 

年卷期 2003,39(4)

页码 145-150

年份 2003 

分类号 S715  S792.99 

关键词 江西  千烟洲试区  木荷人工林  阔叶林  水文过程  养分  水化学  动态规律 

文摘内容 Based on the two-year successive data in the Qianyanzhou Experimental Area collected by small watershed technique and the located observation method, the hydrological process and the dynamics of mineral elements of the rain-fall, throughflow, stemfall, crown interception and surface runoff for artificial Schima superba forest were studied, which was important to understand the dynamics of nutrient input and the function of artificial forest ecosystem in subtropical re-gion. The results showed that the annual input of rainfall to the forest ecosystem was 1 388.75 mm, of which the input of throughflow, stemfall, crown interception and surface runoff were 1 099.40, 27.44,261.93 mm and 44.48 mm respective-ly, occupying 79.2%, 2%, 18.8% and 3.2% of the total input of rainfall. The total input nutrient of elements such as N, P, K, Ca, Mg, Fe, Mn, Sr, Zr, Na, Si and Ti dissolved in the rainfall was 349.86 kg·hm^-2 a-1 , and the output of the nutrient was 72.929 kg·hm^-2 a-1, which indicated that the net nutrient accumulation in the forest ecosystem was 276.942 kg· hm^-2 a -1 。