北京林业大学学报2011，Vol.33Issue(4)：40-47,8.
长白山地区不同林型土壤特性及水源涵养功能
Soil characteristics and water conservation of different forest types in Changbai Mountain.
摘要
Abstract
We took a virgin forest, a spruce-fir forest, a polar-birch seeondary forest, 53- and 39- year-old artificial larch in the Jingouling Forest Farm in Changbai Mountain, northeastern China, as study objects, and took grassland as the control. Litter extant quantity, water-storage capacity of litter, soil physical property and water-storage capacity of soil of different forest types were analyzed. Results showed that 1 ） the litter extant quantity of various torest types ranged from 28.96 to 56.42 t/hm2 （ maximum in the virgin forest, minimum in the polar-birch seeondary forest） ; 2） the sequence of maximum water-storage of litter is virgin forest 〉 polar-birch secondary forest 〉 spruce-fir forest 〉 53-year-old artificial larch 〉 39-year-old artificial larch 〉 grassland; 3） soil bulk density increases with the soil depth increasing gradually, and the effect of the power function fitting is best. The bulk density of A1 layer in different forest soil are less than 1. O0 g/era3, obviously less than that of grassland; 4） the total porosity and capillary porosity gradually decrease with soil depth inereasing; 5） natural moisture content gradually decreases with the soil depth increasing and the effeet of the power tunetion fitting is best; 6） the sequenee of maximal soil water-storage and capillary water-storage are virgin torest 〉 spruce-fir forest 〉 polar-birch secondary rorest 〉 39-year-oht artificial larch 〉 53-year-old artificial lareh 〉 grassland, and non-capillary water-storage change is polarbirch secondary forest 〉 spruce-fir forest 〉 39-year-old artificial larch 〉 virgin torest〉 53-year-old artificiallarch 〉 grassland. In short, the water conservation of different forest types is polar-birch secondary forest 〉 spruce-fir forest 〉 virzin forest 〉 39-year-old artificial larch 〉 53-year-old artificial larch 〉 grassland.关键词
森林类型/林地土壤/土壤密度/孔隙度/蓄水量Key words
forest type/forest soil/bulk density/porosity/water-storage分类
农业科技引用本文复制引用
方伟东,亢新刚,赵浩彦,黄新峰,龚直文,高延,冯启祥..长白山地区不同林型土壤特性及水源涵养功能[J].北京林业大学学报,2011,33(4):40-47,8.基金项目
林业公益性行业科研专项（200804027）. （）
