西北林学院学报2012，Vol.27Issue(1)：63-69,7.DOI:10.3969/j.issn.1001-7461.2012.01.13
我国森林地表凋落物现存量及养分特征
Standing Crop and Nutrient Characteristics of Forest Floor Litter in China
摘要
Abstract
The variation of litter standing crop, nutrient contents and the methods of examining storage of forest floor litter in China were summarized. Researches of forest littere were mainly concentrated on subtropical forests, covering various forest types, in these regions, little was found on tropical and temperate forests. Litter standing crop increased with the increase of the latitude, and the average values in tropical, subtropical and temperate forest were 4. 62 t ? Hm-2, 28. 44 t ? Hm"z and 68. 90 t ? Hm-2, respectively, and the proportion of L layer increased, F and H layer gradually reduced from tropical to subtropical and temperate forests. In addition, litter standing crop was also influenced by elevation, forest types, forest age, vegetation succession and cutting intensity etc. The order of nutrient contents were the following, organic carbon > nitrogen or calcium > calium or magnesium > phosphorus. Nutrient storage had obvious features in latitudinal zone, increasing gradually from tropical forests to temperate forests. The scopes of nutrient storage were from 68. 7 to 147. 9 kg ? Hm-2, with an average value of 117. 16 kg ? Hm-2 in tropical forests, from 15. 1 to 1 504. 4 kg ? Hm-2 with an average value of 199. 5 kg ? Hm-2 in subtropical forests, from 367. 2 to 1 499. 4 kg ? Hm-2with an average value of 767. 7 kg ? Hm-2 in temperate forests.关键词
地表凋落物/凋落物现存量/养分贮量/研究方法Key words
floor litter/ litter standing crop/ nutrient storage/ research method分类
农业科技引用本文复制引用
郑路,卢立华..我国森林地表凋落物现存量及养分特征[J].西北林学院学报,2012,27(1):63-69,7.基金项目
"十一五"广西林业科技项目(2009-12-2) （2009-12-2）
