七坪林场常绿阔叶林凋落物研究初报

生态学杂志 ›› 1991, Vol. ›› Issue (5): 23-26,49.

七坪林场常绿阔叶林凋落物研究初报

梁宏温¹, 黎洁娟²

1. 广西农学院林学分院, 南宁 530001;
2. 岑溪县七坪林场

收稿日期:1990-01-03 修回日期:1990-03-21 出版日期:1991-10-10

Preliminary Study on Litterfalls of Evergreen Broadleaved Forest in Qiping Forest Farm of Guangxi

Liang Hongwen¹, Li Jiejuan²

1. Forestry Branch of Guangxi Agricultural College, Nanning 530001;
2. Qiping Forest Farm of Chenxi County, Guangxi

Received:1990-01-03 Revised:1990-03-21 Online:1991-10-10

摘要/Abstract

关键词: 生物土壤结皮, 土壤结构, 水稳定性, 藓结皮, 藻结皮

Abstract: The evergrean breadleaved forest in Qiping forest farm is a secondary south subtropical forest dominated by Schima supcrba. This paper focuses on the quantitative dynamics, composition and main chemical components of litterfalls:(1)the annual total amount of litterfalls is 8.385t.ha^-1, and the percentages of leaves, twigs and fruits-flowers are 51.75%, 26.11% and 22.14% respectiveIy.(2)the annual quantitative variation of litterfall is unobvious compared with seasonal variations, which is highest in March.(3)the ratio of total ash amount(290.34kg.ha^-1)to nitrogen amount(98.98kg穐a^-1)is 2.93:1, indicating the litterfalls of this forest belong to N-rich type.(4)the total amount of nine mineral elements in litterfalls is 128.5Sky.ha^-1, from maximum to minimum, their sequence is K>Ca>Mg>S>Mn>P>Fe>Zn>Cu.

Key words: biological soil crust, soil structure, water stability, moss-dominated crust, cyanobacteria- dominated crust

梁宏温, 黎洁娟. 七坪林场常绿阔叶林凋落物研究初报[J]. 生态学杂志, 1991, (5): 23-26,49.

Liang Hongwen, Li Jiejuan. Preliminary Study on Litterfalls of Evergreen Broadleaved Forest in Qiping Forest Farm of Guangxi[J]. cje, 1991, (5): 23-26,49.

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