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作 者 ：梁宏温,黄承标,胡承彪

期 刊 ：生态学报 1993年 13卷 3期 页码：235~242

关键词：人工林；凋落物；土壤肥力；广西宜山；

Keywords:planted forest, litter-fall, soil fertility, Guangxi.,

摘 要 ：根据1984—1989年的定位观测,广四宜山县庆远林场27—32龄马尾松纯林、23—28龄柠檬桉与马尾松混交林和40—45龄麻栎林的年平均凋落物总量分别为548.3、511.8和479.5g/m~2。通过凋落物归还土壤的营养元素(N、P、K、Ca、Mg、Mn、Cu、Zn)总量依次为0.59278、0.78789和1.14750g/m~2·a。土壤肥力测试表明,桉松混交林和麻栎林的土壤旱季含水量、孔隙度、养分含量、微生物数量及呼吸作用强度均高于马尾松纯林。

Abstract:Based on the stationary observations from 1984 to 1989 at the Qingyuan forest farm of Yishan county,Guangxi,the amount of litterfall of 27-32 years masson pine plantation,23-28 years mixed plantation of Eucalyptus citriodora with masson pine and 40-45 years Quer-cus acutissima plantation was 548. 3,511. 8 and 479. 5g · m 2· a-1, respectively. Total amount of the nutrient elements(N,P,K,Ca,Mg,Mn,Cu ,Zn)of the litterfall returning to the soil was 0. 59278,0. 78789 and 1. 14750 g · m 2 · a-1, respectively. Soi...

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