安徽农业大学学报2017，Vol.44Issue(3)：422-428,7.DOI:10.13610/j.cnki.1672-352x.20170524.029
西双版纳橡胶林、澳洲坚果林凋落物动态
Litter dynamics of rubber plantation and macadamia plantation in Xishuangbanna
摘要
Abstract
In a middle age (about 10 years) plantation,an elderly (more than 30 years) rubber plantation and a macadamia plantation in rich phase (about 15 years),a three-year consecutive investigation was conducted on monthly litter dynamics,seasonal change of litter composition and influencing factors.The results showed that the total amount of litter in the middle age rubber plantation (4.76 ± 0.80) t·hm-2·a-1 was obviously lower than that in the elderly rubber plantation (7.80 ± 1.12) t·hm2·a-1 (t =5.608,P ＜ 0.05),while in the macadamia plantation (7.00 + 2.45) t·hm2·a-1 it was approximate to the elderly rubber plantation (t =0.603,P =0.608).All the three plantations showed the litter rhythm with a ”double litter peak” feature,but the time of peak occurrence was different.The composition ratio of litter varied among the three plantations.The litter pattern in rubber plantation was mainly determined by the litter amount of leaf and branch,while in macadamia plantation it was also greatly affected by the litter amount of fruits and flowers.Although the internal traits of plants itself (species,age and variety) directly affect litter dynamics,some meteorological conditions (sunshine,temperature and humidity) are also important factors influencing litter amount and composition.This study could provide basic data for the further exploration of litter decomposition and nutrient cycling in rubber plantation,and may help deeply understand the structure and function of rubber forest ecosystems.关键词
橡胶林/澳洲坚果林/凋落物动态Key words
robber plantation/macadamia plantation/litter dynamics分类
农业科技引用本文复制引用
周会平,魏丽萍,谢江,陈国云,徐睿..西双版纳橡胶林、澳洲坚果林凋落物动态[J].安徽农业大学学报,2017,44(3):422-428,7.基金项目
云南省热带作物科技创新体系建设专项(RF2016)和云南省两类人才项目(2014HB095)共同资助. （RF2016）
