海南橡胶树混交林土壤微生物功能研究  

Study on the Soil Microbial Function of Rubber Tree Mixed Forest in Hainan

作　　者：李子敏[1] 全飞 兰国玉[2,3,4] 吴志祥 祁栋灵[2,3,4] 李海健 LI Zimin;QUAN Fei;LAN Guoyu;WU Zhixiang;Qi Dongling;LI Haijian(Wenchang Rubber Research Institute,Hainan Academy of Agricultural Reclamation Sciences,Wenchang,Hainan 571347,China;Rubber Research Institute,Chinese Academy of Tropical Agricultural Sciences,Haikou,Hainan 571101,China;Danzhou Investigation&Experiment Station of Tropical Crops,Ministry of Agriculture and Rural Affairs,Haikou,Hainan 571737,China;Key Laboratory of Biology and Genetic Resources of Rubber Tree,Ministry of Agriculture and Rural Affairs,P.R.China,Haikou,Hainan 571101,China;Institute of Tropical Agricultural and Forestry,Hainan University,Haikou,Hainan 570228,China)

机构地区：[1]海南省农垦科学院文昌橡胶研究所,海南文昌571347 [2]中国热带农业科学院橡胶研究所,海南海口571101 [3]农业农村部儋州热带作物科学观测试验站,海南儋州571737 [4]农业农村部橡胶树生物学与遗传资源利用重点实验室,海南海口571101 [5]海南大学热带农林学院,海南海口570228

出　　处：《热带农业科学》2020年第12期73-79,共7页Chinese Journal of Tropical Agriculture

基　　金：国家自然科学基金(No.31770661);海南省重点研发项目(No.ZDYF2019145)。

摘　　要：为了探讨橡胶树混交林对橡胶树土壤微生物功能的影响,对海南文昌种植的单一橡胶林(CK)、橡胶树和‘米老排’混交(处理1)、橡胶树和‘火力楠’混交(处理2)的土壤微生物生物功能进行研究,测定土壤理化性质、养分和微生物生物功能,分析3种种植模式下林地表层土壤(0~10、10~20、20~30 cm)微生物功能。结果表明:硝化作用、固氮作用和氨化作用与不同土壤深度无显著差异;不同种植模式的硝化作用、固氮作用和氨化作用也无显著差异;3种种植模式下,混交林的呼吸作用和纤维素分解作用强度高于CK,说明不同的植被类型对土壤微生物功能有显著影响;呼吸作用与含水率存在显著负相关关系,说明土壤理化性质对土壤微生物功能有显著影响。In order to explore the effect of rubber tree mixed forest on the soil microbial biological function of rubber tree,the soil microbial biological function of single rubber forest,rubber tree and Phoebe hybrid forest,rubber tree and rice old row mixed forest planted in Wenchang,Hainan was studied,the soil physical and chemical properties,nutrients and microbial biological function were measured,and the forest surface soil(0~10,10~20,20~30 cm)microbial micro biological function.The results showed that there was no significant difference in nitrification,nitrogen fixation and ammoniation with different soil depths,and there was no significant difference in nitrification,nitrogen fixation and ammoniation with different planting modes.Under the three planting modes,the intensity of respiration and cellulose decomposition of mixed forest was higher than that of single planting rubber forest,indicating that different vegetation types had significant impact on soil microbial function.There was a significant negative correlation between respiration and water content,indicating that soil physical and chemical properties had a significant impact on soil microbial function.

关 键 词：橡胶 混交林 土壤微生物 生物功能 

分 类 号：S154.1[农业科学—土壤学]