期刊论文

Impacts of converting natural secondary forests to exotic Eucalyptus plantations on structure and function of soil microbial communities

Zheng, H.

中文

生态学报

1000-0933

2018

38

22

8070-8079

10.5846/stxb201801060036

41501325:国家自然科学基金 41761067:国家自然科学基金 41401329:国家自然科学基金

本校为第一机构

由于桉树对原生生态系统具有潜在的破坏性影响,随着桉树人工林面积的不断扩大,桉树种植对森林生态系统的影响越来越受到社会的关注。围绕引进种桉树造林对土壤微生物群落的影响,应用成对试验设计,采用磷脂脂肪酸(PLFA)和BIOLOG微平板培养等技术手段探讨土壤微生物群落结构和功能如何响应桉树人工林取代天然次生林这一变化,主要结果为:桉树人工林取代天然次生林导致:(1)土壤微生物生物量减少,包括:生物量碳、氮和磷脂脂肪酸丰度显著下降;(2)反映土壤微生物群落生理胁迫状况的指标:饱和直链脂肪酸/单不饱和脂肪酸、革兰氏阳性菌/革兰氏阴性菌、支链异构/反异构脂肪酸以及cy19:0/18:1ω7c的比值显著...

Extensive afforestation with exotic species has caused broad concern due to its potential impacts on ecosystems. Eucalyptus is one of the main introduced tree species in China. Understanding the impacts of afforestation with Eucalyptus on the structure and function of soil microbial communities plays a key role elucidating the impacts of a single species on ecosystem services and implementing the scientific management in Eucalyptus plantations. Paired comparison (i.e. natural secondary forests and Eucalyptus plantations) test was used to evalua...