摘要
以太湖流域重要水源地安吉赋石水库为试验点,探究3种毛竹复合系统微生物群落组成的差异,以及对土壤质量的影响。结果显示:土壤微生物群落多样性随植被优势种不同而变化。毛竹纯林的细菌Alpha多样性高于其他两个,而真菌Alpha多样性则低于其他两个林分。同样,不同毛竹复合系统的土壤微生物Beta多样性也存在显著差异。优化毛竹复合系统能够有效提高土壤质量。与毛竹纯林(P2样地)相比,毛竹复合系统(P3和P5样地)的土壤全碳含量分别增加了130.20%和11.19%,土壤全氮含量分别增加了98.36%和7.65%,土壤有效磷含量分别增加了155.64%和149.62%。研究表明,不同毛竹复合系统能够引起土壤中微生物群落的变化,进而影响土壤化学循环,提高碳氮磷含量,改善土壤质量。因此,在水源地构建结构良好的森林复合系统能够有效提高土壤质量,减少水土流失。
In this study, the Anji Fushi reservoir catchment was the test site to explore the differences in the structure of microbial communities under different vegetation covers. The diversity of soil microbial community varied with the composition of dominant vegetation species. The bacterial alpha diversity of in the pure bamboo forest was higher than that of the other two plots, while the fungal alpha diversity was lower than that of the other two plots. There were notable differences in soil microbial beta diversity in different bamboo complex systems. The establishment of a bamboo composite system can effectively improve soil quality. Compared with the pure bamboo forest(P2 plot), the total soil carbon content of the bamboo complex systems(P3 and P5 plots) increased by 130.20% and 11.19%, respectively, while the soil total nitrogen content increased by 98.36% and 7.65%, respectively, and soil available phosphorus content increased by 155.64% and 149.62%, respectively. The findings clearly indicated that bamboo complex systems can lead to changes in soil microbial communities, which in turn affects the soil chemical cycle and improves soil quality in terms of carbon, nitrogen, and phosphorus content. Thus, building a well-structured bamboo forest system in water sources can effectively improve soil quality.
作者
王荣嘉
寿松涛
张慧萍
孙士咏
张建锋
WANG Rongjia;SHOU Songtao;ZHANG Huiping;SUN Shiyong;ZHANG Jianfeng(Institute of Subtropical Forestry,Chinese Academy of Forestry,Hangzhou,Zhejiang 311400,China;Fuyang Department of Agriculture and Rural Affairs,Hangzhou,Zhejiang 311400,China;College of Civil Engineering and Architecture,Xinxiang University,Xinxiang,Henan 453003,China)
出处
《森林与环境学报》
CSCD
北大核心
2022年第6期648-654,共7页
Journal of Forest and Environment
基金
中央级公益性科研院所基本科研业务费专项基金项目“水源区土壤氮、磷局地迁移与调控机理”(CAFYBB2019SY014)。
关键词
毛竹复合系统
水源地
土壤微生物
群落多样性
bamboo complex systems
water source area
soil microorganisms
community diversity
