当前位置: X-MOL 学术Limnology › 论文详情
Our official English website, www.x-mol.net, welcomes your feedback! (Note: you will need to create a separate account there.)
Identifying microbial drivers promoting plant growth on soil amended with composted aquatic plant: insight into nutrient transfer from aquatic to terrestrial systems
Limnology ( IF 1.6 ) Pub Date : 2020-03-28 , DOI: 10.1007/s10201-020-00613-3
Shunsuke Matsuoka , Yuki Kobayashi , Satoru Hobara , Takashi Osono

Effects of applying composted aquatic plants on soil chemistry, soil microbes (fungi and bacteria), and the growth of cultivated plant were demonstrated. To identify drivers promoting cultivated plant growth on soil amended with composted aquatic plant, empirical data of pot experiments were incorporated into structural equation models by hypothesizing causal relationships between the application of composted aquatic plants, soil chemistry, soil microbes, and cultivated plant growth. Cultivated plant growth, total carbon content, and bacterial and fungal richness in soil increased on soil applied with composted aquatic plants, and the composition of bacterial and fungal assemblages in soil were significantly different among the application treatments. Structural equation models explicitly demonstrated the relative importance of bacterial assemblages compared to soil chemistry as a promoter of cultivated plant growth in response to the application of composted aquatic plants. The present study is the first to demonstrate that the positive effects of composted aquatic plants on terrestrial plant growth are mediated by soil microbial processes. Our results could provide basic insights into the transfer and cycling of nutrients from aquatic to terrestrial systems through human activities.

中文翻译:

确定用堆肥水生植物改良的土壤中促进植物生长的微生物驱动力:洞悉养分从水生系统向陆生系统的转移

证明了施用堆肥水生植物对土壤化学,土壤微生物(真菌和细菌)以及栽培植物生长的影响。为了确定促进堆肥水生植物改良的土壤上栽培植物生长的驱动因素,通过假设堆肥水生植物的应用,土壤化学,土壤微生物和栽培植物生长之间的因果关系,将盆栽实验的经验数据纳入结构方程模型。堆肥水生植物在土壤中的栽培植物生长,总碳含量以及土壤中细菌和真菌的富集度增加,并且在施用处理之间,土壤中的细菌和真菌组合物的组成也存在显着差异。结构方程模型明确表明,与土壤化学相比,细菌组合相对于堆肥水生植物的应用可作为栽培植物生长的促进剂。本研究是第一个证明堆肥水生植物对陆生植物生长的积极影响是由土壤微生物过程介导的。我们的研究结果可以为人类通过活动将营养物从水生系统转移到陆地系统提供基础见解。
更新日期:2020-03-28
down
wechat
bug