The development of Chinese fir plantations undergo significant changes in soil microbial metabolic function and enzyme activities

作   者：Chaoqun Wang, Lin Xue, Yuhong Dong, Lingyu Hou, Yihui Wei, Jiaqi Chen, Ruzhen Jiao
期刊名称：Journal of Forest Research
影响因子：0.777
卷 期 号：24(4)
页     码：261-265
关键词：Stand age change drivers; soil properties; forest management; microbial community; Biolog-ECO
论文摘要：
Comprehensive evaluation of soil enzyme activities, microbial community diversity can provide
a theoretical basis for the sustainable management of the plantations. In this study, we analyzed soil
enzyme activities and the metabolic functional diversity of the microbial communities of Chinese fir
plantations aged 3 years, 12 years and 38 years. The results showed that the high-age (38 years old) was
beneficial to soil microbial community diversity. The activities of catalase and urease, the average well
colour development (AWCD) values for carbon sources used by microbial communities and five
diversity indices all showed a gradual increase as trees aged from 3 years to 38 years. Sucrase activity
decreased by 109% from 3- to 12-year-old plantations and increased by 139% from 12- to 38-year-old
plantations. Overall, the stand age is an important factor for driving changes in soil properties of Chinese
fir plantations, and high age may be more conducive to the improvement of soil properties, especially
enzyme activities and microbial community diversity, which is of great significance to the screening of
key indicators for the establishment of precision evaluation technology in Chinese fir sites.