文献类型：期刊文献

英文题名：Response of Functional Diversity of Soil Microbial Community to Forest Cutting and Regeneration Methodology in a Chinese Fir Plantation

作者：Wang, Xu[1] Gao, Shenghua[1] Chen, Jiquan[2] Yao, Zengwang[1] Zhang, Lei[1] Wu, Hailong[1] Shu, Qi[1] Zhang, Xudong[1]

通信作者：Zhang, XD[1]

机构：[1]Chinese Acad Forestry, Res Inst Forestry, Beijing 100091, Peoples R China;[2]Michigan State Univ, Ctr Global Change & Earth Observat CGCEO, Dept Geog Environm & Spatial Sci, E Lansing, MI 48823 USA

年份：2022

卷号：13

期号：2

外文期刊名：FORESTS

收录：;EI(收录号：20220911728125);Scopus(收录号：2-s2.0-85125355152);WOS:【SCI-EXPANDED(收录号:WOS:000850426500001)】；

基金：This research was funded by the National Key Research and Development Project, grant number 2017YFC050550204.

语种：英文

外文关键词：Chinese fir plantation; harvest residues; microbial functional diversity; soil nutrients; biolog microplate technology

摘要：With the expansion of pure forest planting area and the increase in the number of rotations used, soil activity and plant productivity have significantly reduced. The functional diversity of soil microorganisms plays a vital role in forest health and the long-term maintenance of productivity. Though the optimization of forest cutting and regeneration methodologies is necessary to improve the functional diversity of soil microorganisms, the effects of harvest residual treatment on the functional diversity of soil microorganisms remain unclear. During the period 2018-2020, we designed four harvest residual treatments-reference (RF), residual burning (RB), crushing and mulching (MT), and no residuals (NR)-to determine soil physical and chemical properties. We also used microbial biomass (MB) to evaluate the diversity in carbon source metabolism of soil microorganisms through Biolog microplate technology, and discussed the response mechanism of microbial functional diversity to the different forest cutting and regeneration methodologies used in Chinese fir plantations. The results indicated that RB significantly increased the carbon metabolic capacity of the microbial community, the community richness, and its dominance compared to RF, MT, and NR; however, they also showed that it decreased the uniformity of the soil microbial community. NR showed a poor carbon utilization capacity for microorganisms compared to RF and MT, while MT significantly increased the utilization capacity of carbohydrate and amino acid carbon compared with RF. Soil nutrients were the main driving factors of soil microbial carbon metabolic activity, and the different responses of microbial functional diversity to various forest cutting and regeneration methodologies were mainly due to the variation in the nutrient inputs of harvest residues. This study provides a practical basis for enhancing the functional diversity of soil microorganisms in plantations through the management of harvest residues.