scholarly journals The Impacts of Vegetation Types and Soil Properties on Soil Microbial Activity and Metabolic Diversity in Subtropical Forests

Forests ◽  
2019 ◽  
Vol 10 (6) ◽  
pp. 497
Author(s):  
Danbo Pang ◽  
Genzhu Wang ◽  
Yuguo Liu ◽  
Jianhua Cao ◽  
Long Wan ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Carbon Metabolism ◽  
Secondary Forest ◽  
Karst Area ◽  
Vegetation Types ◽  
Soil Microbial ◽  
Pinus Yunnanensis ◽  
Carbon Substrates ◽  
Karst Areas ◽  
Microbial Carbon

Microbial functional diversity is significantly associated with both nutrient cycling and organic matter decomposition. However, how different forests as well as the soil parent materials influence the soil microbial carbon metabolism remains poorly understood. In this study, a natural secondary forest and a Pinus yunnanensis plantation, with similar climatic conditions under contrasting parent materials (clasolite in the non-karst areas and limestone in the karst areas) in Yunnan Province, China, were investigated. The soil microbial carbon metabolism diversity was assessed by the Biolog® ECO-plates. During the dry season, the soil microbial communities used carbon substrate in secondary forest and Pinus yunnanensis plantation, showing no significant difference, both in non-karst and karst areas. The microbial communities in the non-karst area were more efficient in utilizing carbon substrates than those in the karst area with the same vegetation types, resulting in the higher accumulation of organic carbon in the karst area. The six categories of most frequently utilized carbon substrates were carbohydrates, carboxylic acids, and amino acids in both the non-karst and the karst areas. The soil basal respiration of the secondary forest was higher than that of the Pinus yunnanensis plantation, both in the non-karst and the karst areas. In addition, the driving factors of the soil microbial community functional diversity in the non-karst and karst areas are different. Our findings suggest that soil microbial functional diversity is governed by vegetation types as well as by soil properties in subtropical forests. Moreover, calcareous soil holds a higher proportion of recalcitrant organic carbon, which is difficult to utilize by microorganisms.

scholarly journals Long-term cover cropping seasonally affects soil microbial carbon metabolism in an apple orchard

Bioengineered ◽  
2019 ◽  
Vol 10 (1) ◽  
pp. 207-217 ◽  
Author(s):  
Jianfeng Yang ◽  
Tairan Zhang ◽  
Rongqin Zhang ◽  
Qianqian Huang ◽  
Huike Li
Keyword(s):  
Carbon Metabolism ◽  
Apple Orchard ◽  
Soil Microbial ◽  
Cover Cropping ◽  
Microbial Carbon

scholarly journals Biomass and activity soil microorganisms in grazing and secondary forests areasA

2016 ◽  
Vol 8 (1) ◽  
pp. 107-113
Author(s):  
Rodolfo WingChing-Jones ◽  
Lidieth Uribe Lorío
Keyword(s):  
Microbial Activity ◽  
Functional Diversity ◽  
Soil Microorganisms ◽  
Carbon Deposition ◽  
Secondary Forest ◽  
Shannon Index ◽  
Secondary Forests ◽  
Biolog Ecoplates ◽  
Three Samples ◽  
Carbon Substrates

Sustainable livestock production generates benefits for the environment, such as water capture, increased biodiversity and carbon dioxide capture. To measure these factors in a tropical setting, in 2007 we took three samples of a milk production system in Turrialba, Cartago, Costa Rica, in areas with permanent African Star grass cover (under grazing) and a secondary forest with 15 years of regeneration. We estimated carbon content in the microbial biomass, microbial activity (breathing technique), carbon usage profile (BIOLOG ECOPLATES®) and functional diversity of microorganisms (Shannon index). Biomass carbon in the pasture was 3,3 times higher than in the forest, but microbial activity was similar. Carbon use rate ranged from 22,22 to 85,19% in the pasture (higher in the forest: 29,63 to 92,59%). In both areas growth correlated with incubation time, but the forest had more biodiversity. Pasture areas are favored by carbon deposition to the rhizosphere, while the variety of vegetation in the forest allows greater functional diversity in the use of carbon substrates. 

scholarly journals Comparation study of soil genetic diversity of bacteria and fungi in different vegetation successions in a karst of Guizhou province, China

2021 ◽  
Vol 50 (2-3) ◽  
Author(s):  
Yidong Mi ◽  
Hongda Fang ◽  
Tao Peng ◽  
Min Zhou ◽  
Xinru Li ◽  
...  
Keyword(s):  
Genetic Diversity ◽  
Bacterial Communities ◽  
Secondary Forest ◽  
Diversity Index ◽  
Shannon Index ◽  
Fungal Communities ◽  
Karst Area ◽  
Primary Forest ◽  
Karst Areas ◽  
Bacteria And Fungi

To study the soil genetic diversity of bacteria and fungi in different vegetation successions (grassland, shrubbery, primary forest and secondary forest) from the karst area, the Polymerase Chain Reaction-Denaturing Gradient Gel Electrophoresis (PCR-DGGE) technology was applied. The results showed that: (1) the diversity of bacterial communities and the fungal communities in karst area were higher than non karst area in each vegetation succession. Compared with the survey from bacterial (the Shannon index was 2.97 in primary forest, 2.91 in secondary forest, 3.18 in shrubbery, 3.14 in grassland and 2.68 in non karst), fungal diversity between karst areas (the Shannon index was 3.56 in primary forest, 3.78 in secondary forest, 3.73 in shrubbery and 3.70 in grassland) and non karst areas (the Shannon index was 3.08) was more evident, which may be related to the alterations of the composition of plant community and the source of carbon in soil with the vegetation succession of karst ecosystem; (2) The comparation of bacterial diversity index and the richness comprehensively evaluated as follows: shrubbery > grassland > primary forest > nsecondary forest. The diversity index and the richness of fungal communities was as follows: secondary forest > shrubbery > grassland > primary forest. The results suggest that the fungal communities have been greatly changed via vegetation successions, but the diversity index and the richness of the bacterial communities have not been seriously affected. The results provide scientific basis for understanding karst surface ecosystem, which contributes to the future aim of protecting the karst from desertification.

Influences of changing carbon inputs on soil microbial carbon metabolism in natural secondary forests in Yimeng mountainous area

2021 ◽  
Vol 41 (10) ◽  
Author(s):  
李秋梅，黎胜杰，王欣丽，刘波，张广娜，张弛，高远，梅鹤平，王芸 LI Qiumei
Keyword(s):  
Carbon Metabolism ◽  
Mountainous Area ◽  
Secondary Forests ◽  
Soil Microbial ◽  
Microbial Carbon

Soil microbial carbon metabolism reveals a disease suppression pattern in continuous ginger mono-cropping fields

2019 ◽  
Vol 144 ◽  
pp. 165-169 ◽  
Author(s):  
Xiaojiao Liu ◽  
Qipeng Jiang ◽  
Xueqin Hu ◽  
Shuting Zhang ◽  
Ying Liu ◽  
...  
Keyword(s):  
Carbon Metabolism ◽  
Disease Suppression ◽  
Soil Microbial ◽  
Microbial Carbon

scholarly journals Thinning enhances ecosystem multifunctionality via increase of functional diversity in a Pinus yunnanensis natural secondary forest

2020 ◽  
Author(s):  
Xiaobo Huang ◽  
Shuaifeng Li ◽  
Jianrong Su
Keyword(s):  
Functional Diversity ◽  
Significant Positive Correlation ◽  
Secondary Forest ◽  
Ecosystem Functions ◽  
Control Group ◽  
Positive Correlation ◽  
Thinning Intensity ◽  
Natural Secondary Forest ◽  
Pinus Yunnanensis ◽  
Ecosystem Multifunctionality

Abstract Background: The impacts of thinning on ecosystem multifunctionality (EMF) remain largely unexplored. In this study, we analyzed nine variables related to four ecosystem functions (nutrient cycling, soil carbon stocks, decomposition, and wood production) under five thinning intensities. We included a control group to evaluate the shift in EMF of a Pinus yunnanensis natural secondary forest. We also assessed the relationship between above- and belowground biodiversity and EMF under these different thinning intensities. Additionally, we evaluated the effects of biotic and abiotic factors on EMF with the structural equation model (SEM). Results: We found that EMF tended to increase with thinning intensity, and that thinning significantly improved EMF except the low intensity of thinning. Individual ecosystem functions (EFs) all had a significant positive correlation with thinning intensity. Different EFs showed different patterns with the increase of thinning intensity: the nutrient cycling and the soil carbon stock of thinning three times and five times were significantly greater than other thinning intensities and control group; decomposition correlated directly to the increase of thinning intensity; the wood production of the fourth thinning was greatest. Thinning intensity had a significant positive correlation with functional diversity and soil moisture. Both functional diversity and soil moisture had a significant positive correlation with EMF, but soil fungal operational taxonomic units (OTUs) had a significant negative correlation with EMF. Based on SEM, we found that thinning improved EMF mainly by increasing functional diversity. Conclusion: Our study both demonstrates that thinning is a good management technique from an EMF perspective, and provides an input to improve management of a P. yunnanensis natural secondary forest.

scholarly journals Soil Microbial Functional Diversity Responses to Different Vegetation Types in the Heilongjiang Zhongyangzhan Black-billed Capercaillie Nature Reserve

2021 ◽  
Author(s):  
Xiaohong Weng ◽  
Jiayi Li ◽  
xin sui ◽  
Mengsha Li ◽  
Weiping Yin ◽  
...  
Keyword(s):  
Functional Diversity ◽  
Nature Reserve ◽  
Forest Type ◽  
Diversity Index ◽  
Soil Microbial Communities ◽  
Principal Component ◽  
Terrestrial Ecosystems ◽  
Vegetation Types ◽  
Microbial Functional Diversity ◽  
Soil Microbial

Abstract Purpose: The soil microbial community is an important bioactive component of terrestrial ecosystems. Its structural and functional diversity directly affects carbon and nitrogen processes. This study aimed to investigate the variations in the functional diversity of soil microbial communities in forests with different types of vegetation. Methods: We selected three typical vegetation types, larch (LG), black birch (BD), and larch and black birch mixed (LGBD) forests, located in the Heilongjiang Zhongyangzhan Black-billed Capercaillie Nature Reserve. The Biolog-Eco microplate technology was selected to perform these analyses. Result: Our results showed clear differences between microorganisms in the three typical forests. The average well-colour development (AWCD) change rate gradually increased with incubation time. The BD type had the highest AWCD value, followed by LGBD; the LG forest type had the lowest value. The difference in the soil microbial alpha diversity index between BD and LG was significant. A principal component analysis showed that PC1 and PC2 respectively explained 62.77% and 13.3% of the variance observed. The differences in the soil microbial carbon-source utilization patterns under different vegetation types were mainly caused by esters and carbohydrates. Redundancy analysis showed that soil microbial functional diversity was strongly affected by soil physicochemistrical properties (e.g. organic carbon, total nitrogen, and pH). Conclusion: These results provide a reference for further exploring the relationship between forest communities and soil microbes during the process of forest succession.

scholarly journals Genetic and functional diversity of soil bacteria and fungi from different microhabitats in a karst region in Southern China

2021 ◽  
Vol 83 (3) ◽  
pp. 120-132
Author(s):  
Xinru Li ◽  
Min Zhou ◽  
Yidong Mi ◽  
Haiyan Chen ◽  
Hailei Su ◽  
...  
Keyword(s):  
Community Structure ◽  
Bacterial Community ◽  
Functional Diversity ◽  
Bacterial Community Structure ◽  
Nature Reserve ◽  
Vegetation Type ◽  
Karst Region ◽  
Vegetation Types ◽  
Soil Microbial ◽  
Bacteria And Fungi

Little is known about the difference between bacterial and fungal genetic and functional diversity in karst regions of south China. In this study, the genetic and functional diversity of bacteria and fungi in nine types of soil microenvironments in the karst region in Maolan National Nature Reserve in Guizhou were investigated by PCR-DGGE (Denaturing Gradient Gel Electrophoresis) and BIOLOG EcoPlates. Maolan National Nature Reserve is a UNESCO Biosphere Reserve and plays an important role in protecting the karst forest ecosystem and rare and endangered wild animals and plants in central Asia. The results showed that the diversity of both bacteria and fungi was high and the main factors influencing the diversity of bacteria and fungi were different. The bacterial community structure from different microhabitats under the same vegetation type had higher similarity than similar microhabitats in different vegetation types, which could indicate that the bacterial community structure was mainly controlled by vegetation. For fungi, similar microhabitat species under different vegetation types had higher similarities than different microhabitats species under the same vegetation type, which could indicate that the fungal community structure is mainly controlled by microhabitats. In addition, the metabolic patterns of similar microhabitats in different vegetation were different, while the metabolic patterns of different microhabitats in the same vegetation were not obviously different. In conclusion, the effect of vegetation types on soil microbial functional diversity was greater than that of microhabitats, and this difference was reflected by the different degrees of influence on soil microbial genetic diversity and community structure.

Diversity in Microbial Carbon Metabolism of the Oil Shale at the Western Open Group in Fushun Basin

2013 ◽  
Vol 864-867 ◽  
pp. 140-144
Author(s):  
Shao Yan Jiang ◽  
Wen Xing Wang ◽  
Xiang Xin Xue
Keyword(s):  
Amino Acids ◽  
Functional Diversity ◽  
Carbon Metabolism ◽  
Oil Shale ◽  
Diversity Index ◽  
Carbon Sources ◽  
Acid Metabolite ◽  
Different Types ◽  
Microbial Carbon ◽  
Better Than

The oil shale in the Western Fushun Basin as research object was investigated by Biolog-ECO to explore the functional diversity in microbial carbon metabolism of the oil shale. The process of Biolog-ECO was that, first determining the microbial community level physiological patterns during the 7 consecutive days by ECO microplate, then analyzing the differences in microbial metabolism of different types of carbon. The results showed that there were significant differences of the rate and extent in different types of carbon metabolism. The metabolism of carbohydrates, amino acids and amines carbon were significantly better than other carbon sources in all microbial communities, while the metabolism of acid metabolite was poor. Through continuous multi-point measuring the diversity index of Shannon-wiener, Simpson and McIntosh, overall, the microbial diversity was good, but with the time passing, the functional diversity of the carbon metabolism decreased.

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