scholarly journals Total nitrogen is the main soil property associated with soil fungal community in karst rocky desertification regions in southwest China

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Daihua Qi ◽  
Xuwen Wieneke ◽  
Peipei Xue ◽  
Li He ◽  
Udaya DeSilva
Keyword(s):  
Fungal Community ◽  
Soil Fungi ◽  
Southwest China ◽  
Land Restoration ◽  
Karst Rocky Desertification ◽  
Illumina Hiseq ◽  
Rocky Desertification ◽  
Degraded Soil ◽  
Soil Fungal Community ◽  
The Impact

AbstractKarst rocky desertification (KRD) is a type of land deterioration, resulting in the degraded soil and a delicate ecosystem. Previous studies focused on the influence of KRD on the animals and plants, the impact of KRD on microorganisms, especially soil fungi remains to be discovered. This study reveals the change in the soil fungal community in response to KRD progression in southwest China. Illumina HiSeq was used to survey the soil fungal community. Results showed that the soil fungal community in the severe KRD (SKRD) was noticeably different from that in other KRD areas. Statistical analyses suggested that soil TN was the primary factor associated with the fungal community, followed by pH. Phylum Ascomycota was significantly abundant in non-degraded soils; whereas Basidiomycota predominated in SKRD. The ratio of Ascomycota/Basidiomycota significantly decreased along with KRD progression, which might be used as an indicator of KRD severity. Phylum Basidiomycota was sensitive to changes in all the soil properties but AP. Genus Sebacina might have the potential to promote vegetation and land restoration in KRD areas. This study fills a gap of knowledge on changes in soil fungal communities in accordance with KRD progression.

scholarly journals Redevelopment of biological activity in stripmine spoils: saprotrophic fungi – abstract

1988 ◽  
Vol 94 ◽  
pp. 85-85
Author(s):  
Suzanne Visser
Keyword(s):  
Fungal Community ◽  
Soil Disturbance ◽  
Plant Residues ◽  
Fungal Community Composition ◽  
Saprotrophic Fungi ◽  
Fungal Community Structure ◽  
Soil Fungal Community ◽  
And Function ◽  
The Impact ◽  
Decomposition Of Plant Residues

The impact of severe soil disturbance on soil fungal community composition and function and how this relates to the resultant decomposition/mineralisation process is very poorly understood. Consequently, research was conducted to determine: (a) to what degree fungal community structure and potential function are altered in a sub-alpine coal mine spoil (Luscar, Alberta), and (b) how do alterations in the fungal community affect patterns of fungal colonisation and decomposition of plant residues deposited on recently mined soil.

scholarly journals The challenge and future of rocky desertification control in karst areas in southwest China

Solid Earth ◽  
2016 ◽  
Vol 7 (1) ◽  
pp. 83-91 ◽  
Author(s):  
J. Y. Zhang ◽  
M. H. Dai ◽  
L. C. Wang ◽  
C. F. Zeng ◽  
W. C. Su
Keyword(s):  
Southwest China ◽  
Scientific Research ◽  
Lessons Learned ◽  
Dynamic Monitoring ◽  
Chinese Government ◽  
Second Phase ◽  
Karst Rocky Desertification ◽  
Ecological Compensation ◽  
Rocky Desertification ◽  
Desertification Control

Abstract. Karst rocky desertification occurs after vegetation deteriorates as a result of intensive land use, which leads to severe water loss and soil erosion and exposes basement rocks, creating a rocky landscape. Karst rocky desertification is found in humid areas in southwest China, the region most seriously affected by rocky desertification in the world. In order to promote ecological restoration and help peasants out of poverty, the Chinese government carried out the first phase of a rocky desertification control project from 2006 to 2015, which initially contained the expansion of rocky desertification. Currently, the Chinese government is prepared to implement the second phase of the rocky desertification control project, and therefore it is essential to summarise the lessons learned over the last 10 years of the first phase. In this paper, we analyse the driving social and economic factors behind rocky desertification, summarise the scientific research on rocky desertification in the region, and finally identify the main problems facing rocky desertification control. In addition, we put forward several policy suggestions that take into account the perspective of local peasants, scientific research, and China's economic development and urbanisation process. These suggestions include promoting the non-agriculturalization of household livelihoods, improving ecological compensation, strengthening the evaluation of rocky desertification control and dynamic monitoring, and strengthening research on key ecological function recovery technologies and supporting technologies.

scholarly journals Effects of long-term integrated agri-aquaculture on the soil fungal community structure and function in vegetable fields

2021 ◽  
Vol 11 (1) ◽  
Author(s):  
Xianqing Zheng ◽  
Ke Song ◽  
Shuangxi Li ◽  
Hanlin Zhang ◽  
Naling Bai ◽  
...  
Keyword(s):  
Community Structure ◽  
Fungal Community ◽  
Soil Fungi ◽  
Structure And Function ◽  
Dominant Factor ◽  
Fungal Community Structure ◽  
Vegetable Field ◽  
Soil Fungal Community ◽  
Field Systems ◽  
And Function

AbstractThe diversity and community structure of soil fungi play an important role in crop production and ecosystem balance, especially in paddy-upland vegetable field systems. High-throughput sequencing was used to study changes in the soil fungal community structure and function in paddy-upland vegetable field systems. The results showed that compared with traditional planting, the diversity and community structure of soil fungi were changed by the combination of flooding and drought, the Shannon index increased by 11.07%, and the proportion of the dominant species, Mortierella, decreased by 22.74%. Soil available nitrogen, total phosphorus, available phosphorus, total nitrogen and organic matter played a leading role in the initial stage of the experiment, while the dominant factor changed to total potassium 3 years later and then to soil pH and water content 6 years later. FUNGuild analysis showed that the proportion of three independent trophic modes of soil fungi were increased by the combined flooded-drought model, and there were multiple interaction factors, For example, nutrient supply, pH and planting pattern. This study showed that soil fertility, crop yield and economic benefits were better than the traditional model after three years of planting and breeding. The longer the time, the better the effect.

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