Long-term effects of gravel mulching and straw mulching on soil physicochemical properties and bacterial and fungal community composition in the Loess Plateau of China

2020 ◽  
Vol 98 ◽  
pp. 103188 ◽  
Author(s):  
Yang Qiu ◽  
Wencong Lv ◽  
Xinping Wang ◽  
Zhongkui Xie ◽  
Yajun Wang
Keyword(s):  
Physicochemical Properties ◽  
Community Composition ◽  
Loess Plateau ◽  
Fungal Community ◽  
Soil Physicochemical Properties ◽  
Long Term Effects ◽  
The Loess Plateau ◽  
Fungal Community Composition ◽  
Straw Mulching

scholarly journals The Missing Metric: An Evaluation of Fungal Importance in Wetland Assessments

Wetlands ◽  
2019 ◽  
Vol 40 (4) ◽  
pp. 825-838
Author(s):  
Aaron Onufrak ◽  
Megan A. Rúa ◽  
Katie Hossler
Keyword(s):  
Physicochemical Properties ◽  
Community Composition ◽  
Fungal Community ◽  
Rapid Assessment ◽  
Soil Health ◽  
Assessment Method ◽  
Soil Physicochemical Properties ◽  
Fungal Community Composition ◽  
Rapid Assessment Method ◽  
Wetland Quality

AbstractTo preserve wetland ecosystem function, federal and state agencies have developed assessment procedures to better manage remaining wetland areas. Currently, wetland assessments do not consider microorganisms when determining wetland quality. This is notable, because fungi are often the primary decomposers of organic material and thus important players in nutrient cycling. The objective of this study is to quantify how wetland quality, as measured using the Ohio Rapid Assessment Method (ORAM), relates to fungal community composition. We sampled soils from six depressional emergent marshes in Ohio belonging to each of the three ORAM quality categories, assessed soil physicochemical properties, and recovered fungal DNA. We then determined if wetland quality as expressed by the ORAM reflects soil health. Our results indicate that ORAM scoring methodology significantly explains differences in fungal community composition between wetlands. We also found that soil physicochemical properties not currently included in the ORAM are strong drivers of fungal community composition, particularly bulk density, pH, soil organic matter, and soil moisture. Overall, our results suggest fungal community composition reflects wetland quality as assessed by the ORAM, and that the ORAM and potentially other wetland assessments could better capture the soil environment by including easily measured soil physicochemical properties.

In search of long-term sustainable tillage and straw mulching practices for a maize-winter wheat-soybean rotation system in the Loess Plateau of China

2018 ◽  
Vol 217 ◽  
pp. 199-210 ◽  
Author(s):  
Zhou Li ◽  
Xingfa Lai ◽  
Qian Yang ◽  
Xuan Yang ◽  
Song Cui ◽  
...  
Keyword(s):  
Winter Wheat ◽  
Loess Plateau ◽  
The Loess Plateau ◽  
Straw Mulching ◽  
Rotation System

scholarly journals Responses of fungal community composition to long-term chemical and organic fertilization strategies in Chinese Mollisols

2018 ◽  
Vol 7 (5) ◽  
pp. e00597 ◽  
Author(s):  
Mingchao Ma ◽  
Xin Jiang ◽  
Qingfeng Wang ◽  
Marc Ongena ◽  
Dan Wei ◽  
...  
Keyword(s):  
Community Composition ◽  
Fungal Community ◽  
Organic Fertilization ◽  
Fungal Community Composition

Effects of long-term fertilization on AM fungal community structure and Glomalin-related soil protein in the Loess Plateau of China

2010 ◽  
Vol 342 (1-2) ◽  
pp. 233-247 ◽  
Author(s):  
Fasi Wu ◽  
Maoxing Dong ◽  
Yongjun Liu ◽  
Xiaojun Ma ◽  
Lizhe An ◽  
...  
Keyword(s):  
Community Structure ◽  
Loess Plateau ◽  
Fungal Community ◽  
The Loess Plateau ◽  
Fungal Community Structure ◽  
Soil Protein

scholarly journals Changes in soil physicochemical properties and bacterial communities at different soil depths after long-term straw mulching under a no-till system

SOIL ◽  
2021 ◽  
Vol 7 (2) ◽  
pp. 595-609
Author(s):  
Zijun Zhou ◽  
Zengqiang Li ◽  
Kun Chen ◽  
Zhaoming Chen ◽  
Xiangzhong Zeng ◽  
...  
Keyword(s):  
Physicochemical Properties ◽  
Bacterial Communities ◽  
Bacterial Abundance ◽  
Soil Physicochemical Properties ◽  
Organic C ◽  
Straw Mulching ◽  
Soil Bacterial Communities ◽  
No Till ◽  
Relative Abundances

Abstract. Conservation tillage has attracted increasing attention over recent decades, mainly due to its benefits for improving soil organic matter content and reducing soil erosion. However, the effects of long-term straw mulching under a no-till system on soil physicochemical properties and bacterial communities at different soil depths are still unclear. In this 12-year experiment of straw removal (CK) and straw mulching (SM) treatments, soil samples were collected at 0–5, 5–10, 10–20, and 20–30 cm soil depths. The results showed that the contents of organic carbon (C), nitrogen (N), and phosphorus (P) fractions, and bacterial abundance significantly decreased, whereas pH significantly increased with soil depth. Compared with CK, SM significantly increased total N, inorganic N, available P, available potassium, and soil water content at 0–5 cm, total organic C content at 0–10 cm, and dissolved organic C and N contents at 0–20 cm. Regarding bacterial communities, SM increased the relative abundances of Proteobacteria, Bacteroidetes, and Acidobacteria but reduced those of Actinobacteria, Chloroflexi, and Cyanobacteria. Bacterial Shannon diversity and Shannon's evenness at 0–5 cm were reduced by SM treatment compared to CK treatment. Furthermore, SM increased the relative abundances of some C-cycling genera (such as Terracidiphilus and Acidibacter) and N-cycling genera (such as Rhodanobacter, Rhizomicrobium, Dokdonella, Reyranella, and Luteimonas) at 0–5 cm. Principal coordinate analysis showed that the largest difference in the composition of soil bacterial communities between CK and SM occurred at 0–5 cm. Soil pH and N and organic C fractions were the major drivers shaping soil bacterial communities. Overall, SM treatment is highly recommended under a no-till system because of its benefits to soil fertility and bacterial abundance.

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