No synergistic effects of water and nitrogen addition on soil microbial communities and soil respiration in a temperate desert

CATENA ◽  
2016 ◽  
Vol 142 ◽  
pp. 126-133 ◽  
Author(s):  
Yan Gui Su ◽  
Gang Huang ◽  
Ya Jun Lin ◽  
Yuan Ming Zhang
Keyword(s):  
Soil Respiration ◽  
Microbial Communities ◽  
Synergistic Effects ◽  
Soil Microbial Communities ◽  
Nitrogen Addition ◽  
Soil Microbial ◽  
Temperate Desert

Patterns and mechanisms of responses by soil microbial communities to nitrogen addition

2017 ◽  
Vol 115 ◽  
pp. 433-441 ◽  
Author(s):  
Zhenghu Zhou ◽  
Chuankuan Wang ◽  
Mianhai Zheng ◽  
Lifen Jiang ◽  
Yiqi Luo
Keyword(s):  
Microbial Communities ◽  
Soil Microbial Communities ◽  
Nitrogen Addition ◽  
Soil Microbial

scholarly journals Plant And Soil Microbial Communities Regulate Soil Respiration In Response To Precipitation And Land Use In An Inner Mongolian Grassland

2021 ◽  
Author(s):  
Chi Zhang ◽  
Chao Song ◽  
Donghui Wang ◽  
Wenkuan Qin ◽  
Biao Zhu ◽  
...  
Keyword(s):  
Land Use ◽  
Soil Respiration ◽  
Microbial Communities ◽  
Precipitation Amount ◽  
Soil Microbial Communities ◽  
Soil Microbial ◽  
Altered Precipitation ◽  
Grassland Ecosystems ◽  
Mongolian Grassland

Abstract Purpose: Changes in precipitation amount and land use are expected to greatly impact soil respiration (Rs) of grassland ecosystems. However, little is known about whether they can interactively impact Rs and how plant and soil microbial communities regulate the response of Rs. Methods: Here, we investigated the impacts of altered precipitation amount (–50%, ambient and +50%) and land-use regime (fencing, mowing and grazing) on Rs with a field experiment in the Inner Mongolian grassland.Results: We found that altered precipitation amount impacted Rs and its components across the 3-year study period, while land-use regime alone or its interaction with precipitation amount impacted them in certain years. In addition, changed soil microclimate, especially soil moisture, under altered precipitation amount and land-use regime can impact the components of Rs either directly or indirectly via influencing plant and soil microbial communities.Conclusions: Integrating changing precipitation amount and land-use regime within experiment can produce more accurate insights into grassland Rs, and chronically shifted plant and soil microbial communities under these changes may result in distinct long-term impacts on Rs.

scholarly journals The Responses of Soil Microbial to Changed Rainfall and Increased Temperature in Desert Grassland in Northern China

2021 ◽  
Author(s):  
Yi Zhang ◽  
Ying-Zhong Xie ◽  
Hong-Bin Ma ◽  
Juan Zhang ◽  
Le Jing ◽  
...  
Keyword(s):  
Microbial Community ◽  
Soil Respiration ◽  
Microbial Diversity ◽  
Microbial Communities ◽  
Soil Microbial Community ◽  
Soil Microbial Communities ◽  
Response Strategy ◽  
Desert Grassland ◽  
Soil Microbial Diversity ◽  
Soil Microbial

Abstract Background: The study evaluates how rainfall change and temperature increase affect microbial communities in the desert grassland of Ningxia Autonomous Region, China to explore the soil microbial community and the relationships among the soil microbial community, chemical properties, soil respiration (SR) and plant biomass under the climate change. We established the field experiment with five levels of rainfall by rainout shelters and two levels of temperature by Open-Top Chamber (OTC). Results: The effect of temperature to soil microbial communities is not significant, but with the continuous increase of rainfall, the microbial community gradually increases. Soil microbial diversity negatively correlated with soil CO2 flux. The α-diversity of microbial communities positively correlated with above-living biomass (ALB) and soil temperature (ST), but negatively correlated with root biomass (RB). Conclusions: Both rainfall and temperature’s rising do not promote the soil community α-diversity, but it can promote soil microbial community β-diversity. Soil microbial communities show resistance to rainfall changing. Soil respiration (SR) will limit soil microbial diversity. Soil organic carbon (SOC), soil total nitrogen (STN), and soil total phosphorus (STP) will promote soil microbial abundance and diversity. ALB and ST will promote the soil α-diversity, but the effect of RB to soil microbial is opposite. These findings maybe provide a reliable theoretical basis for formulating a reasonable response strategy in desert steppe ecosystems.

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