Bamboo Expansion and Soil Microbial Communities

Soil microbial community include bacteria, fungi, actinomycetes, algae, and protozoa. The quantity is very large, there are hundreds of millions to tens of billions of microorganisms in 1 gram soil. Most soil microorganisms are beneficial to the growth and development of crops, and they have a significant impact on the formation and development of soil, material circulation, and fertility evolution. There are millions of species of bacteria and fungi on Earth, and they participate in almost all life processes. In addition, the total carbon content of bacteria is about 60–100% of the carbon content of plant. Soil is not simply a simple combination of soil particles and nutrient elements. As an active component of soil, soil microorganisms contribute to soil particles through the exchange of carbon dioxide and oxygen through metabolic activities in their life processes, as well as through the secretion of organic acids. A large aggregate structure is formed, and finally, a real soil is formed. Soil formation and development are closely related to the flora composition, biomass, and life activities of soil microorganisms. Microorganisms also play an important role in the biogeochemical cycle, including carbon, nitrogen, phosphorus, etc. The feedback or response of soil microbial communities to bamboo expansion will substantially impact the nutrient cycling process in the expanded ecosystem.