Comparative study on microbial community structure across orchard soil, cropland soil, and unused soil

Abstract

We examined the effects of three different soil conditions (orchard soil, cropland soil, unused soil) on the functional diversity of soil microbial communities. The results first showed that orchard and cropland land use significantly changed the distribution and diversity of soil microbes, particularly at surface soil layers. The richness index (S) and Shannon diversity index (H) of orchard soil microbes were significantly higher than the indices of the cropland and unused soil treatments in the 0–10 cm soil layer, while the S and H indices of cropland soil microbes were the highest in 10–20 cm soil layers. Additionally, the Simpson dominance index of cropland soil microbial communities was the highest across all soil layers. Next, we found that carbon source differences in soil layers under the three land use conditions can mainly be attributed to their carbohydrate and polymer composition, indicating that they are the primary cause of the functional differences in microbial communities under different land uses. In conclusion, orchard and cropland soil probably affected microbial distribution and functional diversity due to differences in vegetation cover, cultivation, and management measures.

Diversity of yeasts in the soil adjacent to fruit trees of the Rosaceae family

“…In the present paper, a traditional plating technique and a complex medium, which included the most common sugar present in soil (glucose; Gunina & Kuzyakov, ) and a sodium silicate solution (the second most common element present in soil; Vadkertiová et al, ), was used to find the diversity of yeast species associated with the soil adjacent to five fruit trees of the Rosacae family. The soil samples were collected from the surface down to a maximum depth of 10 cm in which layer the richness and diversity of microbes is greatest (Cheng, Zhao, Lv, Li, & Du, ).…”

Variability in Soil Physicochemical Properties and Microbial Population in an Indian Subtropical Forest

“…The microbial activities have been correlated with soil physico-chemical characteristics [3]. It has been reported that soil microbial community composition and metabolic functions depend on the amount and quality of organic matter which is the major source for the survival and sustenance of the soil biota [4]. Soil respiration in terms of CO 2 efflux, considered as an important functional attribute of metabolism, occurs mainly due to the aerobic decomposition of organic matter [5][6][7][8].…”