As can be seen in Table 2 , there was a decreasing trend of Ace and Chao indices of ND, LD, and HD sites with increased soil depth suggesting that total bacterial species richness declined on an overall basis deeper in the soil.
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Soil Microbial Community Characteristics and Influencing Factors in Alpine Marsh Wetlands with Different Degradation Levels in Qilian Mountain National Park, Qinghai, China.
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Conclusions (1) With the increasing degree of degradation, the soil moisture content, SOM, TN, TP, CEC, and TOC contents in the study area gradually decrease, while soil pH and TK content show an increasing trend.