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Dr. Puchang Wang
Guizhou Institution of Prataculture, Guizhou Academy of Agricultural Sciences, China

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Research Keywords & Expertise

0 Land Use
0 Micro
0 Soil Microbiome
0 Comunity Ecology
0 elemental limitation of microbes

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Journal article
Published: 21 November 2020 in Science of The Total Environment
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Microbes simultaneously drive multiple functions (multifunctionality) that support human well-being. However, the structure and function of microbial communities and their impact on soil multifunctionality following grassland afforestation remains unknown, thus hindering our ability to formulate conservation policies. We compared soil bacterial and fungal communities, soil abiotic properties, and soil nitrogen (N) function and multifunctionality in the afforested sites that were previously grassland, on a subtropical plateau in China. We also explored the degree to which the niche complementarity effect and the selection effect of microbes are linked to soil N function and multifunctionality. We found that afforestation of grassland significantly decreased pH, available N concentration and density, and soil multifunctionality. However, afforestation significantly increased C (carbon) limitation and shifted soil microbes from being limited by N to, instead, being co-limited by N and P (phosphorus). The significant decrease in available N was primarily driven by soil microbes. In shaping soil N availability, the effect of bacterial diversities was stronger than that of fungal diversities, and the effect of fungal functional diversities was stronger than that of bacterial functional diversities. The effect of functional diversities was greater than that of all the significant changes in the functions and, also, the significant changes in the N-related functions. These results further emphasized that functional niche complementarity dominated soil N availability. In addition, bacterial taxonomic diversities showed positive effects of niche complementarity on soil multifunctionality; ultimately, the losses in bacterial taxonomic diversities derived from the increases in C limitation and the shifts in NP limitation combined to impaired soil multifunctionality. Our results suggested that the optimization of soil microbial functional diversities might increase soil N availability, and that minimizing losses of soil microbial taxonomic diversities by optimizing soil abiotic environments might improve soil multifunctionality.

ACS Style

Leilei Ding; Puchang Wang. Afforestation suppresses soil nitrogen availability and soil multifunctionality on a subtropical grassland. Science of The Total Environment 2020, 761, 143663 .

AMA Style

Leilei Ding, Puchang Wang. Afforestation suppresses soil nitrogen availability and soil multifunctionality on a subtropical grassland. Science of The Total Environment. 2020; 761 ():143663.

Chicago/Turabian Style

Leilei Ding; Puchang Wang. 2020. "Afforestation suppresses soil nitrogen availability and soil multifunctionality on a subtropical grassland." Science of The Total Environment 761, no. : 143663.

Journal article
Published: 19 December 2019 in Science of The Total Environment
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Global shrub encroachment (SE) affects the structure and function of grassland ecosystem. The effects of SE on plant and soil abiotic properties have been well studied; however, little is known about the extent to which driving forces structure soil microbes under SE, especially in subalpine regions of the Guizhou Plateau of China, which is undergoing progressive SE. We investigated the plant factors (viz, plant diversity and relative shrub cover), soil physicochemical properties, enzymatic activities, and microbial communities, quantified microbial element limitations under three encroachment stages, and disentangled the effects sizes of the factors that structure the diversity and composition of soil microbial communities. Redundancy analysis showed that soil factors made a greater contribution than plant factors to shaping the diversity and composition of the soil bacterial community, soil chemical factors made a greater contribution than physical factors both to structuring the diversity and composition of the soil bacterial community and to structuring the composition of the soil fungal community; and soil nutrient stoichiometry made a greater contribution than soil nutrient content to shaping soil bacterial community's diversity and fungal community's composition. In contrast, soil nutrient content made a greater contribution than soil nutrient stoichiometry to shaping the soil bacterial community's composition. The decrease in bacterial community's diversity observed under SE was attributable to increases in the carbon and nitrogen limitations consequent to SE, and the nitrogen limitation had a greater contribution to the soil bacterial community's diversity and composition than did the carbon limitation. These findings provide updated knowledge of the driving forces shaping the diversity and composition of soil microbial communities, which could be crucial for improving microbial prediction models and revealing the element cycling that occurs in SE biomes.

ACS Style

Leilei Ding; Yishun Shang; Wen Zhang; Yu Zhang; Shige Li; Xin Wei; Yujun Zhang; Xuelian Song; Xi Chen; Jiajia Liu; Fuli Yang; Xuedong Yang; Chao Zou; Puchang Wang. Disentangling the effects of driving forces on soil bacterial and fungal communities under shrub encroachment on the Guizhou Plateau of China. Science of The Total Environment 2019, 709, 136207 .

AMA Style

Leilei Ding, Yishun Shang, Wen Zhang, Yu Zhang, Shige Li, Xin Wei, Yujun Zhang, Xuelian Song, Xi Chen, Jiajia Liu, Fuli Yang, Xuedong Yang, Chao Zou, Puchang Wang. Disentangling the effects of driving forces on soil bacterial and fungal communities under shrub encroachment on the Guizhou Plateau of China. Science of The Total Environment. 2019; 709 ():136207.

Chicago/Turabian Style

Leilei Ding; Yishun Shang; Wen Zhang; Yu Zhang; Shige Li; Xin Wei; Yujun Zhang; Xuelian Song; Xi Chen; Jiajia Liu; Fuli Yang; Xuedong Yang; Chao Zou; Puchang Wang. 2019. "Disentangling the effects of driving forces on soil bacterial and fungal communities under shrub encroachment on the Guizhou Plateau of China." Science of The Total Environment 709, no. : 136207.

Journal article
Published: 22 March 2019 in Sustainability
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Soil nutrient stoichiometry plays a substantial role in terrestrial carbon and nutrient cycling. However, the changes in soil nutrient stoichiometry with shrub encroachment (SE) remain poorly understood, especially in subalpine areas. We examined the changes in soil nutrient concentration, nutrient stoichiometry, and organic carbon (OC) storage (at a depth of 0–5, 5–10 and 10–20 cm) in three successional shrub encroachment stages (early, mid and late) in an abandoned subalpine Eulalia pallens (Hackel) Kuntze grassland. An ANOVA showed that SE did not produce serious soil acidification, but significantly increased the soil OC and total phosphorous (TP) concentration, and improved the stoichiometry ratio of soil OC to total nitrogen (OC:TN) in all layers. OC storage tended to increase with SE. SE thus did not indicate degradation of the grassland. A redundancy analysis (RDA) and partial RDA revealed that the shrub relative cover and soil water content were the most important factors affecting the soil nutrient concentration, that the soil available phosphorous (AP), nitrogen, potassium, calcium (ACa), and magnesium concentration and shrub relative cover were the most important factors influencing soil nutrient stoichiometry ratios, and that soil OC:TN, TN:TP, OC:TN:TP, and AP:ACa ratios, bulk density, and pH were the most important factors influencing soil OC storage over SE. Our study provides insights into SE in grassland areas, and potentially provides a useful reference for ongoing grassland conservation and restoration in subalpine regions.

ACS Style

Leilei Ding; Puchang Wang; Wen Zhang; Yu Zhang; Shige Li; Xin Wei; Xi Chen; Yujun Zhang; Fuli Yang. Shrub Encroachment Shapes Soil Nutrient Concentration, Stoichiometry and Carbon Storage in an Abandoned Subalpine Grassland. Sustainability 2019, 11, 1732 .

AMA Style

Leilei Ding, Puchang Wang, Wen Zhang, Yu Zhang, Shige Li, Xin Wei, Xi Chen, Yujun Zhang, Fuli Yang. Shrub Encroachment Shapes Soil Nutrient Concentration, Stoichiometry and Carbon Storage in an Abandoned Subalpine Grassland. Sustainability. 2019; 11 (6):1732.

Chicago/Turabian Style

Leilei Ding; Puchang Wang; Wen Zhang; Yu Zhang; Shige Li; Xin Wei; Xi Chen; Yujun Zhang; Fuli Yang. 2019. "Shrub Encroachment Shapes Soil Nutrient Concentration, Stoichiometry and Carbon Storage in an Abandoned Subalpine Grassland." Sustainability 11, no. 6: 1732.