Soil microbial community structure, enzyme activities, and their influencing factors along different altitudes of Changbai Mountain

Xiaonan, 谷晓楠 Gu; He, Hong S.; Yan, 陶岩 Tao; Yinghua, 靳英华 Jin; Xinyu, 张心昱 Zhang; Zhiwei, 徐志伟 Xu; Yuting, 王钰婷 Wang; Xiangxia, 宋祥霞 Song

doi:10.5846/stxb201611252415

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“…This is because soil carbon content directly affects the cycling of materials and the growth and reproductive capacity of microorganisms, providing a suitable environment for enzyme activity, while nitrogen is a source of plant-available nitrogen that can provide energy for microbial enzyme secretion. Therefore, higher carbon and nitrogen content is beneficial for the synthesis of soil enzymes [70,71]. The impact of the soil C:N ratio on soil enzymes may be due to the fact that soil enzymes mainly come from the decomposition of litter, microbial production, and root secretion products.…”

Section: Driving Factors Of Changes In Soil Enzyme Activity During Th...mentioning

confidence: 99%

Changes in Soil Properties and Enzyme Stoichiometry in Three Different Forest Types Changed to Tea Plantations

Li,

Zhang,

Qiu

et al. 2023

Forests

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Understanding the characteristics and driving factors of soil carbon, nitrogen, phosphorus, and enzyme stoichiometry during land use/cover change is of great significance for assessing microbial nutrient restriction and sustainable land development during the process. China, the world’s largest tea producer, is witnessing a significant expansion of tea plantations into previously forested areas. We performed field sampling in three forest types with the area partially converted to tea plantations in Wuyishan National Park. We examined the changes in soil carbon (TC), nitrogen (TN), phosphorus (TP), and three kinds of extracellular enzyme activities, β-glucosidase (BG), β-n-acetylglucosidase (NAG), and acid phosphatase (ACP). By analyzing the enzyme stoichiometric ratio, vector length (VL), and vector angle (VA), the relative nutrient limitations of soil microorganisms were explored. The results showed that soil TC and TN decreased significantly (p < 0.05), TP increased significantly, and soil carbon (C):nitrogen (N), carbon (C):phosphorus (P), and nitrogen (N):phosphorus (P) ratios decreased significantly after the conversion of forest land to tea plantation. Soil BG, NAG, and ACP contents decreased significantly (p < 0.05). There were no significant differences in enzyme carbon:nitrogen ratios (EC/N), enzyme carbon:phosphorus ratios (EC/P), enzyme nitrogen:phosphorus ratios (EN/P), VL, or VA (p > 0.05). Through the analysis of soil enzyme stoichiometry, it was found that forest soil was generally limited by P, which was, to some extent, relieved after the conversion to tea plantation. Redundancy analysis showed that TC, TN, and the C:N ratio were the main factors influencing enzyme activity and stoichiometry. These results indicated that land use/cover change had significant effects on soil nutrient status, enzyme activity, and stoichiometry. Soil enzyme activity is very sensitive to the changes in soil nutrients and can reflect the restriction of soil nutrients more accurately.

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Section: Driving Factors Of Changes In Soil Enzyme Activity During Th...mentioning

confidence: 99%

Changes in Soil Properties and Enzyme Stoichiometry in Three Different Forest Types Changed to Tea Plantations

Li,

Zhang,

Qiu

et al. 2023

Forests

View full text Add to dashboard Cite

show abstract

Soil microbial community structure, enzyme activities, and their influencing factors along different altitudes of Changbai Mountain

Cited by 1 publication

References 0 publications

Changes in Soil Properties and Enzyme Stoichiometry in Three Different Forest Types Changed to Tea Plantations

Changes in Soil Properties and Enzyme Stoichiometry in Three Different Forest Types Changed to Tea Plantations

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