Effects of vegetation types on soil microbial biomass C, N, P on the Loess Hilly Area

Zhao, Tong; Hao, 闫浩 Yan; Yueli, 蒋跃利 Jiang; Yimei, 黄懿梅 Huang; Shaoshan, 安韶山 An

doi:10.5846/stxb201304160723

Cited by 7 publications

(3 citation statements)

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“…Vegetation restoration measures are one of the important factors affecting the C, N and P cycle of plant-soil-microorganism systems [17]. Different vegetation restoration measures will break the balance of elements and substances in the original structure, thus leading to changes in the concentration and ecological stoichiometry of C, N and P [18,19]. Therefore, it is necessary to study the concentrations of C, N and P in plantsoil-microorganism systems and the ecological stoichiometry under different restoration measures in order to reveal the coupling relationship between nutrients and changes in ecosystem processes, especially for the restoration of degraded ecosystems [9,11,12].…”

Section: Introductionmentioning

confidence: 99%

Ecological Stoichiometric Characteristics of Plant–Soil–Microorganism of Grassland Ecosystems under Different Restoration Modes in the Karst Desertification Area

Song,

Xiong,

Chi

2023

Agronomy

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C, N and P are the key biogenic elements of terrestrial ecosystems, and their biogeochemical processes regulate nutrient cycling and play a key role in restoring degraded ecosystems. In this paper, the grassland ecosystem under artificial restoration measures (Dactylis glomerata (DG), Lolium perenne (LP), Lolium perenne + Trifolium repens (LT)), and the natural restoration measures (NG) in a typical karst plateau desertification control area of southwest China, were taken as the research object. The C, N, and P concentrations and the ecological stoichiometry of the plant–soil–microorganism system in grasslands under different restoration measures in the karst desertification area were explored. We established the following findings: (1) Compared with NG, the C, N and P concentrations of plants and soil in DG, LP and LT were higher, and LT was the highest. (2) The microbial biomass carbon (MBC), microbial biomass nitrogen (MBN) and microbial biomass phosphorus (MBP) concentrations in LT was also the highest. (3) The C:N ratio of plant and soil indicated that the N mineralization and nutrient release rate of DG, LP and LT were stronger than that of NG, and the plant growth of NG was most seriously limited by nitrogen. The N:P ratio in plant and soil indicated that the grassland was limited by P in the four treatments. (4) The result of correlation analysis showed that the cycling process of C, N and P in the plant–soil–microorganism system was coupled, and that the elements closely affected each other. In general, the effect of artificial restoration on a degraded ecosystem was relatively better than the natural restoration for increasing plant, soil and microbial nutrient concentrations, especially in the mixed-seed ecosystem of leguminous and gramineous forage. However, in the future, grassland management, appropriate N fertilizer or N-fixing plants and P fertilizer should be considered to improve the limitation of plant N and P, so as to realize the sustainable development of grasslands and the restoration of degraded ecosystems in the karst desertification control area.

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Section: Introductionmentioning

confidence: 99%

Ecological Stoichiometric Characteristics of Plant–Soil–Microorganism of Grassland Ecosystems under Different Restoration Modes in the Karst Desertification Area

Song,

Xiong,

Chi

2023

Agronomy

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“…Among them, soil microbial biomass is a reservoir of active soil nutrients and an indicator of soil material metabolism, which is closely related to soil nutrients and health status [11]. The higher the content of soil microbial biomass, the higher the activity level of the microbial community, and thus it can reflect the material cycling ability of the ecosystem to a certain extent [12]. Although soil microbial biomass only accounts for a small part of soil organic matter, it is the most active part [13], and its important components are soil microbial biomass carbon (MBC) and soil microbial biomass nitrogen (MBN).…”

Section: Introductionmentioning

confidence: 99%

Characterization of Soil Microbial Biomass Carbon and Nitrogen in Four Forest Types of Shushan Urban Forest Park

Wang

Cui

Liu

et al. 2023

Forests

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This study aimed to investigate the role of plantation forests and natural secondary forests in controlling soil physicochemical properties and microbial biomass in urban forest ecosystems. (1) Background: Urban forests provide numerous benefits to urban ecosystems, but the interaction between forest stands and soil properties in controlling soil microbial biomass carbon (MBC) and nitrogen (MBN) remains poorly understood. The objective of this study was to examine how different forest types (plantation forests and natural secondary forests) influence soil physicochemical properties and microbial biomass in urban forest ecosystems. (2) Methods: We conducted a study in Shushan Urban Forest Park, Hefei, China, utilizing redundancy analysis and linear regression analyses to identify key environmental factors affecting the microbial distribution and significant correlations between soil properties and microbial biomass. (3) Results: Plantation forests generally had lower pH, water content, and organic carbon and nutrient content than natural forests. Natural forests exhibited higher microbial biomass and nutrient cycling capacity. Soil depth and forest type have significant effects on soil properties and microbial biomass in both growing and dormant seasons, with practical implications for forest management and soil conservation in similar ecosystems. Soil water content (SWC), pH, total nitrogen (TN), total phosphorus (TP), and soil organic carbon (SOC) were identified as key factors affecting microbial carbon and nitrogen distribution during both growing and dormant seasons. Our study provides important insights into the role of forest stands and soil physicochemical properties in controlling soil microbial biomass in urban forest ecosystems. Effective forest management strategies should be developed to promote sustainable and resilient forest ecosystems. Future research should investigate the underlying mechanisms driving these relationships and focus on promoting sustainable and resilient urban forest ecosystems.

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“…Tian et al found that the C:N:P ratios of nine soil orders in China are influenced by vegetation types and human activities [14]. Previous studies on the impact of land use types on the ecological stoichiometry of soil carbon, nitrogen, and phosphorus mainly focus on different vegetation types [15,16], ecological restoration methods (such as converting farmland back to forests) [17], and vegetation succession [18]. However, there is still a lack of in-depth research on the effects of converting forests to tea plantations on the cycling of soil carbon, nitrogen, and phosphorus nutrients, as well as the nutrient demand limitations and changes in nutrient cycling within the forest soil ecosystem caused by tea plantation cultivation.…”

Section: Introductionmentioning

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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Effects of vegetation types on soil microbial biomass C, N, P on the Loess Hilly Area

Cited by 7 publications

References 0 publications

Ecological Stoichiometric Characteristics of Plant–Soil–Microorganism of Grassland Ecosystems under Different Restoration Modes in the Karst Desertification Area

Ecological Stoichiometric Characteristics of Plant–Soil–Microorganism of Grassland Ecosystems under Different Restoration Modes in the Karst Desertification Area

Characterization of Soil Microbial Biomass Carbon and Nitrogen in Four Forest Types of Shushan Urban Forest Park

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

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