Effects of Tree Species and Soil Enzyme Activities on Soil Nutrients in The Dryland Plantations

Li, Yage; Han, Chun; Sun, Shan; Zhao, Changming

doi:10.21203/rs.3.rs-681222/v1

Cited by 5 publications

(2 citation statements)

References 58 publications

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“…The contents of soil mineral elements include potassium (K + ), calcium (Ca 2+ ), sodium (Na + ), magnesium (Mg 2+ ), iron (Fe 3+ ), copper (Cu 2+ ), zinc (Zn 2+ ), cadmium (Cd 2+ ), chromium (Cr 2+ ) and lead (Pb 2+ ) were determined by atomic absorption spectroscopy method after digestion according to the method described by Li et al [ 26 ] The contents of soil mineral elements were measured by TRACE AI1200 atomic absorption spectrometer (Canada Aurora, Vancouver, BC, Canada).…”

Section: Methodsmentioning

confidence: 99%

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Gong

Hou

Liu

et al. 2022

IJERPH

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The current research was aimed to study the effects of different land use types (LUT) and soil depth (SD) on soil enzyme activity, metal content, and soil fungi in the karst area. Soil samples with depths of 0–20 cm and 20–40 cm were collected from different land types, including grassland, forest, Zanthoxylum planispinum land, Hylocereus spp. land and Zea mays land. The metal content and enzyme activity of the samples were determined, and the soil fungi were sequenced. The results showed that LUT had a significant effect on the contents of soil K, Mg, Fe, Cu and Cr; LUT and SD significantly affected the activities of invertase, urease, alkaline phosphatase and catalase. In addition, Shannon and Chao1 index of soil fungal community was affected by different land use types and soil depths. Ascomycota, Basidiomycota and Mortierellomycota were the dominant phyla at 0–20 cm and 20–40 cm soil depths in five different land types. Land use led to significant changes in soil fungal structure, while soil depth had no significant effect on soil fungal structure, probably because the small-scale environmental changes in karst areas were not the dominant factor in changing the structure of fungal communities. Additionally, metal element content and enzyme activity were related to different soil fungal communities. In conclusion, soil mineral elements content, enzyme activity, and soil fungal community in the karst area were strongly affected by land use types and soil depths. This study provides a theoretical basis for rational land use and ecological restoration in karst areas.

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Section: Methodsmentioning

confidence: 99%

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Gong

Hou

Liu

et al. 2022

IJERPH

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“…Currently, there is a multitude of studies on soil nutrients and enzyme activities, such as the effects of changes in different land-use types [22], fertilization models [23], biochar and straw mulching [24], tree species and enzyme activities [25] on soil nutrients. Planting patterns lead to differences in soil environmental factors, which in turn, affect soil aggregate nutrients and enzyme activities.…”

Section: Introductionmentioning

confidence: 99%

Effects of Planting Patterns on Soil Aggregates and Enzyme Activities in Rocky Desertification Areas of Karst Plateau Mountains

Yang¹,

Zhu²,

Chen³

2022

Pol. J. Environ. Stud.

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Soil aggregate characteristics and enzyme activities are key to the sustainable development of soil quality management. However, there are presently few studies on soil aggregate nutrients, enzyme activities, and their driving factors in areas with karst rocky desertification. As such, this study investigated the effects of planting patterns on soil aggregate nutrients and soil enzyme activities under six typical planting patterns (walnut, Rosa roxburghii Tratt, ryegrass, walnut-Rosa roxburghii Tratt, Rosa roxburghii Tratt-ryegrass and walnut-ryegrass) in the karst rocky desertification area of plateau mountains. The results indicated that: (1) there were significant differences in soil aggregate nutrients and soil enzyme activities among the different plots, when compared to traditional farmland, the increase in the aggregate nutrient content and soil enzyme activities was most noticeable in walnut-Rosa roxburghii Tratt, Rosa roxburghii Tratt-ryegrass, and walnut-ryegrass, and the nutrients gradually increased as the aggregate particle size decreased. The maximum C:N and C:P ratios were measured in the 0.25-2 mm aggregates, while the maximum N:P ratios was measured occurred in the <0.053 mm aggregates. (2) The stoichiometric ratios had different degrees of relevance associated with the aggregate nutrients, TN and C:N, SOC and C:P, and TP and N:P showed extremely significant linear correlations. Moreover, a significant correlation also occurred between enzyme activity and aggregate nutrients, particularly in macroaggregates. (3) Soil physicochemical properties, such as the soil total porosity, capillary water holding capacity, saturated hydraulic conductivity, bulk density and pH, had a direct influence on enzyme activity, therefore, the soil condition can be improved by changing the planting patterns to promote enzyme activity. These findings are helpful for the optimal allocation of forest and grass for the comprehensive control of karst rocky desertification.

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Effects of Different Afforestation Years on Soil Properties and Quality

Yao

Fusen

et al. 2023

Forests

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As an important means of curbing soil degradation, afforestation has a profound impact on regional soil properties and quality. However, it is still unclear regarding how to conduct a systematic assessment of soil properties and soil quality and the impact of vegetation characteristics and plant functional traits in leguminous plantations with different afforestation years in drylands. Therefore, we investigated the vegetation characteristics and determined the functional traits of leaves and roots and the soil physicochemical properties of Caragana korshinskii plantations with 13, 35, and 55 years. The results showed that tree height; crown diameter (CD); root dry matter content; root water content; soil clay, silt, and sand contents; bulk density (BD); soil water content; soil organic carbon (SOC); total nitrogen (TN); available nitrogen; total phosphorus (TP); available phosphorus (AP); and soil quality index (SQI) changed significantly with an increase in afforestation years. Although the specific leaf area did not show a significant variation, it had a significant negative effect on soil properties and SQI, except for soil sand and BD. Soil sand and BD decreased with the afforestation succession, but the succession pattern of soil clay, silt, SOC, TN, TP, and AP was 13 years < 35 years < 55 years, and SQI increased from 0.20 (13 years) to 0.77 (55 years). This indicated that long-term legume afforestation led to the transformation of soil texture from silty loam to silt and significantly improved the soil properties and quality in the study area.

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Effects of Tree Species and Soil Enzyme Activities on Soil Nutrients in The Dryland Plantations

Cited by 5 publications

References 58 publications

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Effects of Different Land Use Types and Soil Depths on Soil Mineral Elements, Soil Enzyme Activity, and Fungal Community in Karst Area of Southwest China

Effects of Planting Patterns on Soil Aggregates and Enzyme Activities in Rocky Desertification Areas of Karst Plateau Mountains

Effects of Different Afforestation Years on Soil Properties and Quality

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