Soil fertility under different forest types in the Helan and Liupan Mountain ranges of Ningxia Province

Lin, 姜林 Jiang; Zengchao, 耿增超 Geng; Wen, 张雯 Zhang; Xinxiang, 陈心想 Chen; Diao, 佘雕 She; Qiang, 张强 Zhang; Lele, 崔乐乐 Cui; Hongxiang, 王宏翔 Wang; Yongli, 郭永利 Guo

doi:10.5846/stxb201112081881

Cited by 2 publications

(1 citation statement)

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“…The main factors affecting soil pH are soil parent material, climate, vegetation, and human factors (Biro et al, 2013). The parent material of soil formation in the Helan Mountain area is mainly gray-calcium soil, which is alkaline, and gray-calcium meadow soil itself is often accompanied by salinization (Jiang et al, 2013). In addition, evaporation is extremely high in the study area, which eventually leads to alkaline residue and high pH of the original soil.…”

Section: Discussionmentioning

confidence: 99%

Limiting Factors and Countermeasures of the Ecological Restoration of the Dump of Open-Pit Coal Mine in the Helan Mountains

Liutong,

Changqing,

Junjiao

et al. 2023

Journal of Resources and Ecology

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In order to clarify the ecological restoration direction, this study investigated the limiting factors of the ecological restoration of the dump of Rujigou Open-pit Coal Mine in the Helan Mountain Nature Reserve from the aspects of climate, topography, and soil physicochemical properties. The main results are as follows: (1) In terms of climate, the main limiting factors in the study area were low precipitation (<200 mm) with uneven annual distribution, high evaporation (2000 mm), low temperature, less effective accumulated temperature, and large number of gale days (≥150 days). ( 2) The topographic limiting factors were steep slope (30°-36°) and long slope length (10-44 m).(3) In terms of soil, the main limiting factors were high contents of sand (73.40%±2.18%) and clay (13.21%±1.37%), low porosity (30.89%±0.83%), and low contents of total nitrogen (0.67±0.05 g kg -1 ), hydrolytic nitrogen (14.23±0.48 mg kg -1 ) and available phosphorus (2.81±0.44 mg kg -1 ). The limiting factors of the ecological restoration of the study area mainly included drought and water shortage, less effective accumulated temperature, large number of days of strong wind, steep slope, long slope length, and soil depletion. In view of the above limiting factors, countermeasures such as slope foot support, slope level arrest and consolidation, slope cover, plant measures, and muck improvement can be considered. This study provides a scientific basis and theoretical support for the selection of appropriate ecological restoration measures and improvement of restoration effectiveness for open-pit mine dumps in arid areas such as the Helan Mountains.

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Section: Discussionmentioning

confidence: 99%

Limiting Factors and Countermeasures of the Ecological Restoration of the Dump of Open-Pit Coal Mine in the Helan Mountains

Liutong,

Changqing,

Junjiao

et al. 2023

Journal of Resources and Ecology

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Soil Microbial Community Responds to Elevation Gradient in an Arid Montane Ecosystem in Northwest China

Yang

J²,

Wang

et al. 2022

Forests

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This study sought to clarify the composition of soil fungal and bacterial communities along an elevation gradient in an arid montane ecosystem as well as the influence of environmental factors (soil properties, climate, topography, and plant diversity) upon soil microbial community structures. Four vegetation types—montane desert steppe (mean elevation: 1761 m), montane shrub (mean elevation: 2077 m), subalpine coniferous forest (mean elevation: 2485 m), and subalpine shrub (mean elevation: 2903 m)—were sampled on the western slope of the Helan Mountains. The 16SrRNA gene and ITS1 were performed by single-molecule real-time (SMRT) sequencing with the PacBio sequencing platform. The Chao1 and Shannon–Wiener diversity of soil fungi and bacteria were more diverse in the soil of the lower elevation gradient compared to that of the upper one. Differences in abundance among phyla were found via One-way ANOVA(analysis of variance), yet the dominant soil fungal phyla (Ascomycota, Basidiomycota, and Mortierellomycota) and bacterial phyla (Proteobacteria, Acidobacteria, and Bacteroidetes) were the same across the elevation gradient. Pearson correlations and redundancy analysis (RDA) indicated that plant diversity (Shannon–Wiener diversity [H] and Margalef richness [D]), solar radiation, mean annual temperature, soil organic matter, soil moisture content, slope, mean annual precipitation, and elevation all significantly influenced the community composition of different soil fungal and bacterial phyla. Although plant diversity significantly affects fungal and bacterial diversity, the results imply that the influence of plant functional diversity on soil microbial community variation should not be ignored.

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Soil fertility under different forest types in the Helan and Liupan Mountain ranges of Ningxia Province

Cited by 2 publications

References 1 publication

Limiting Factors and Countermeasures of the Ecological Restoration of the Dump of Open-Pit Coal Mine in the Helan Mountains

Limiting Factors and Countermeasures of the Ecological Restoration of the Dump of Open-Pit Coal Mine in the Helan Mountains

Soil Microbial Community Responds to Elevation Gradient in an Arid Montane Ecosystem in Northwest China

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