光伏电站土壤微量元素有效含量化学计量对植被恢复的响应

武燕; 刘美英; 赵文静; 赵彬; 兴安; 卢立娜

doi:10.13961/j.cnki.stbctb.2024.06.005

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光伏电站土壤微量元素有效含量化学计量对植被恢复的响应

试验研究

- 光伏电站土壤微量元素有效含量化学计量对植被恢复的响应
- Response of Available Soil Trace Element Stoichiometry to Vegetation Restoration in Photovoltaic Power Station
- 水土保持通报 2024年44卷第6期页码：39-45
- 作者机构：
  
  1. 内蒙古农业大学草原与资源环境学院, 内蒙古自治区土壤质量与养分资源重点实验室/农业生态安全与绿色发展自治区高等学校重点实验室,内蒙古,呼和浩特,010011
  2. 鄂尔多斯市林业和草原事业发展中心,内蒙古,鄂尔多斯市,017000
- 作者简介：
- 基金信息：
  
  内蒙古自然科学基金项目“光伏电站土壤碳氮养分转化提升机制对植被恢复的响应”(2022MS04013);内蒙古农业大学基本科研业务费项目(BR22-13-04)
- DOI：10.13961/j.cnki.stbctb.2024.06.005
  中图分类号： S158.3;TM615
- 纸质出版：2024
- 稿件说明：
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武燕, 刘美英, 赵文静, 等. 光伏电站土壤微量元素有效含量化学计量对植被恢复的响应[J]. 水土保持通报, 2024,44(6):39-45.

Wu Yan, Liu Meiying, Zhao Wenjing, et al. Response of Available Soil Trace Element Stoichiometry to Vegetation Restoration in Photovoltaic Power Station[J]. Bulletin of Soiland Water Conservation, 2024, 44(6): 39-45.
武燕, 刘美英, 赵文静, 等. 光伏电站土壤微量元素有效含量化学计量对植被恢复的响应[J]. 水土保持通报, 2024,44(6):39-45. DOI： 10.13961/j.cnki.stbctb.2024.06.005.

Wu Yan, Liu Meiying, Zhao Wenjing, et al. Response of Available Soil Trace Element Stoichiometry to Vegetation Restoration in Photovoltaic Power Station[J]. Bulletin of Soiland Water Conservation, 2024, 44(6): 39-45. DOI： 10.13961/j.cnki.stbctb.2024.06.005.

摘要

[目的] 探究光伏电站不同植被类型下土壤有效微量元素含量及化学计量比，旨在为加速西部干旱区光伏电站植被恢复提供理论依据。[方法] 以内蒙古自治区呼和浩特市默特左旗光伏农林牧示范基地4种不同植被类型下的土壤为研究对象，分析不同植被土壤有效微量元素及其生态化学计量。选取天然植被、樟子松、黄芪、苜蓿4个不同植被类型测定0—20，20—40 cm土层养分状况。[结果] ①在4种植被类型中，土壤微量元素有效含量存在显著差异，且微量元素有效含量均较低。②4种植被类型下，土壤微量元素有效含量表现为：黄芪样地>苜蓿样地>樟子松样地>天然植被样地。③研究区土壤微量元素有效含量化学计量为：Fe∶Mn为0.96

Fe∶Cu为31.95，Fe∶Zn为4.07，Mn∶Cu为33.50，Mn∶Zn为4.30，Cu∶Zn为0.15。④研究区土壤微量养分表现为Fe

Cu缺乏，且Fe元素为主要的微量元素限制因子，Mn

Cu元素为次要限制因子。[结论] 在该区域进行植被恢复的同时，要适当添加微肥，在一定程度上可提高土壤肥力，并为研究区植被恢复提供更充足的微量养分。

Abstract

[Objective] The content and stoichiometric ratio of available trace elements in soil under different vegetation types in photovoltaic power plants were explored to provide a theoretical basis for accelerating the vegetation restoration of photovoltaic power stations in arid areas of Western China. [Methods] The soil of four vegetation types in the photovoltaic agriculture

forestry and animal husbandry demonstration base of Tumd Left Banner in Hohhot City

Inner Mongolia was taken as the research object

and the available trace elements and ecological stoichiometry characteristics of different vegetation soils were analyzed. Four vegetation types

namely natural vegetation

Pinus sylvestris

Astragalus membranaceus

and Medicago sativa

were selected to determine the nutrient status of the 0—20 cm and 20—40 cm soil layers. [Results] ① There were significant differences in the soil available trace elements among the four vegetation types

and the content of available trace elements was low. ② For the four vegetation types

the content of available trace elements in soil followed the order A. membranaceus plot > M. sativa plot > P. sylvestris plot > natural vegetation plots. ③ The chemical ratios of the soil trace element effective contents in the study area were 0.96

31.95

4.07

33.50

4.30 and 0.15 for Fe∶Mn

Fe∶Cu

Fe∶Zn

Mn∶Cu

Mn∶Zn and Cu∶Zn

respectively. ④ The soil trace nutrients in the study area were Fe

and Cu deficiencies; Fe was the main trace element limiting factor

and Mn and Cu were secondary limiting factors. [Conclusion] At the same time as vegetation restoration in this area

it is necessary to add micro-fertilizer appropriately

which can improve soil fertility to a certain extent and provide sufficient micronutrients for vegetation restoration in the study area.

关键词

Keywords

references

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