Characteristics of soil aggregates and organic carbon content in ecological restoration slope of Xiangjiaba Hydropower Station
Author:
Affiliation:

1.College of Biology and Pharmacy,China Three Gorges University,;2.Engineering Research Center of cement based Ecological Restoration TechnologyChina Three Gorges University

Clc Number:

S151.9

  • Article
  • | |
  • Metrics
  • |
  • Reference [38]
  • |
  • Related
  • |
  • Cited by
  • | |
  • Comments
    Abstract:

    [Objective] To explore the effects of ecological engineering restoration technology on soil aggregate stability and organic carbon distribution, and to provide scientific basis for improving soil structure stability and carbon sink function of different ecological restoration slopes in Xiangjiaba Hydropower Station. [Method] In this paper, four different ecological restoration slopes of Xiangjiaba Hydropower Station were studied: vegetation concrete (CBS), thick base material spraying(TB), frame beam covering soil (FB), and external soil spraying (SS). The distribution and stability of soil aggregates and the characteristics of organic carbon content were studied by wet sieve method two natural restoration slopes of natural forest (NF) and abandoned land (AS) as control. [Result] The results show that: (1) The soil of each slope is dominated by large aggregates > 0.25 mm. The content of macroaggregates in natural forest is the highest (81.83%). The vegetation concrete and thick base material slope are the second, and the content of waste residue land is the lowest, only 55.19 %. The MWD and GMD of the four artificial ecological restoration slopes are lower than those of the natural forest and higher than those of the waste residue land. The value of the thick substrate slope is the highest, which is 2.96 mm and 1.47 mm, respectively. The fractal dimension ( D ) of the soil spray seeding and slag field is significantly higher (p< 0.05) than the other four slopes. (2) The organic carbon content of large aggregates with particle size > 0.25 mm is the highest in all ecological restoration slope measures. In addition to soil spray seeding and waste residue land, other restoration measures and natural forests have the largest contribution rate of > 2mm soil aggregates. (3) Correlation analysis shows that soil SOC is significantly positively correlated with MWD, GMD and R0.25(p< 0.01), > 5mm and 5-2mm aggregates are significantly positively correlated with soil MWD, GMD, R0.25 and SOC (p< 0.01), and significantly negatively correlated with D (p< 0.01). [Conclusion] In the study area of Xiangjiaba Hydropower Station, the improvement effect of thick substrate spraying technology and vegetation concrete ecological restoration technology on soil structure and organic carbon pool is close to that of natural forest, and the improvement effect of external soil spraying technology is poor.

    Reference
    [1] 李桂媛, 陈静, 段中元, 等. 水电建设区的生态环境监测与评价——以向家坝水电站为例[J]. 长江流域资源与环境, 2013, 22(12):1573-1580.
    [2] Wang X Z, Sun Y Z. Application of anchor frame beam in expansive soil slope[J]. Modelling Measurement and Control B, 2017, 86(1):115-125.
    [3] Raiesi Shahrekord U. A minimum data set and soil quality index to quantify the effect of land use conversion on soil quality and degradation in native rangelands of upland arid and semiarid regions[J].Ecological Indicators, 2017,75(Apr.): 307-320.
    [4] Hartley W, Riby P, Waterson J, et al. Effects of three different biochars on aggregate stability, organic carbon mobility and micronutrient bioavailability[J]. Journal of Environment Management, 2016, 181: 770-778.
    [5] Zhao J S, Chen S, Hu R G, et, al. Aggregate stability and size distribution of red soils under different land uses integrally regulated by soil organic matter, and iron and aluminum oxides[J]. Soil and Tillage Research, 2017, 167:73-79.
    [6] Li J Y, Yuan X L, Ge L L, et, al. Rhizosphere effects promote soil aggregate stability and associated organic carbon sequestration in rocky areas of desertification[J]. Agriculture Ecosystems Environment, 2020, 304.
    [7] 宋小艳, 王长庭, 胡雷, 等. 若尔盖退化高寒草甸土壤团聚体结合有机碳的变化[J]. 生态学报, 2022, 42(04):1538-1548.
    [8] Six J, Paustian E. Aggregate-associated soil organic matter as an ecosystem property and a measurement tool[J]. Soil Biology Biochemistry, 2014, 68: A4-A9.
    [9] 徐慧, 吕庆, 杨雨荷, 等. 边坡植被重建效果评价:研究进展与展望[J]. 生态学杂志, 2022, 41(03):589-596.
    [10] 何园球, 沈其荣, 王兴祥. 红壤丘岗区人工林恢复过程中的土壤养分状况[J]. 土壤, 2003(03):222-226.
    [11] Qiao L, Li Y, Song Y, et al. Effects of vegetation restoration on the distribution of nutrients, glomalin-related soil protein, and enzyme activity in soil aggregates on the Loess Plateau, China[J]. Forests, 2019, 10(9): 796.
    [12] Gu X, Fang X, Xing W H, et, al. Vegetation restoration stimulates soil carbon sequestration and stabilization in a subtropical area of southern China[J]. Catena, 2019, 181: 104098-104098.
    [13] Huang Y Z, Xin Z B, Ran L S, et, al. Topsoil carbon sequestration of vegetation restoration on the Loess Plateau[J]. Ecological Engineering, 2022, 177.
    [14] 孙涛, 刘艺杉, 孙崇玉, 等.石灰岩山地植被恢复对土壤水稳性团聚体的影响[J]. 草业科学, 2018,35(06):1361-1367.
    [15] 张钦弟, 刘剑荣, 杨磊, 等. 半干旱黄土区植被恢复对土壤团聚体稳定性及抗侵蚀能力的影响[J/OL].生态学报, 2022(22):1-12[2022-11-16].
    [16] Zhong Z, Wu S, Lu X, et al. Organic carbon, nitrogen accumulation, and soil aggregate dynamics as affected by vegetation restoration patterns in the Loess Plateau of China[J]. Catena, 2021, 196:104867.
    [17] 陈月明, 裴隆翠, 崔钢, 等. 不同水土保持植被对典型黑土微团聚体稳定性的影响[J]. 东北林业大学学报, 2019, 47(06):26-30.
    [18] 中国科学院南京土壤研究所土壤物理研究室编. 土壤物理性质测定法[M]. 北京:科学出版社, 1978.
    [19] 鲍士旦. 土壤农化分析 第3版[M]. 北京:中国农业出版社, 2000.
    [20] 季波, 时龙, 徐金鹏等. 宁夏典型天然草地土壤团聚体稳定性及其有机碳分布特征[J]. 生态学报, 2021, 41(19): 7669-7678.
    [21] 王冰, 张鹏杰, 张秋良. 不同林型兴安落叶松林土壤团聚体及其有机碳特征[J]. 南京林业大学学报(自然科学版), 2021, 45(03): 15-24.
    [22] 赵晶, 刘美英, 郝孟婕等. 植被恢复对干旱区生态光伏电站土壤团聚体组成及有机碳的影响[J]. 水土保持研究, 2022,29(05): 137-143.
    [23] 王心怡, 周聪, 冯文瀚等. 不同林龄杉木人工林土壤团聚体及其有机碳变化特征[J]. 水土保持学报, 2019, 33(05): 126-131.
    [24] Zeng Q, Darboux F, Man C, et al. Soil aggregate stability under different rain conditions for three vegetation types on the Loess Plateau (China)[J]. Catena, 2018, 167: 276-283.
    [25] 严雨洁, 夏露, 赵冰琴等. 向家坝工程扰动区不同修复类型边坡土壤养分及土壤酶活性特征[J]. 长江流域资源与环境, 2020, 29(09): 2005-2015.
    [26] 刘梦云, 吴健利, 刘丽雯等. 黄土台塬土地利用方式对土壤水稳性团聚体稳定性影响[J]. 自然资源学报, 2016, 31(09): 1564-1576.
    [27] 张艳, 刘彦伶, 李渝等. 喀斯特石漠化地区土地利用方式对土壤团聚体稳定性及其有机碳分布特征的影响[J]. 土壤通报, 2021, 52(06): 1308-1315.
    [28] 李文龙, 刘美英, 李雪等. 植被恢复对采煤沉陷区土壤团聚体稳定性的影响[J]. 煤炭科学技术, 2022, 50(11): 222-229.
    [29] 周明涛, 许文年, 夏栋. 向家坝水电站工程扰动区不同类型边坡土壤酸碱度与肥力分析[J]. 应用生态学报, 2010, 21(04): 1031-1037.
    [30] 杜祥运, 许文年, 夏振尧. 向家坝工程扰动边坡微生物群落功能多样性分析[J]. 人民长江, 2016, 47(21): 20-24.
    [31] 徐红伟, 吴阳, 乔磊磊等. 不同植被带生态恢复过程土壤团聚体及其稳定性——以黄土高原为例[J]. 中国环境科学, 2018, 38(06): 2223-2232.
    [32] 田云国. 旅游干扰对太原万柏林生态园土壤团聚体稳定性及有机碳分布的影响[J]. 土壤通报, 2021, 52(06): 1316-1322.
    [33] 陈海, 朱大运, 陈浒. 石漠化地区土地利用方式对土壤团聚体稳定性及有机碳的影响[J]. 中国岩溶, 2021, 40(02): 346-354.
    [34] 程曼, 朱秋莲, 刘雷等. 宁南山区植被恢复对土壤团聚体水稳定及有机碳粒径分布的影响[J]. 生态学报, 2013, 33(09): 2835-2844.
    [35] 安韶山, 张玄, 张扬等. 黄土丘陵区植被恢复中不同粒级土壤团聚体有机碳分布特征[J]. 水土保持学报, 2007(06): 109-113.
    [36] 潘蕊蕊, 李小雁, 胡广荣等. 青海湖流域季节性冻土区坡面土壤有机碳分布特征及其影响因素[J]. 生态学报, 2020, 40(18): 6374-6384.
    [37] 周军, 陈舰, 郝国鹏. 银合欢用于白鹤滩水电站渣场边坡绿化的研究[J].水电与新能源, 2021, 35(02): 46-49+78.
    [38] 唐亚, 谢瑶, 乔雪. 新银合欢在四川盆地高速公路边坡防护中的应用[J]. 中国水土保持, 2022(06): 23-25.
    Related
    Cited by
    Comments
    Comments
    分享到微博
    Submit
Get Citation
Share
Article Metrics
  • Abstract:109
  • PDF: 513
  • HTML: 0
  • Cited by: 0
History
  • Received:April 24,2023
  • Revised:May 30,2023
  • Adopted:May 31,2023
  • Online: November 09,2023