1. 中国地质大学(武汉)盆地水文过程与湿地生态恢复学术创新基地,武汉,430074
2. 中国地质大学(武汉)湿地演化与生态恢复湖北省重点实验室,武汉,430074
3. 中国地质大学(武汉)生态环境研究所,武汉,430074
4. 新疆农业科学院,乌鲁木齐,830091
5. 武汉伟特伦生态环境研究所,武汉,430079
6. 湖北神农架国家湿地公园管理局科研所, 湖北 神农架林区大九湖乡,442421
[ "斯南雍茜(1993-),女,硕士研究生,主要从事湿地生态研究。E-mail:1249918248@qq.com" ]
纸质出版:2020
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斯南雍茜, 葛继稳, 李愈, 等. 神农架大九湖亚高山典型泥炭湿地土壤养分特征分析[J]. 水土保持学报, 2020,34(5):321-326.
SINAN Yongxi, GE Jiwen, LI Yu, et al. Soil Nutrient Characteristics of Typical Sub-alpine Peat Wetland in Dajiuhu of Shennongjia[J]. 2020, 34(5): 321-326.
斯南雍茜, 葛继稳, 李愈, 等. 神农架大九湖亚高山典型泥炭湿地土壤养分特征分析[J]. 水土保持学报, 2020,34(5):321-326. DOI: 10.13870/j.cnki.stbcxb.2020.05.044.
SINAN Yongxi, GE Jiwen, LI Yu, et al. Soil Nutrient Characteristics of Typical Sub-alpine Peat Wetland in Dajiuhu of Shennongjia[J]. 2020, 34(5): 321-326. DOI: 10.13870/j.cnki.stbcxb.2020.05.044.
基于湖北省神农架国家公园大九湖亚高山典型泥炭湿地土壤总有机碳、总氮、总磷、铵态氮、有效磷、速效钾养分含量进行时间(春、夏、秋、冬)和空间(表层15 cm、中层30 cm、底层45 cm)特征分析。结果表明:(1)该区域土壤各样分以及pH、Eh、容重均满足正态分布,其中有效磷、速效钾为中强变异性,均值为31.33,71.2 mg/kg,总有机碳、总磷、铵态氮、pH、Eh、容重为中弱变异性,均值为419.2,1.56 g/kg和67.57 mg/kg,5.33,104.4,0.155 g/kg,总氮为弱变异性,均值为20.13 g/kg。(2)土壤总有机碳在季节以及深度变化上均不存在显著差异,总氮与总磷在首层与其余2层存在显著差异,在季节上总氮在首层存在季节差异,总磷在首、中层存在显著差异,土壤养分仅速效钾与首层和其余2层存在显著差异。(3)土壤有机碳、总磷、铵态氮与总氮、速效钾、总磷与铵态氮呈显著正相关,总有机碳与土壤容重、有效磷与Eh,pH与Eh呈显著负相关。(4)研究区土壤总有机碳与总氮较高于我国其余泥炭湿地,随着纬度升高土壤有机碳含量呈现降低的趋势。
Based on the analysis of soil total organic carbon
total nitrogen
total phosphorus
ammonium nitrogen
available phosphorus
and available potassium in the typical sub-alpine peat wetland of Dajiuhu in Shennongjia National Park of Hubei Province
the temporal (spring
summer
autumn
and winter) and spatial (surface 15 cm
middle 30 cm
and bottom 45 cm) characteristics were analyzed. The results showed that: (1) The distribution of soil nutrient components
pH
Eh
and bulk density was normal
in which Apo. and Aph. K were medium and strong variability
the mean value was 31.33 and 71.2 mg/kg. TOC
TP
An.
pH
Eh
and bulk density were medium and weak variability
and the mean value was 419.2
1.56 g/kg
67.57 mg/kg
5.33
104.4
0.155 g/kg; TN is weakly variable
the mean value was 20.13 g/kg. (2) There was no significant difference in soil TOC in season and depth. There was significant difference between TN and TP in the first layer and the other two layers. There was seasonal difference between TP in the first layer and TP in the first and middle layers. Only Aph. was significantly different from the first and the other two layers. (3) TOC
TP
An. and TN
Apo.
TP
and An. showed significant positive correlations. TOC and soil bulk density
Apo. and Eh
pH and Eh
showed significant negative correlations. (4) TOC and TN in the study area were higher than other peat wetlands in China
and the content of soil organic carbon decreased with the increase of latitude.
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