| 赵心语,王春玲,陈小平,王婷婷,胡 杰.太原市滨河东路绿地土壤养分分布及肥力质量评价[J].林业调查规划,2024,49(4):207-214 |
| 太原市滨河东路绿地土壤养分分布及肥力质量评价 |
| Soil Nutrient Distribution and Fertility Quality Evaluation ofBinhe East Road Greenbelt in Taiyuan |
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| DOI： |
| 中文关键词: 土壤养分 肥力质量 空间分布 熵权法 滨河绿地 太原市 |
| 英文关键词: soil nutrient fertility quality spatial distribution entropy weight method riverside green
space Taiyuan City |
| 基金项目:国家自然科学基金项目(NO.32001369). |
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| 中文摘要: |
| 滨河东路是太原市纵贯南北的城市主干道,其路侧林带是城市绿化植物生长的重要基础,也
是水陆生态系统之间的重要过渡区。为了解太原市滨河东路绿地土壤的肥力质量和养分特征,对
其路侧绿地进行实地调查采样,对比分析pH、电导率、总氮、总磷、有机质、硝氮、铵氮等土壤理化指
标,并运用熵权法对土壤肥力质量进行评价。结果表明,太原市滨河东路绿地土壤整体为碱性,属
于非盐化土,有机质、总氮、总磷含量均为高级水平,铵氮、硝氮含量为低级水平。pH、电导率为低
程度变异,其他土壤理化指标均为中、高程度变异,存在着明显的空间变异性;从沿道路方向的空间
分布来看,总氮、硝氮、有机质含量变化幅度较大,总磷、铵氮含量及电导率的变化较为平缓,硝氮、
总氮、总磷含量在B样区均较高,C样区有机质含量显著高于其他样区,F样区铵氮含量较高;从垂
直道路方向的空间分布来看,随着距道路距离的增大,硝氮、总氮、总磷含量均呈先上升后降低的趋
势,有机质含量、电导率呈增大的趋势,铵氮含量呈先增大后减小再增大的趋势。各理化指标的高
值均出现在距道路20~40 m的断面。土壤综合肥力质量的平均值为0.239,土壤肥力质量整体较
低,随着与道路距离的增大,进入自然保护区之后,呈上升趋势。总体来看,研究样地肥力质量整体
较差,受人为因素影响大,滨河东路绿地不同区域土壤养分间的差异可为土壤改良提供数据支撑,
因地制宜地对路侧绿地土壤的养分调控进行精准管理。 |
| 英文摘要: |
| Binhe East Road is the main urban road running through the north and south of Taiyuan. Its
roadside green space is an important foundation for the growth of urban greening plants, and also an important
transition zone between water and land ecosystems. In order to understand the soil fertility quality and nutrient characteristics of the green belt of Binhe East Road in Taiyuan city, field investigation and
sampling were carried out on the green belt of the road side, and soil physical and chemical indexes such
as pH, electrical conductivity, total nitrogen, total phosphorus, organic matter, nitrate and ammonia nitrogen
were compared and analyzed, and the soil fertility quality was evaluated by entropy weight method.
The results showed that the soil of Binhe East Road in Taiyuan was alkaline and non-salinized. The organic
matter, total nitrogen and total phosphorus were all at high level, while ammonia and nitrate nitrogen
were at low level. pH and electrical conductivity showed low variation, while other soil physical and
chemical indexes showed medium high variation with obvious spatial variability. In terms of the spatial
distribution along the road direction, the variation range of total nitrogen, nitrate nitrogen and organic
matter was large, while the variation of total phosphorus, ammonia nitrogen and electrical conductivity
was relatively gentle. The contents of nitrate nitrogen, total nitrogen and total phosphorus were higher in
sample B, organic matter content in sample C was significantly higher than other sample areas, and ammonia
nitrogen content in sample F was higher. In terms of the spatial distribution of vertical road direction,
with the increase of the distance from the road, nitrate, total nitrogen and total phosphorus increased
first and then decreased, organic matter and electrical conductivity increased, and ammonia nitrogen
increased first, then decreased and then increased. On the whole, the high values of physical and
chemical indexes were all in the section 20-40 m away from the road. The average value of the comprehensive
soil fertility quality was 0.239. The overall soil fertility quality was relatively low. With the increase
of the distance from the road, the soil fertility quality showed an upward trend after entering the
natural area. On the whole, the fertility quality of the study sample land was poor and was greatly affected
by human factors. The differences of soil nutrients in different areas of Binhe East Road green land could
provide data support for soil improvement and carry out precise management of soil nutrients regulation in
green land along the road according to local conditions. |
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