SU Zhitun,HE Tonghui,QIAO Bin,et al.Characteristics of Soil Particle Size Distribution in the Yellow River Tidal Flat of Yinchuan Plain[J].Northern Horticulture,2018,42(15):115-122.[doi:10.11937/bfyy.20174215]
银川平原黄河滩涂湿地土壤粒径分布特征
- Title:
- Characteristics of Soil Particle Size Distribution in the Yellow River Tidal Flat of Yinchuan Plain
- 文献标志码:
- A
- 摘要:
- 黄河的多沙性影响了黄河滩涂湿地的形成，不同发育程度的滩涂湿地之间其土壤粒径存在差异。为研究银川平原滩涂湿地的土壤粒径分布状况与分形特征，选取吴忠黄河湿地、银川黄河湿地、平罗湿地以及黄沙古渡4个区域为研究对象，采用野外采样、室内实验与数据分析相结合的方法，探讨土壤的粒径特征与滩涂湿地发育的关系。结果表明：1)除黄沙古渡外，滩涂湿地土壤颗粒组成在0~10、10~20、20~30、30~40、40~50 cm土层间差异性较小（P<0.05），黄沙古渡的土壤颗粒组成则是在垂直方向上具有显著的差异（P<0.05）；2)滩涂湿地其表层（0~20 cm）的土壤颗粒组成与其所处黄河上下游的位置无关，与其发育程度有关，发育程度较高的滩涂湿地土壤细粘粒、粗粘粒含量较高；3)银川平原黄河滩涂湿地土壤颗粒与电导率、pH无显著相关性，土壤有机碳与土壤粗粉粒呈极显著负相关性（P<0.01）；4)平罗湿地、银川黄河湿地、吴忠黄河湿地以及黄沙古渡4个不同滩涂湿地的土壤分形维数分别为2.74、2.64、2.56、2.34，处于中等水平；5)土壤分形维数与土壤细粘粒、粗粘粒具有极显著的正相关性，与细砂粒呈极显著负相关（P<0.01），可以很好的反映土壤颗粒分布特征，对于滩涂湿地的发育具有一定的指示作用。
- Abstract:
- The sand in the Yellow River has affected the formation of tidal flat wetlands.There are differences in soil particle size between tidal flat wetlands with different developmental levels.To study the wetland soil particle size distribution and fractal characteristics of Yinchuan plain,Wuzhong Yellow River wetland,Yinchuan Yellow River wetland,Pingluo wetland and Huangsha Gudu,four wetland area were chosen as the researched objects.Using the method of field sampling,laboratory experiment,data analysis,to reveal the relationship between soil particle size characteristics and wetland development.The results showed that：1)in addition to the Huangsha Gudu,the soil particle composition of beach wetland had small difference between the layers 0-10,10-20,20-30,30-40 and 40-50 cm(P<0.05).It had significant difference in vertical direction of Huangsha Gudu(P<0.05)；2) the composition of soil particles in the surface soil (0-20 cm) of the beach wetland had nothing to do with the location of the upper and lower reaches of the Yellow River,which was related to the degree of development.The wetland with high development level had a higher content of fine clay and coarse clay；3) there was no significant correlation between soil particles and electrical conductivity and pH in the Yellow River wetland of Yinchuan plain,and there was a significant negative correlation between soil organic carbon and soil coarse grain (P<0.01)；4) the soil fractal dimensions of Pingluo wetland,Yinchuan Yellow River wetland,Wuzhong Yellow River wetland,and Huangsha Gudu wetland were 2.74,2.71,2.65,and 2.24,respectively,which were at a medium level；5) the fractal dimension of soil had a significant positive correlation with soil clay (P<0.01).It could well reflect the distribution characteristics of soil particles and soil nutrient status,and it had a certain role in the development of the wetland in the mudflat.
相似文献/References:
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[2]王月玲,许浩,安钰,等.宁南黄土区典型人工林下土壤粒径分布分形特征与养分关系研究[J].北方园艺,2023,(24):81.[doi:10.11937/bfyy.20230515]
WANG Yueling,XU Hao,AN Yu,et al.Relationship Between Fractal Characteristics of Soil Particle Size Distribution and Soil Nutrients Under Typical Plantations in Loess Region of Southern Ningxia[J].Northern Horticulture,2023,(15):81.[doi:10.11937/bfyy.20230515]
备注/Memo
第一作者简介：苏芝屯（1992-），女，硕士研究生，研究方向为恢复生态。E-mail：suhzitun@163.com.责任作者：何彤慧（1964-），女，教授，现主要从事湿地生态恢复与检测及生态评估等研究工作。E-mail：hetonghui@163.com.基金项目：国家自然科学基金资助项目（41761102）。收稿日期：2018-03-19