文章摘要
赵英, 郭旭新, 樊会芳, 高志永.不同灌溉方式对猕猴桃园土壤团聚体结构和养分的影响[J].水土保持学报,2021,35(3):320~325
不同灌溉方式对猕猴桃园土壤团聚体结构和养分的影响
Effects of Different Irrigation Methods on Soil Aggregate Structure and Nutrients in Kiwifruit Orchard
投稿时间:2020-12-24  
DOI:10.13870/j.cnki.stbcxb.2021.03.044
中文关键词: 地面灌溉  微喷灌  猕猴桃  土壤团聚体
英文关键词: surface irrigation  micro-sprinkler irrigation  kiwifruit  soil aggregates
基金项目:GEF项目及陕西省林业厅项目(陕林策字[2017]120号);杨凌职业技术学院自然科学研究项目(A2018018)
作者单位E-mail
赵英1, 郭旭新1, 樊会芳1, 高志永2 1. 杨凌职业技术学院水利工程分院, 陕西 杨凌 712100

2. 西安理工大学西北旱区生态水利工程国家重点实验室
, 西安 710048 
570473637@qq.com 
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中文摘要:
      为探究不同灌溉方式对猕猴桃园土壤结构和养分的影响,2017—2019年在陕西杨凌猕猴桃种植园布设地面灌溉、微喷灌2种处理,测定0—50 cm土层的土壤团聚体结构和有机质、碱解氮、速效磷和速效钾的含量,分析不同灌溉方式下土壤团聚体结构和养分的差异。结果表明:在0—50 cm土层,地面灌溉处理土壤中粒径分别为>5.0,2.0~5.0,1.0~2.0,0.5~1.0,0.25~0.5,<0.25 mm的颗粒在不同土层中的分布均匀程度高于微喷灌处理,2种灌溉方式下均以<0.25 mm的土壤颗粒分布最为均匀;微喷灌处理土壤中粒径>0.25 mm的水稳性大团聚体含量显著高于地面灌溉处理,土壤团聚体的平均质量直径(MWD)、几何平均直径(GMD)高于地面灌溉,而分形维数(D)低于地面灌溉,土壤氮磷钾总含量高于地面灌溉。微喷灌有利于保持猕猴桃园土壤结构的稳定性和土壤肥力,能促进土壤的可持续发展,是成龄猕猴桃园适宜的灌溉方式。
英文摘要:
      In order to explore the effects of different irrigation methods on soil structure and nutrients in kiwifruit orchard, two treatments of surface irrigation and micro-sprinkler irrigation were applied in the kiwifruit orchard of Yangling, Shaanxi Province from 2017 to 2019. The structure of soil aggregates and the contents of organic matter, available nitrogen, available phosphorus and available potassium in 0-50 cm soil layer were determined. The results showed that in 0-50 cm soil layer, the distribution uniformities of the soil particles size of >5.0, 2.0~5.0, 1.0~2.0, 0.5~1.0, 0.25~0.5, <0.25 mm in different soil layers under surface irrigation were higher than those under micro-sprinkler irrigation, and the grain of <0.25 mm was the most uniform in the two irrigation methods. The content of water-stable aggregates (> 0.25 mm) in soil under micro-irrigation was significantly higher than that under surface irrigation. The mean weight diameter (MWD) and geometric mean diameter (GMD) of soil aggregates under micro-sprinkler irrigation were higher than those under surface irrigation, while the fractal dimension (D) was lower than that under surface irrigation. The total contents of N, P and K in soil under micro-sprinkler were higher than those under surface irrigation. Micro-sprinkler irrigation could maintain the stability of soil structure and soil fertility, and promote the sustainable development of soil. It is a suitable irrigation method for mature kiwifruit orchard.
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