| 引用本文: | 李于坤,李王成,马己安,等.不同降雨年型下种植密度对猪毛菜生长的影响[J].灌溉排水学报,0,():-. |
| liyukun,liwangcheng,majian,et al.不同降雨年型下种植密度对猪毛菜生长的影响[J].灌溉排水学报,0,():-. |
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| 摘要: |
| 【目的】种植密度会影响作物很多方面,为探究不同降雨年型下种植密度对猪毛菜蒸散量、猪毛菜生长及其表层土壤含盐状况的影响,以探求猪毛菜适宜在当地的种植状况。【方法】试验采用两因素五水平完全随机试验,设置特丰水年、丰水年、平水年、枯水年、特枯水年五个不同的降雨年型,1株/桶、2株/桶、3株/桶、4株/桶、5株/桶五个梯度的种植密度,分析了五种降雨年型下不同的种植密度对猪毛菜蒸散量、株高及根长、表层土壤电导率。【结果】考虑需要减少当地蒸散量这一因素,当种植密度为3株/桶时,是较为适合在当地生存的种植密度。此时,五种不同降雨年型下对应的株高分别为：32.5cm、51.4cm、44.75cm、40.67cm、34cm；对应的根长分别为：25.33cm、26.2cm、22.71cm、16cm、18cm；电导率的变化分别为：-443μs/cm、-758μs/cm、-1240μs/cm、-317μs/cm、+147μs/cm。【结论】种植密度与日蒸散量两者相关,但是线性相关度不够高；株高和根长随着种植密度的加大逐渐减小；种植密度的增大减少了表层土壤的电导率。 |
| 关键词: 降雨年型;种植密度;蒸散量;猪毛菜生长;表层土壤电导率 |
| DOI： |
| 分类号:S |
| 基金项目:国家自然科学基金(51869023)宁夏高等学校一流学科建设(水利工程学科)资助项目(NXYLXK2017A03)宁夏自治区级青年拔尖人才项目S(030103030008) |
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| Effects of Planting Density on Salsola Growth in Different Rainfall Types |
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liyukun, liwangcheng, majian, haolu, gaohaiyan, liuzixi
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School of Civil and Water Conservancy Engineering, Ningxia University
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| Abstract: |
| 【Objective】Planting density will affect many aspects of crops. In order to explore the effects of planting density on the evapotranspiration of Salsola’s, the growth of Salsola, and its surface soils salinity in different rainfall years, with the aim of exploring the appropriate planting conditions of Salsola. 【Method】The test used two factors and five levels of completely random tests. The test set five different rainfall year types: especially high water years, high water years, flat water years, low water years, and extremely low water years, and set five different planting density: 1 plant / barrel, 2 plants / barrel, 3 plants / barrel, 4 plants / barrel, and 5 plants / barrel. This article analyzes the effects of different planting densities on evapotranspiration, plant height and root length, and surface soil electrical conductivity in five rainfall types. 【Result】Considering the need to reduce the local evapotranspiration, when the planting density is 3 plants / barrel, it is the planting density that is more suitable for local survival. At this time, the corresponding plant heights for the five different types of rainfall are: 32.5cm、51.4cm、44.75cm、40.67cm、34cm; The corresponding root lengths are: 25.33cm、26.2cm、22.71cm、16cm、18cm; The changes in conductivity are: -443μs/cm、-758μs/cm、-1240μs/cm、-317μs/cm、+147μs/cm. 【Conclusion】Planting density is related to daily evapotranspiration, but the linear correlation is not high enough. Plant height and root length gradually decrease with increasing planting density. The increase of planting density reduce the electrical conductivity of surface soil. |
| Key words: Rainfall year types；Planting density；Evapotranspiration；Salsola growth；Surface soil electrical conductivity |
