QU Wenjie,YANG Xinguo,CHEN Lin,et al.Distribution Characteristics and Corresponding Relation Between Soil Particle Composition and Salt Ion Composition in Ningxia Pumping Irrigation Area[J].Northern Horticulture,2016,40(15):166-171.[doi:10.11937/bfyy.201615041]
扬黄灌区土壤颗粒组成与盐分离子的分布特征及其对应关系
- Title:
- Distribution Characteristics and Corresponding Relation Between Soil Particle Composition and Salt Ion Composition in Ningxia Pumping Irrigation Area
- 文献标志码:
- A
- 摘要:
- 以扬黄灌区不同地类的土壤颗粒组成与盐分离子分布特征为分析对象，采用RDA方法研究了不同等级颗粒和不同盐分离子间的对应关系。结果表明：细砂粒、粉粒和粘粒系土壤颗粒的主要成分，研究区土壤质地以沙壤土为主。具有潜在沙化趋势的地块集中在沙化玉米地和5年玉米地表层土壤。枸杞地盐离子含量显著高于玉米地，潜在盐渍化风险较高；随种植年限的延长，各种盐离子的含量有所降低。基于冗余分析（RDA）分析，0~10 cm和20~40 cm土层，粘粒和粉粒均对土壤盐离子响应有显著性解释（P=0.002），其解释量分别占所有土壤粒径参数解释量的63.64%、33.77%和69.12%、27.94%。60~80 cm土层，细沙粒（0.02 mm
- Abstract:
- Based on the distribution of soil particle composition and salt ions among different land use types in Yellow River irrigation area，the RDA method analysis was used to analysis their relationships.The results showed that，soil texture in the study area was sandy loam，including fine sand，silt，and clay particles as the main.Reclamation had significantly changed vertical distribution patterns of soil texture，as the effect by cultivation methods and cropping duration.There was a risk of desertification for corn lands under transitional utilization.Overall，sandy corn salt ions content，unused salt ions content，medlar was significantly higher than that of corn.Unused land of the accumulation of salt ions were most prominent，effect of the lycium barbarum water desalination was more obvious.With the increase of planting age，contents of alkali ions showed a downward trend，and mobility the ability of chloride，sodium and sulfate ions.With varying degrees of salinization of soil environmental quality and characteristics of alkalization was not obvious.Based on soil particle composition and RAD analysis of saline-alkali Ionic composition，0-10 cm，and 20-40 cm soil，affecting soil salinity changed of ion concentration and particle size of 6 parameters，D≤0.002 mm and 0.002 mm＜D≤0.02 mm size sand content of soil salinity ions responded significantly to explain (P=0.002)，they explained all the soil grain size parameters are interpreted respectively as 63.64%，33.77% and 69.12%，27.94%.60-80 cm soil，0.02 mm＜D≤0.05 mm grain diameter sand content on soil saline ion response had significantly explained (P=0.004)，its explained volume accounted for all soil grain diameter parameter explained volume of 81.08%，but this explained volume only for 37%.Different land management and utilization years led to significant changes in the basic distribution of soil particle composition and salt ions，secondary degradation of partial classes were still potential risks.There was a significant relationship between the salt ions and soil particle composition，soil clay and silt content significantly changed the distribution of salt ions in surface and plow soil，and fine sand may be more prominent role at the bottom of soil.
参考文献/References:
[1]虞江萍，文云朝，汪一鸣，等.宁夏扬黄灌溉对土壤环境的影响[J].地理科学进展，2000，19(3)：279-284. [2]王鸣远，关三和，王义.毛乌素沙地过渡地带土壤水分特征及其植物利用[J].干旱区资源与环境，2002，16(2)：37-44. [3]李小刚，崔志军，王玲英，等.盐化和有机质对土壤结构稳定性及阿特伯格极限的影响[J].土壤学报，2002，39(4)：550-559. [4]靳敏生.宁夏红寺堡灌区土壤沙化治理的措施与实践[J].农业科学研究，2005，26(2)：51-52. [5]杨新国，宋乃平，刘秉儒，等.荒漠草原绿洲化过程中灌溉玉米地土壤夏季盐渍化特征[J].水土保持学报，2011，25(4)：94-99. [6]杨新国，宋乃平.宁夏红寺堡扬黄灌区土壤沙化和盐渍化及其相互关系[J].应用生态学报，2011，22(9)：2265-2271. [7]金国柱，马玉兰.宁夏淡灰钙土的开发和利用[J].干旱区研究，2000，17(3)：59-63. [8]路鹏，苏以荣，牛铮，等.土壤质量评价指标及其时空分异[J].中国生态农业学报，2007，15(4)：190-194.
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备注/Memo
第一作者简介：曲文杰（1982-），女，山东龙口人，硕士，研究实习员，研究方向为草地生态与恢复重建。E-mail：wenjiequ2015@163.com.基金项目：国家自然科学基金资助项目（41101301）。