|Table of Contents|

Distribution Characteristics and Corresponding Relation Between Soil Particle Composition and Salt Ion Composition in Ningxia Pumping Irrigation Area(PDF)

《北方园艺》[ISSN:1001-0009/CN:23-1247/S]

Issue:
2016年15
Page:
166-171
Research Field:
Publishing date:

Info

Title:
Distribution Characteristics and Corresponding Relation Between Soil Particle Composition and Salt Ion Composition in Ningxia Pumping Irrigation Area
Author(s):
QU Wenjie1; 2; YANG Xinguo1; 2; CHEN Lin1; 2; SONG Naiping1; 2
（1.Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China，Ningxia University，Yinchuan,Ningxia 750021；2.Key Laboratory for Recovery and Restoration of Degraded Ecosystem in North-western China of Ministry of Education，Ningxia University，Yinchuan,Ningxia 750021）
Keywords:
pumping irrigation area; soil particle composition; salt ion composition; RDA analysis
PACS:
-
DOI:
10.11937/bfyy.201615041
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.

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.

Memo

Memo:
-
Last Update: 2016-08-30