摘要
在柴达木盆地盐碱地上对覆膜种植2年的紫花苜蓿人工草地土壤进行了研究,结果表明:苜蓿人工草地可显著降低0～30cm耕层土壤全盐含量(P <0. 05),比对照降低了37. 33%;各层土壤p H值均显著低于对照(P <0. 05),0～30cm耕层土壤p H值比对照降低了5. 26%;0～30cm耕层土壤养分有增加趋势,但差异不显著(P> 0. 05),且土壤有机质含量显著高于对照(P <0. 05),比对照增加了14. 21%;苜蓿人工草地土壤表层温度比对照有所提高,但差异不显著(P> 0. 05),比对照提高了10. 61%;土壤表层湿度显著高于对照(P <0. 05),比对照增加了121. 18%。
The soil of the artificial grassland of mulching planting alfalfa 2 years was studied on the saline - alkali soil of Chaidam basin. The results showed that the effect of planting the Medicago sativa can significantly reduce salinity at 0 - 30 cm of soil depth （ P 〈 0.05 ） , it was 37.33 % lower than the control group. The pH value of all soil layers was significantly lower than that of the control group （ P 〈 0.05 ） , and the pH value of 0 - 30cm cultivated soil was lower of 5.26% than that of the control group. Soil nutrients in the 0 - 30cm tillage layer showed an increasing trend, but the difference was not significant （ P 〉 0.05 ）, but the soil organic matter content was significantly higher than the control （P 〈 0.05） , and 14.21% higher than the control. Soil surface temperature of alfalfa artificial grassland was higher than that of control, but the difference was not significant （P 〉 0.05）, which was 10.61% higher than that of con- trol. The soil surface moisture was significantly higher than the control （P 〈 0.05） , with an increase of 121.18%.
作者
王彦龙
杨晓霞
王晓丽
李世雄
马玉寿
WANG Yan-long(Qinghai Academy of Animal Science and Veterinary Medicine,Qinghai University,Xining,810016)
出处
《青海畜牧兽医杂志》
2018年第5期6-10,共5页
Chinese Qinghai Journal of Animal and Veterinary Sciences
基金
国家重点研发计划课题“高寒荒漠草原区高效节水灌溉技术研究与集成应用”(2016YFC040030402)
青海省科技厅重大专项“盐碱地牧草种植技术集成示范”(2014-NK-A4-5)
关键词
柴达木盆地
盐碱地
紫花苜蓿人工草地
土壤
Qaidam basin
Saline - alkali land
Medicago sativa artificial grassland
Soil
