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冬季积雪与冻融对土壤团聚体稳定性的影响

娄鑫 谷岩 张军辉 韩士杰

娄鑫, 谷岩, 张军辉, 韩士杰. 冬季积雪与冻融对土壤团聚体稳定性的影响[J]. 北京林业大学学报, 2016, 38(4): 63-70. doi: 10.13332/j.1000-1522.20150435
引用本文: 娄鑫, 谷岩, 张军辉, 韩士杰. 冬季积雪与冻融对土壤团聚体稳定性的影响[J]. 北京林业大学学报, 2016, 38(4): 63-70. doi: 10.13332/j.1000-1522.20150435
LOU Xin, GU Yan, ZHANG Jun-hui, HAN Shi-jie. Effects of snow cover and freeze-thaw cycles on stability of surface soil aggregates in forest[J]. Journal of Beijing Forestry University, 2016, 38(4): 63-70. doi: 10.13332/j.1000-1522.20150435
Citation: LOU Xin, GU Yan, ZHANG Jun-hui, HAN Shi-jie. Effects of snow cover and freeze-thaw cycles on stability of surface soil aggregates in forest[J]. Journal of Beijing Forestry University, 2016, 38(4): 63-70. doi: 10.13332/j.1000-1522.20150435

冬季积雪与冻融对土壤团聚体稳定性的影响

doi: 10.13332/j.1000-1522.20150435
基金项目: 

国家自然科学基金重点项目(41330530)、国家自然科学基金项目(41430639)、大连大学博士启动专项、大连大学优秀青年博士专项。

详细信息
    作者简介:

    娄鑫,博士。主要研究方向: 森林土壤生态学。 Email: milo8482@gmail.com 地址:116622辽宁省大连市经济技术开发区学府大街10号大连大学现代农业研究院。
    责任作者: 韩士杰,博士,研究员。主要研究方向: 森林生态学、界面生态学。Email: hansj@iae.ac.cn 地址:110016辽宁省沈阳市沈河区文化路72号中国科学院沈阳应用生态研究所。

    娄鑫,博士。主要研究方向: 森林土壤生态学。 Email: milo8482@gmail.com 地址:116622辽宁省大连市经济技术开发区学府大街10号大连大学现代农业研究院。
    责任作者: 韩士杰,博士,研究员。主要研究方向: 森林生态学、界面生态学。Email: hansj@iae.ac.cn 地址:110016辽宁省沈阳市沈河区文化路72号中国科学院沈阳应用生态研究所。

Effects of snow cover and freeze-thaw cycles on stability of surface soil aggregates in forest

  • 摘要: 以长白山地区3种不同林型土壤为研究对象,利用野外采样观测与室内模拟培养相结合的方式,研究积雪与冻融过程对土壤团聚体稳定性的影响。结果表明:1)冬季冻融过程使白桦成熟林土壤团聚体稳定性(MWD)出现显著下降(P<, 0.01),但并未显著影响白桦幼龄林和阔叶红松成熟林。冬季冻结及春季冻融过程都能显著影响团聚体MWD值(P<, 0.01), 2)提前雪盖能够防止土壤秋冬季冻融及冬季土壤结冻,并能够显著增加团聚体MWD值,但并不能防止春季融雪冻融阶段团聚体MWD值下降。3)土壤团聚体在冻融过程中受到不同冻融次数、不同林型以及不同含水率影响,差异显著。本文的研究结果表明,气候变暖、冬季降水格局变化这些全球变化因素能够影响到雪盖、土壤温度、湿度等因素,从而影响土壤团聚体稳定性。

     

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  • 收稿日期:  2015-11-05
  • 刊出日期:  2016-04-30

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