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中国农学通报

中国农学通报 ›› 2024, Vol. 40 ›› Issue (12): 65-69.doi: 10.11924/j.issn.1000-6850.casb2023-0453

所属专题： 农业地理

• 资源·环境·生态·土壤 • 上一篇    下一篇

神木北部风沙黄土区不同植被类型土壤水分特征

杨妮1(), 刘长海1,2(), 贾雨如1, 古孟怡1   

  1. 1 延安大学生命科学学院，陕西延安 716000
    2 陕西省红枣重点实验室，陕西延安 716000
  • 收稿日期:2023-06-12 修回日期:2023-10-09 出版日期:2024-04-25 发布日期:2024-04-22
  • 通讯作者:
    刘长海，男，1965年出生，陕西淳化人，教授，博士，主要从事动物生态学和修复生态学研究。通信地址：716000 陕西省延安市宝塔区圣地路580号 延安大学生命科学学院，Tel：0911-2332030，E-mail：。
  • 作者简介:

    杨妮，女，2002年出生，陕西西安人，本科，研究方向：土壤水分。通信地址：716000 陕西省延安市宝塔区圣地路580号 延安大学，E-mail：。

  • 基金资助:
    国家自然科学基金项目“黄土高原退耕还林区土壤动物群落及演变机理”(32060297); “不同强度下南泥湾湿地土壤动物动态变化研究”(31370541); 国家级大学生创新创业训练计划项目“煤矿复垦区林下草本群落特征及其与土壤耦合关系”(S202210719031)

Soil Moisture Characteristics of Different Vegetation Types in Wind-sandy Loess Region in Northern Shenmu City

YANG Ni1(), LIU Changhai1,2(), JIA Yuru1, GU Mengyi1   

  1. 1 School of Life Science, Yan’an University, Yan’an, Shaanxi 716000
    2 Shaanxi Key Laboratory of Chinese Jujube, Yan’an, Shaanxi 716000
  • Received:2023-06-12 Revised:2023-10-09 Published:2024-04-25 Online:2024-04-22

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摘要：

为进一步了解风沙黄土区不同植被类型土壤水分特征，选择陕西省榆林市神木市大柳塔镇5种典型植被类型的7个样地柠条1、柠条2、草地1、草地2、樟子松、沙棘、杏树为研究对象，采用单因素方差分析法比较不同样地间土壤水分的差异性。结果表明：（1）在0~100 cm土层，研究区不同植被类型间土壤含水量和土壤蓄水量均存在显著差异(P<0.05)，均表现为杏树>沙棘>柠条1>柠条2>草地1>樟子松>草地2。（2）不同植被类型土壤含水量随着土层深度的增加整体上都成增加趋势。其中草地1、樟子松、草地2的变化趋势不明显。（3）不同植被类型土壤蓄水量随土层深度的增加整体上均表现出不断增加的趋势。各植被在0~40 cm土层的蓄水量均比较少且变化不大，在40~100 cm土层时土壤蓄水量变化较大且均在80~100 cm土层时的蓄水量达到最大。该试验分析出了该地不同植被类型下的土壤含水量及土壤蓄水量特征，对该地后续的水土保持与植被恢复和生态环境建设提供理论依据。

关键词: 土壤含水量, 土壤蓄水量, 不同植被类型, 风沙黄土区

Abstract:

To further understand the soil water characteristics of different vegetation types on the Loess Plateau, 7 plots of 5 typical vegetation types including Caragana korshinskii 1, Caragana korshinskii 2, grassland 1, grassland 2, Pinus sylvestris, Hippophae rhammoides, and apricot were selected as the research objects in Daliuta Town, Shenmu City, Yulin City, Shaanxi Province. Single factor analysis of variance was used to compare the differences of soil water in different sites. The results showed that: (1) in the 0-100 cm soil layer, there were significant differences in soil water content and soil water storage among different vegetation types (P<0.05), with the order of apricot tree>Hippophae rhammoides>Caragana korshinskii 1>Caragana korshinskii 2>grassland 1>Pinus sylvestris>grassland 2. (2) Soil moisture content of different vegetation types increased with the increase of soil depth. The change trend of grassland 1, Pinus sylvestris and grassland 2 was not obvious. (3) Soil water storage of different vegetation types showed an increasing trend as a whole with the increase of soil depth. The water storage capacity of each vegetation was relatively small in 0-40 cm soil layer and had little change; it changed greatly in the 40-100 cm soil layer and reached the maximum in the 80-100 cm soil layer. The experiment analyzed the characteristics of soil water content and soil water storage under different vegetation types, which provided theoretical basis for the subsequent soil and water conservation, vegetation restoration and ecological environment construction in this region.

Key words: soil water content, soil water storage, different vegetation types, wind-sandy loess region