Effects of

LANG Minghan; ZHANG Risheng; HAN Hui; WANG Xu; FAN Shenghao

doi:10.13870/j.cnki.stbcxb.2023.05.045

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Effects of

更新时间：2025-03-12

- Effects of
- Vol. 37, Issue 5, Pages: 370-376(2023)
- 作者机构：
  
  1. 辽宁省沙地治理与利用研究所, 辽宁章古台科尔沁沙地生态系统国家定位观测研究站,辽宁,阜新,123000
  2. 辽宁省水利事务服务中心,沈阳,110003
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2023.05.045
  CLC： S715.3
- Published：2023
- 稿件说明：
移动端阅览
LANG Minghan, ZHANG Risheng, HAN Hui, et al. Effects of[J]. 2023, 37(5): 370-376.
DOI：

LANG Minghan, ZHANG Risheng, HAN Hui, et al. Effects of[J]. 2023, 37(5): 370-376. DOI： 10.13870/j.cnki.stbcxb.2023.05.045.

摘要

为掌握科尔沁沙地南缘樟子松造林40多年对土壤水分、盐度的影响。以科尔沁沙地樟子松林地、草地2020年3月至2021年11月土壤、气象数据为基础

采用双累积曲线法(DCM)验证样地选取的合理性

利用空间代替时间法(STM)研究樟子松林地、草地土壤含水量、盐度的变化规律

以及与气象因子关系的差异。樟子松林地改变了土壤纵向剖面水分、盐度分布规律

二者均趋于正"S"形分布;林地有效提高土壤储水量(p<0.05)

降低土壤盐度

缩减水分次活跃层范围;林地土壤水分变异性更高(p<0.05)

盐度变异性更低(p>0.05);林地的气象因子与土壤水分、盐度指标各分项之间关联程度与草地不同

减弱与降雨的相关性

增加与水汽压亏缺的相关系数。樟子松林生态系统具有较强的涵养水源、抑制土壤盐渍化的功能。

Abstract

To understand the impact of more than 40 years of afforestation of Pinus sylvestris plantation on soil water and salt in the southern edge of Horqin sandy land

based on the soil and meteorological data of P. sylvestris forest land and grassland from March 2020 to November 2021 in Horqin sandy land

the double cumulative curve method (DCM) was used to verify the rationality of sample plot selection

the spatial instead of time method (STM) was used to study the variation pattern of soil water content and salinity in P. sylvestris forest land and grassland and the differences in their correlation with meteorological factors. P. sylvestris forest changed the distribution of water and salt in the longitudinal profile of the soil

both tended to be in a positive "S" shape. Forest effectively increased soil water storage (p<0.05)

reduced soil salinity

and reduced the range of water sub active layer. The variability of forest soil water was higher (p<0.05)

while the variability of salinity was lower (p>0.05). The correlation degree between the meteorological factors and soil moisture and salinity indicators in forest was different from that in grassland

weakening the correlation with rainfall and increasing the correlation coefficient with water vapor pressure deficit. These results indicated that P. sylvestris forest ecosystem had a strong function of water conservation and soil salinization inhibition.

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⁰

Effects of

DOI：10.13870/j.cnki.stbcxb.2023.05.045

摘要

Abstract

关键词

Keywords

references