Spatial Variation of Soil Moisture and Its Environmental Influencing Factors in A Small Watershed in the Loess Alpine Region

XIE Zhengfeng; WANG Dongmei; ZHANG Peng; ZHANG Zezhou; REN Huaixin; WANG Hui; HUANG Wei; ZHANG Linlin

doi:10.13870/j.cnki.stbcxb.2022.04.025

您当前的位置：

首页 >

文章列表页 >

Spatial Variation of Soil Moisture and Its Environmental Influencing Factors in A Small Watershed in the Loess Alpine Region

更新时间：2025-03-12

- Spatial Variation of Soil Moisture and Its Environmental Influencing Factors in A Small Watershed in the Loess Alpine Region
- Vol. 36, Issue 4, Pages: 196-203(2022)
- 作者机构：
  
  北京林业大学水土保持学院,北京,100083
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2022.04.025
  CLC： S152.7
- Published：2022
- 稿件说明：
移动端阅览
XIE Zhengfeng, WANG Dongmei, ZHANG Peng, et al. Spatial Variation of Soil Moisture and Its Environmental Influencing Factors in A Small Watershed in the Loess Alpine Region[J]. 2022, 36(4): 196-203.
DOI：

XIE Zhengfeng, WANG Dongmei, ZHANG Peng, et al. Spatial Variation of Soil Moisture and Its Environmental Influencing Factors in A Small Watershed in the Loess Alpine Region[J]. 2022, 36(4): 196-203. DOI： 10.13870/j.cnki.stbcxb.2022.04.025.

摘要

针对区域流域尺度上土壤水分在地形、植被等要素协同作用下的空间异质性规律以及响应机制研究较少，以青海大通典型人工林小流域为研究对象，自坡脚向上延3个坡向（阴坡、半阴坡、阳坡）呈放射状选取3条样线带布设样点，采用统计学分析、主成分分析和冗余分析等方法研究生长季初末时期0—20，20—40，40—60，60—80，80—100 cm各层土壤水分空间变异特征，以及各环境因子（海拔、植被高度、植被冠幅、地上生物量、草本丰富度、草本盖度、枯落物干重）对其影响规律。结果表明：生长季末水分均值、最值均大于生长季初，各坡向体积含水率最值、均值均表现为阴坡>半阴坡>阳坡，各土层呈中等变异（10%阳坡>阴坡，在末期表现为阳坡>半阴坡>阴坡；水分采样点间隔在初期应在36.50~448.90 m，末期应在18.30~552.40 m；冗余分析结果显示，海拔是影响青海高寒区土壤水分异质性的主控因素，解释率为35.3%（p<0.01），草本丰富度次之，解释率为26.1%（p<0.01），植被高度与植被冠幅也有显著影响。研究结果可为青海黄土高寒区退耕还林小流域生态水文过程研究以及后续植被恢复提供数据与理论参考。

Abstract

There are few studies on the spatial heterogeneity law and response mechanism of soil water under the synergistic effect of topography

vegetation and other elements at the regional watershed scale. Taking the typical small watershed restored by artificial forest in Datong

Qinghai Province as the research object

three slope aspects (shady slope

semi-shady slope and sunny slope) were selected

and the sample points were laid out in three transect belts

which were in a radial pattern. Statistical analysis

principal componentanalysis and redundancy analysis methods were used to study the soil moisture spatial variation characteristics in 0-20 cm

20-40 cm

40-60 cm

60-80 cm and 80-100 cm layers at the beginning and the end of the growing season

as well as the effects of environmental factors (altitude

vegetation height

vegetation canopy

aboveground biomass

herb richness

herb cover and dry weight of litter). The results showed that the average and maximum water content at the end of the growing season were both greater than those at the beginning of the growing season

and the maximum and average values of volumetric water content in each slope aspect followed the order of shady slope>semi-shady slope>sunny slope

and each soil layer showed a moderate variation (10%sunny slope>shady slope at the initial stage

and at the final stage the order was sunny slope>semi-shady slope>shady slope. The water sampling point interval should be from 36.50 to 448.90 m at the initial stage and 18.30 to 552.40 m at the final stage. The redundancy analysis results showed that altitude was the main controlling factor affecting soil moisture heterogeneity in the alpine region of Qinghai

with an explanation rate of 35.3% (p<0.01)

followed by the herb richness

with an explanation rate of 26.1% (p<0.01).Vegetation height and vegetation crown width also had significant effects. The research's results could provide data and theoretical reference for the study of the eco-hydrological process and the subsequent vegetation restorationin small watershed of returning farmland to forest in the loess alpine region of Qinghai.

关键词

Keywords

references

Li X Z, Shao M A, Jia X X, et al. Profile distribution of soil-water content and its temporal stability along a 1340-m long transect on the Loess Plateau, China[J].Catena, 2016, 137:77-86.

Bernacchi C J, VanLoocke A. Terrestrial ecosystems in a changing environment:A dominant role for water[J].Annual Reviews of Plant Biology, 2015, 66(1):599-622.

Western A W, Blöschl G. On the spatial scaling of soil moisture[J].Journal of Hydrology, 1999, 217(3/4):203-224.

Li J R, Okin G S, Alvarez L, et al. Effects of wind erosion on the spatial heterogeneity of soil nutrients in two desert grassland communities[J].Biogeochemistry, 2008, 88(1):73-88.

陈洪松, 邵明安.黄土区坡地土壤水分运动与转化机理研究进展[J].水科学进展, 2003, 14(4):513-520.

刘晓丽, 马理辉, 杨荣慧, 等.黄土半干旱区枣林深层土壤水分消耗特征[J].农业机械学报, 2014, 45(12):139-145.

林莎, 贺康宁, 王莉, 等.基于地统计学的黄土高寒区典型林地土壤水分盈亏状况研究[J].生态学报, 2020, 40(2):728-737.

张诗祁, 牛文全, 李国春.关中平原田间土壤含水量的空间变异性[J].应用生态学报, 2020, 31(3):821-828.

戴军杰, 章新平, 吕殿青, 等.南方红壤丘陵区樟树林土壤水分动态变化[J].水土保持研究, 2019, 26(4):123-131.

张川, 张伟, 陈洪松, 等.喀斯特典型坡地旱季表层土壤水分时空变异性[J].生态学报, 2015, 35(19):6326-6334.

刘洋, 罗娅, 陆晓辉, 等.喀斯特峡谷区土壤水分特征及其影响因素研究[J].生态科学, 2021, 40(3):8-16.

史文娟, 马媛, 徐飞, 等.不同微尺度膜下滴灌棉田土壤水盐空间变异特性[J].水科学进展, 2014, 25(4):585-593.

邢旭光, 赵文刚, 柳烨, 等.猕猴桃果园不同采样密度下土壤含水率空间变异性研究[J].农业机械学报, 2015, 46(8):138-145.

郭欣欣, 付强, 卢贺, 等.东北黑土区农林混合利用坡面土壤水分空间异质性及主控因素[J].农业工程学报, 2018, 34(19):123-130.

Güntner A, Bronstert A. Representation of landscape variability and lateral redistribution processes for large-scale hydrological modelling in semi-arid areas[J].Journal of Hydrology, 2004, 297(1/4):136-161.

胡伟, 邵明安, 王全九.黄土高原退耕坡地土壤水分空间变异性研究[J].水科学进展, 2006(1):74-81.

Cantón Y, Solé-Benet A, Domingo F. Temporal and spatial patterns of soil moisture in semiarid badlands of SE Spain[J].Journal of Hydrology, 2004, 285(1/4):199-214.

纪文瑶.内蒙古草原生物量、地下生产力及其与环境因子关系研究[D].北京:北京师范大学, 2013.

雷志栋, 杨诗秀, 谢森传.田间土壤水量平衡与定位通量法的应用[J].水利学报, 1988(5):1-7.

张金屯.数量生态学[M].北京:科学出版社, 2004.

王政权.地统计学及在生态学中的应用[M].北京:科学出版社, 1999:35-64.

杨静涵, 刘梦云, 张杰, 等.黄土高原沟壑区小流域土壤养分空间变异特征及其影响因素[J].自然资源学报, 2020, 35(3):743-754.

王甜, 康峰峰, 韩海荣, 等.山西太岳山小流域土壤水分空间异质性及其影响因子[J].生态学报, 2017, 37(11):3902-3911.

Hu W, Shao M A, Han F P, et al. Spatio-temporal variability behavior of land surface soil water content in shrub- and grass-land[J].Geoderma, 2011, 162(3/4):260-272.

王云强, 邵明安, 刘志鹏.黄土高原区域尺度土壤水分空间变异性[J].水科学进展, 2012, 23(3):310-316.

武泽宇, 薛亮, 张显松, 等.喀斯特白云岩坡地旱季不同植被类型土壤水分空间变异性[J].林业科学研究, 2021, 34(4):74-83.

刘宇, 王彦辉, 郭建斌, 等.六盘山华北落叶松人工林土壤水分空间异质性的降雨前后变化及其影响因素[J].水土保持学报, 2016, 30(5):197-204.

Western A W, Blöschl G, Grayson R B. Geostatistical characterisation of soil moisture patterns in the Tarrawarra catchment[J].Journal of Hydrology, 1998, 205(1):20-37.

张璐, 朱仲元, 张圣微, 等.半干旱草原型流域土壤水分变异及其影响因素分析[J].农业工程学报, 2020, 36(13):124-132.

付国珍, 摆万奇, 姚丽娜.拉萨河流域耕地不同尺度土壤水分影响因子[J].应用生态学报, 2015, 26(7):2115-2122.

高晓东, 吴普特, 张宝庆, 等.黄土丘陵区小流域土壤有效水空间变异及其季节性特征[J].土壤学报, 2015, 52(1):57-67.

Charpentier M A, Groffman P M. Soil moisture variability within remote sensing pixels[J].Journal of Geophysical Research:Atmospheres, 1992, 97(D17):18987-18995.

Views

749

下载量

CSCD

Alert me when the article has been cited

提交

Tools

Publicity Resources

Spatial Variation Characteristics of Soil Moisture in the Three Gorges Mountain Catchment Area of the Yangtze River

Spatial Variation of Soil Moisture in Coal Mining Subsidence Area in Mu Us Sandy Land

Soil Moisture Retrieval Under Different Land Use Types in the Loess Area Using Electrical Resistivity Tomography

Regulation Mechanism of Rainstorm Intensity and Process on Soil Moisture Deficit in the Edge Zones of Weibei Rainfed Plateau

Spatial Variation Characteristics of Soil Aggregate Stability and Erodibility in Typical Small Watershed of Loess Alpine Region

Related Author

HU Lexin

LIU Muxing

ZHAO Lu

YI Jun

ZHANG Hailin

WAN Jinhong

ZHAO Guoping1

Related Institution

Hubei Key Laboratory for Geographical Process Analyzing&Modeling

College of Urban and Environmental Sciences,Central China Normal University

Institute of Water Conservancy History, China Academy of Water Resources and Hydropower Sciences

Shaanxi Key Laboratory of Ecological Rehabilitation in Shan-Bei Mining Area

Desert Control Research Institute of Shaanxi Province

⁰