西北林学院学报2025，Vol.40Issue(5)：24-36,13.DOI:10.3969/j.issn.1001-7461.2025.05.03
白于山区不同植被恢复类型和坡位对土壤质量的影响
Response Characteristics of Soil Quality to Different Vegetation Restoration Types and Slope Positions in Baiyu Mountain Area
摘要
Abstract
Soil quality assessment is an important way to evaluate the effect of vegetation restoration.To understand the relationship between soil quality and vegetation growth in the Baiyu Mountain area,this study used barren grassland as the control.In February 2023,four typical tree and shrub stand types,namely Caragana,poplar,apricot,and oil pine,were selected in the Baiyu Mountain area.Soil samples with in the 0-40 cm soil layer were collected.The vertical distribution characteristics of soil physical and chemical properties of various vegetation types under different slope conditions were discussed,and a com-prehensive evaluation of their soil quality was conducted.The results show that:1)Among different vege-tation types,the soil field capacity,saturated water content,soil organic matter and total phosphorus con-tent are the highest in the Populus simonii forest,while the soil bulk density and clay content are the high-est in the Pinus tabuliformis forest.The maximum silt content and the minimum sand content are both found in the Caragana korshinskii forest,and the minimum soil organic matter and total phosphorus con-tent are both found in the Pinus tabuliformis or Caragana korshinskii forest.2)With the increase of soil depth,the field capacity,saturated water content,organic matter content and total phosphorus content gen-erally show a downward trend,while the bulk density shows an upward trend.There is no obvious change pattern for the other indicators.3)Vegetation type significantly affects the soil quality index,with aban-doned land(0.570)＞Caragana korshinskii forest(0.560)＞Populus simonii forest(0.559)＞apricot for-est(0.533)＞Pinus tabuliformis forest(0.525).The slope position also has a significant impact on soil quality.Except for abandoned land,the soil quality index of different vegetation types shows a trend of first increasing and then decreasing from the top to the bottom of the slope.Except for abandoned land,the soil quality index at the top and middle of the slope is the highest in the Caragana korshinskii forest,while at the bottom of the slope,it is the highest in the Populus simonii forest.In the future,when carrying out vegetation restoration in the Baiyu Mountain area,tree species can be reasonably selected in combination with slope position,root characteristics of tree species and other conditions to form stable configuration patterns such as tree-shrub and tree-shrub-herb.关键词
白于山/土壤质量/空间变异/坡位/土壤理化性质Key words
Baiyu Mountain/soil quality/spatial variation/slope position/soil physicochemical properties分类
农业科技引用本文复制引用
高荣,马雅莉,李剑,刘晓莉,柴红烨,高东治,刘冬林,石长春..白于山区不同植被恢复类型和坡位对土壤质量的影响[J].西北林学院学报,2025,40(5):24-36,13.基金项目
国家林业和草原局揭榜挂帅项目(202401-04) （202401-04）
陕西林业科技创新专项(SXLK2021-0104,SXLK2024-0203) （SXLK2021-0104,SXLK2024-0203）
陕西省科学技术研究发展计划项目(SXKJFE-2021) （SXKJFE-2021）
陕西林业科技创新青年人才培育专项(SXLK2023-06-6) （SXLK2023-06-6）
榆林市科技计划项目(YF-2022-9,YF-2022-11) （YF-2022-9,YF-2022-11）
榆林市委、市政府专项"榆林防止二次沙化与水土流失调查研究"(榆政财资发[2021]47号) （榆政财资发[2021]47号）
"三北"工程攻坚战共性基础理论研究项目(办科字[2024]126号) （办科字[2024]126号）
黄河"几字弯"攻坚战关键技术攻坚项目(办科字[2024]126号). （办科字[2024]126号）
