陕西林业科技2026，Vol.54Issue(3)：9-14,6.DOI:10.3969/j.issn.1001-2117.2026.03.002
渭北旱塬植被重建区坡面土壤水分变化影响机制分析
Impact Mechanism of Soil Moisture Change on the Slope of Vegetation Reconstruction Areas in Weibei Dryland
摘要
Abstract
The ecological environment in the Weibei arid region is fragile,and the vegetation restoration work faces numerous challenges due to harsh site conditions.As a key soil physical property index,soil moisture content affects the activities of soil microorganisms and the decomposition process of or-ganic matter,and is also related to vegetation coverage status and ecological system stability.To clar-ify the impact mechanism of soil moisture content,this study selected 9 impact factors from three as-pects:soil environmental factors,soil nutrient factors and topographic factors,and explored the im-pact of each factor on soil moisture content as well as the correlation among various factors.Mean-while,the partial least squares path model was used for modeling to explore the impact mechanism of impact factors on soil moisture content.The results show that among the various selected factors in the Weibei arid region,there is an obvious correlation between them.Among them,pH value and soil nutrient factors have a relatively large impact on soil moisture content.Further analysis by the partial least squares path model shows that soil nutrient factors explain approximately 51.86％of the varia-tion in soil moisture content,while the pH value explains approximately 7.66％of the variation in soil moisture content.This study effectively separated the driving effects of soil nutrient factors and soil environmental factors on soil moisture content,and explored the intensity and pathway of the interac-tion among various factors,which can provide a theoretical basis for the ecological restoration and construction in this region.关键词
渭北旱塬/困难立地/土壤含水率/偏最小二乘路径模型/土壤养分Key words
Weibei dryland/difficult site/soil moisture content/partial least squares path model/soil nutrients分类
农业科技引用本文复制引用
王诗琪,龙韶博,韩剑桥,谢毓芬,郭晖,武建超..渭北旱塬植被重建区坡面土壤水分变化影响机制分析[J].陕西林业科技,2026,54(3):9-14,6.基金项目
陕西林业科技创新专项(SXLK2024-0603) （SXLK2024-0603）
陕西省自然科学基础研究计划(2025JC-YBQN-239) （2025JC-YBQN-239）
中央财政林草科技推广示范项目(SLTG[2024]02) （SLTG[2024]02）
国家自然科学基金面上项目(42177327) （42177327）
国家自然科学基金黄河水科学联合研究基金课题(U2243212) （U2243212）
