水土保持研究2024，Vol.31Issue(5)：192-198,7.DOI:10.13869/j.cnki.rswc.2024.05.022
白于山区土壤干燥化对人工林植被恢复40年的响应特征
Response Characteristics of Soil Desiccation to Plantation Vegetation Restoration in Baiyu Mountain Area for 40 Years
摘要
Abstract
[Objective]The aims of this study are to determine the soil desiccation characteristics of a typical plantation in the Baiyu Mountain area,and to provide theoretical basis for reasonable selection and sustainable development of plantation in Baiyu Mountain area.[Methods]The plantations with 40 years of vegetation restoration(Populus Xhopeiensis Hu & Chow,Pinus tabulaeformis,and Pinus sylvestris var.mongholica Litv.)were taken as the samples.The barren grassland was taken as the control.Artificial soil drilling method was used to study the drying characteristics and influencing factors of 0-5 m soil in the artificial forest.[Results](1)The average soil water content of different plantations was in the order:grassland(4.95％)＞Pinus sylvestris var.mongholica Litv.(4.49％)＞Populus × hopeiensis Hu &Chow(4.39％)＞Pinus tabuliformis(2.44％).(2)The soil dry layer existed in different plantations and the formation depth and thickness of the dry layer were basically the same,but the average water content of the soil in the dry layer was different,the lowest value was observed in Pinus tabulaeformis and the highest value was observed in the wasteland.(3)The soil desiccation index of different plantations followed the order:Pinus tabuliformis(69.75％)＞Populus × hopeiensis Hu & Chow(28.83％)＞Pinus sylvestris var.mongholica Litv.(26.73％)＞grassland(17.05％).(4)Correlation analysis and multiple linear regression model showed that silt,sand and depth were the main factors affecting soil desiccation characteristics of Pinus sylvestris var.mongholica Litv.,Pinus tabulaeformis and Populus × hopeiensis Hu & Chow,respectively.[Conclusion]The soil desiccation degree of Pinus sylvestris var.mongholica Litv.was the lowest after 40 years of planting,Pinus sylvestris var.mongholica Litv.could be used as the best choice for afforestation of typical plantation in Baiyu Mountain area.关键词
白于山区/人工林/土壤干燥化Key words
Baiyu Mountain area/plantation forest/soil desiccation分类
农业科技引用本文复制引用
马雅莉,石长春,刘喜东,张立强,张晨晨,高东治,张艳,段永强,张彦昶,乔江波..白于山区土壤干燥化对人工林植被恢复40年的响应特征[J].水土保持研究,2024,31(5):192-198,7.基金项目
陕西省科学技术厅青年项目(2021JQ-168) （2021JQ-168）
陕西省林业科学院科技创新计划(SXLK2021-0104,SXLK2021-0207) （SXLK2021-0104,SXLK2021-0207）
陕西林业科技创新重点专项(SXLK2023-02-11) （SXLK2023-02-11）
陕西林业科技创新青年人才培育专项(SXLK2023-06-6) （SXLK2023-06-6）
陕西省哲学社会科学研究专项(2022HZ1757、2022HZ1789) （2022HZ1757、2022HZ1789）
陕西省榆林市发展和改革委员会2023年度市本级政府投资项目"陕北地区退化生态系统治理与修复植物配置模式研究"(2023-YLSFGW-60) （2023-YLSFGW-60）
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）
