土壤学报2025，Vol.62Issue(1)：165-176,12.DOI:10.11766/trxb202403290141
毛乌素沙地典型人工植被根际土壤磷形态特征
Phosphorus Speciation Characteristics of Typical Artificial Vegetation Rhizosphere Soil in Mu Us Sandy Land
摘要
Abstract
[Objective]Artificial vegetation plays an important role in the restoration of the ecosystem in Mu Us Sandy Land.Understanding the phosphorus(P)forms in the rhizosphere and bulk soils of typical artificial vegetation can provide a basis for scientific vegetation construction in the area.[Method]The rhizosphere soil and bulk soil of seven typical artificial vegetations(Pinus sylvestris,Populus simonii,Amygdalus pedunculata,Amorpha fruticosa,Salix psammophila,Sabina vulgaris,and Artemisia ordosica)in Mu Us Sandy Land were collected and the phosphorus content of different forms were subsequently determined using Jiang-Gu phosphorus fractionation method.[Result]The results showed that 1)The total phosphorus(TP)content of Salix psammophila rhizosphere soil was significantly higher than that of other vegetation types while Populus simonii,Amygdalus pedunculata,and Artemisia ordosica increased available phosphorus(AP)content in rhizosphere soil.This indicates that planting Populus simonii and the other 3 vegetation types was beneficial for P activation.2)The Ca8-P content in rhizosphere soil of Pinus sylvestris,Amygdalus pedunculata,Amorpha fruticosa,and Salix psammophila was lower than in the bulk soil.The decrease in Al-P and Fe-P in Amorpha fruticose rhizosphere soil was the largest,and the difference in Ca1o-P content between rhizosphere and bulk soil was the smallest in Salix psammophila.[Conclusion]Al-P and Fe-P showed a significant positive correlation with AP in most vegetation rhizosphere soils and were the main forms involved in soil P transformation.This study provides scientific evidence and directives for the management and planting pattern layout of plantations to promote sustainable P management.关键词
毛乌素沙地/人工植被/根际效应/磷形态/磷有效性Key words
Mu Us Sandy Land/Artificial vegetation/Rhizosphere effect/Phosphorus speciation/Phosphorus availability分类
农业科学引用本文复制引用
韩超群,王娇,赵春雷,邵明安..毛乌素沙地典型人工植被根际土壤磷形态特征[J].土壤学报,2025,62(1):165-176,12.基金项目
国家自然科学基金项目(42107331)资助 Supported by the National Natural Science Foundation of China(No.42107331) （42107331）
