木纤维改良剂对土壤理化性质及抗侵蚀性的改良效应研究

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关键词木纤维改良剂；土壤理化性质；抗侵蚀性；改良效应

中图分类号S156文献标识码A

文章编号 0517-6611（2025）20-0076-03

doi： 10.3969/j.issn.0517-6611.2025.20.016

AbstractOetiexploreproventtofodermedentsoilpsicohicalppertsspeiallig soilstructure，eancingwateretentiocharacterisics，ndstrengheningrosionesistance.MethodTedyamichangsinoil pH，ex⋅ changeablecidtet，ulkdsitydossistaeesteaiallaldysigdntoddileels 0% ， 3% 8% 15% ）.[Result]Moderate dose wood fiber （ 8% ，Z2 treatment） had the best improvement effect on soil physicochemical properties ： significantly reducing soil pH to 7.35 ，increasing exchangeable acid content to 5.51cmol/kg ，optimizing soil bulk density to 1.30g/cm3 ，and reducing runoff and sediment yield by 35.2% and 41.8% ，respectively.There was a dose threshold for the improvement effect of wood fiber，and excessive addition （ 15% ）could weaken soil structure stability.[Conclusion]This study provides a scientific basis for the application of wood fibernsoilimprovementvalingitsompehsiehansmfgulatingtecidbasebfingsste，aningateration function，and balancing pore structure.

Key WordsWood fiber amendment;Soil physical and chemical property;Erosion resistance;Aamendment ffect

土壤退化是全球农业和生态领域面临的严峻挑战，尤其在干旱半干旱地区，土壤结构破坏、持水能力下降及抗侵蚀性能减弱等问题严重制约生态恢复与农业生产。（剩余5170字）