黄土高原旱区果园生草对土壤理化性质和有机碳储量的影响

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关键词：果园生草；土壤理化性质；土壤化学计量比；土壤有机碳储量；黄土高原旱区中图分类号：S661.1；S153 文献标志码：A 文章编号：2097-2172（2025）09-0860-06doi：10.3969/j.issn.2097-2172.2025.09.014

Effects of Orchard Grass Cover on Soil Physicochemical Properties and Organic Carbon Storage in the Loess Plateau Arid Areas

LIQian，CAO Hong，WANG Zhuo，LIUXiaoxuan，RENYibin （Collgeof Agriculture and Bioengineering，Longdong University，Qingyang Gansu 745ooo，China）

Abstract：Thisstudyexploredtheeffectsoforchardgrasscoveronsoilfertityandarbonsequestrationpotential，providing theoreticalsupportforecologicalmanagementoforchardsinthearidareaoftheLoessPlateau.Usingcleantilageasacontro，the impactsoftwouliaonodesaturalgassorandVulpimuosplantingonsoilicocemicalpropertisandranibon storage inappleorchardsweredetermined.Resultsshowedthatbothnatural grasscoverand Vulpiamyurosplanting significantly improvediltrs，rlyeasngttsficaeotalrog，kalrolbleglbe phosphorus，andavailablepotassiumintheOto2cmtopsoil.Meanwhile，bothtreatmentsenhancedsoilorganicarbonstorageand carbonequestatiacityilelvaigrognlatioforltgrothecialluralsoerakd soilorganiccarbonstorageithe10to20cmlayer，whereas Vulpia myurosplantingsignificantlyincreasedorganiccarbonstoragein the O to 1O cm layer and available phosphorus content in the O to 2O cm layer.

KeyWords：Orchard grassmulching;Soil physicochemicalpropertiy;Soilstoichiometry;Soilorganiccarbonstorage;Loess Plateau arid area

庆阳市地处黄土高原腹地，苹果产业是该地区的优势产业之一。（剩余8519字）