黃土高原旱地蘋(píng)果園黑麥草不同生育期的重金屬殘留量分析

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關(guān)鍵詞：旱地；黑麥草；重金屬；蘋(píng)果園生草

中圖分類(lèi)號(hào)：S543.6 文獻(xiàn)標(biāo)志碼：A 文章編號(hào)：2097-2172（2025）06-0568-04

doi：10.3969/j.issn.2097-2172.2025.06.013

Analysis of Heavy Metal Residues in Lolium perenne at Different Growth Stages in Dryland Apple Orchards on the Loess Plateau

DENG Xiuxia， LUO Yanning，HUANG Maolin， CAO Siming， WU Feng， YANG Zhi （Qingyang City Grassland Workstation， Qingyang Gansu 745ooo， China）

Abstract：Inorder to efectivelytapthepotentialutilization valueofappleorchard gras，toensurethegreen useof orchard， takingLoliumperenneplantedintheorchardof NingCountyastheresearchobject，thecontentof heavymetalsinthegrowing period was measured.Theresultsindicatedthatamong the5heavymetals inperennialryegrassfromappleorchards inNing County， themonthlyconcentrationsoflead，arsenic，cadmium，andmercurywereallfarbelowthenationallimitstandards.However，the concentration of chromium exceeded the national threshold ?5mg/kg? throughout the growing season，with the highest value of 31.15 mg/kgrecordedinJuly.Theresultssugestedthatchomiumelementshouldbethekeyobjectofmonitoringandcontrolingthesafe utilizationofforageinorchards，andperennialryegrass inorchardscouldnotbeusedasthemainforageforlivestock.

KeyWords：Dryland; Lolium perenne; Heavy metal; Apple orchard grass cultivation

慶陽(yáng)市是甘肅省蘋(píng)果的主產(chǎn)區(qū)之一，已被農(nóng)業(yè)農(nóng)村部列入全國(guó)優(yōu)質(zhì)蘋(píng)果最優(yōu)產(chǎn)地和最佳適生區(qū)，蘋(píng)果產(chǎn)業(yè)目前已成為該地區(qū)農(nóng)業(yè)發(fā)展的重要支柱產(chǎn)業(yè)[]。（剩余5689字）