文献类型：期刊文献

中文题名：石墨烯添加对无芒雀麦生长及土壤养分的影响

英文题名：Impact of Graphene Addition on the Growth of Bromus inermis and Soil Nutrients

作者：牧仁[1] 乔俊[2] 王丹阳[1] 安景源[1] 刘雅婧[1] 李新乐[1]

第一作者：牧仁

机构：[1]中国林业科学研究院沙漠林业实验中心/内蒙古磴口荒漠生态系统定位观测研究站,内蒙古巴彦淖尔015200;[2]煤基生态碳汇技术教育部工程研究中心/山西大同大学,山西大同037009

年份：2024

卷号：46

期号：10

起止页码：133-143

中文期刊名：中国草地学报

外文期刊名：Chinese Journal of Grassland

收录：CSTPCD;;北大核心:【北大核心2023】；CSCD:【CSCD2023_2024】；

基金：中央引导地方科技发展项目(2022ZY0177);内蒙古自治区自然科学基金项目(2024MS03067);煤基生态碳汇技术教育部工程研究中心2022年度开放基金(MJST2022-04)。

语种：中文

中文关键词：石墨烯;人工草地;无芒雀麦;土壤养分;综合分析

外文关键词：Graphene;Artificial grassland;Bromus inermis;Soil nutrient;Comprehensive analysis

分类号：S543.8

摘要：为探究石墨烯添加对干旱区无芒雀麦人工草地牧草生长和土壤养分的影响。以无芒雀麦(Bromus inermis)为材料,设置5个石墨烯添加水平:0 mg/L(C0)、25 mg/L(C1)、50 mg/L(C2)、100 mg/L(C3)、200 mg/L(C4)。2023年6月1日进行盆栽种植,同时浇灌不同浓度石墨烯,于出苗后第45 d、75 d和100 d测定牧草生长指标及土壤理化性质。结果表明:(1)石墨烯添加可以促进无芒雀麦生长,无芒雀麦基径、叶宽和叶长分别在C2处理下达到最大值,较C0处理增加12.32%、39.33%和13.10%(P<0.05);无芒雀麦总生物量鲜重和干重在C2处理下达到最大值,较C0处理分别增加44.28%和47.91%(P<0.05)。(2)土壤速效氮和速效磷在C2处理下达到最大值,较C0处理增加22.99%和12.97%(P<0.05),土壤速效钾在C4处理达到最大值,较C0处理增加24.26%(P<0.05)。(3)经过主成分分析,将19个指标简化为5个相对独立的指标,累计贡献率为84.257%,总生物量干重贡献最大;在此基础上通过聚类分析将石墨烯浓度分为3类,其中50 mg/L处理效果最好。适量石墨烯添加可以提高土壤养分含量,促进无芒雀麦生长,但高浓度石墨烯添加将产生抑制作用。
To investigate the effects of graphene addition on the growth of artificial grassland grass and soil nutrients in arid areas of Bromus inermis.Five levels of graphene supplementation(0 mg/L,25 mg/L,50 mg/L,100 mg/L,and 200 mg/L)were applied to potted Bromus inermis plants on June 1,2023.Growth parameters of the grass and soil physicochemical characteristics were evaluated on the 45th,75th,and 100th days post-planting.The findings indicated that:(1)Graphene had a positive impact on the growth of Bromus inermis,with the base diameter,leaf width,and leaf length of Bromus inermis reaching their peak under the C2 treatment,exhibiting increases of 12.32%,39.33%,and 13.10%compared to the C0 treatment(P<0.05).Additionally,the total biomass fresh weight and dry weight of Bromus inermis was highest under the C2 treatment,showing respective increases of 44.28%and 47.91%compared to the C0 treatment(P<0.05).(2)The levels of available nitrogen and available phosphorus in the soil reached their peak under the C2 treatment,showing a respective increase of 22.99%and 12.97%compared to the C0 treatment(P<0.05).Additionally,the available potassium content reached its maximum under the C4 treatment,exhibiting a 24.26%increase compared to the C0 treatment(P<0.05).(3)Following princi?pal component analysis,19 indicators were reduced to 5 relatively independent indicators,accounting for a cumulative contribution rate of 84.257%.Among these indicators,total biomass dry weight made the larg?est contribution.Subsequently,cluster analysis was used to categorize the concentration of graphene into three groups,with the 50 mg/L treatment yielding the most favorable results.The presence of graphene was found to enhance the growth of Bromus inermis by augmenting soil nutrient levels;however,excessive concentrations of graphene were observed to impede the growth of Bromus inermis.