摘要
以鄂尔多斯满来梁露天煤矿排土场不同林龄沙棘林土壤为试材,排土场无植被样地为对照,以时间代替空间的方法对不同林龄林下沙棘土壤进行采样,对比分析土壤容重、土壤含水率、土壤孔隙度、有机质、土壤pH、速效氮、速效磷、速效钾,研究了不同林龄沙棘对土壤质量的影响,以期为露天煤矿排土场植被恢复提供参考依据。结果表明:不同沙棘样地内土壤物理性质存在差异性,其中土壤含水率、土壤孔隙度变化较为显著,分别上升了1.658%、4.140%。通过种植沙棘土壤化学性质总体来说得到了一定程度改善,其中速效氮、速效钾较为明显,分别提高了8.36、11.93 mg·kg^(-1)。通过土壤质量指数(SQI)计算可得,土壤质量随着沙棘林龄增长升高了0.05,土壤质量在一定程度上得到了有效改善。
Taking the soil of different forest ages of seabuckthorn forest in the dump of Manlailiang Open-pit Coal Mine in Ordos as the test material,and the non-vegetation sample plot in the dump as the control group,the soil of seabuckthorn under different forest ages was sampled by time instead of space.The soil bulk density,soil moisture content,soil porosity,organic matter,soil pH,available nitrogen,available phosphorus and available potassium were compared and analyzed.The effects of different forest ages of seabuckthorn on soil quality were studied,in order to provide reference for vegetation restoration in open-pit coal mine dumping sites.The results showed that there were differences in soil physical properties in different seabuckthorn plots,among which soil moisture content and soil porosity changed significantly,increasing by 1.658%and 4.14%respectively.In general,the soil chemical properties of sea buckthorn were improved by planting sea buckthorn.Among them,available nitrogen and available potassium were more obvious,which increased by 8.36 mg·kg^(-1) and 11.93 mg·kg^(-1),respectively.According to the calculation of soil quality index(SQI),the soil quality increased by 0.05 with the increase of seabuckthorn forest age,and the soil quality was effectively improved to a certain extent.
作者
陈士超
刘彤彤
张庆
张亮
贾治
石建平
CHEN Shichao;LIU Tongtong;ZHANG Qing;ZHANG Liang;JIA Zhi;SHI Jianping(College of Desert Management,Inner Mongolia Agricultural University,Hohhot,Inner Mongolia 010018;Ulan Coal(Group)Co.Ltd.,Ordos,Inner Mongolia 017200;Agricultural Science Station of the People′s Government of Jinshan Town,Kalaqin Banner,Chifeng City,Chifeng,Inner Mongolia 024400)
出处
《北方园艺》
CAS
北大核心
2024年第17期76-83,共8页
Northern Horticulture
基金
鄂尔多斯市科技重大专项资助项目(2022EEDSKJZDZX012)
内蒙古自治区风沙物理与防沙治沙工程重点实验室资助项目
荒漠生态系统保护与修复国家林业和草原局重点实验室资助项目。
关键词
土壤质量
不同林龄
露天煤矿
沙棘
soil quality
different forest ages
open-pit coal mine
seabuckthorn
