喷施液态地膜对盐碱地植被和土壤理化因子的影响  

Effects of Liquid Film on Vegetation and Soil Physical and Chemical Factors in Saline-alkali Land

作　　者：黎轩 刘福德[2] 宋莉 赵斌[1] 武晓燕[1] 李德生[2] 秦洁 LI Xuan;LIU Fu-de;SONG Li(Tianjin Recyclable Resources Institute,All China Federation of Supply and Marketing Cooperatives,Tianjin 300191;School of Environmental Science and Safety Engineering,Tianjin University of Technology,Tianjin 300384)

机构地区：[1]中华全国供销合作总社天津再生资源研究所,天津300191 [2]天津理工大学环境科学与安全工程学院,天津300384

出　　处：《安徽农业科学》2023年第17期68-71,共4页Journal of Anhui Agricultural Sciences

基　　金：国家重点研发计划项目(2018YFF0213500);中华全国供销合作总社天津再生资源研究所自主研发项目(ZSZY/YF-2021-001,ZSZY/YF-2023-201)。

摘　　要：[目的]探讨喷施液态地膜对盐碱地植被和土壤理化性质的影响。[方法]在轻度退化的盐碱地上设置了CK(0 kg/hm^(2))、LF(375.0 kg/hm^(2))、HF(562.5 kg/hm^(2))3个液态地膜喷施梯度试验,探讨不同液态地膜喷施量对盐碱化土壤地上植被生物量、有机碳含量、土壤养分和酸碱度等指标的影响。[结果]随着液态地膜喷施量的增加,土壤理化性质呈现不同的变化趋势,与对照相比,562.5 kg/hm^(2)的喷施量使土壤有机碳提高了7.79%,全磷含量提高了111.11%,地上生物量提高了65.3%;在375.0 kg/hm^(2)的喷施情况下土壤全氮超过对照样地的46.2%。[结论]液态地膜的使用显著提高了植物地上部分生物量和土壤有机碳储量,增加了土壤中全磷含量,有助于盐碱地土壤改良和固碳增汇能力的提升。[Objective]To explore the effect of liquid film on the vegetation and soil physical and chemical properties in saline-alkali land.[Method]Three gradient experiments of liquid film[CK(0 kg/hm^(2)),LF(375.0 kg/hm^(2))and HF(562.5 kg/hm^(2))]were set up on slightly degraded saline alkali land.The effects of different liquid film spraying amount on aboveground vegetation biomass,organic carbon content,soil nutrients and acidity in saline alkali soi were explored.[Result]With the increase of liquid film spraying amount,soil physical and chemical properties showed different trends.Compared with the control,the spraying amount of 562.5 kg/hm^(2)increased soil organic carbon by 7.79%,total phosphorus content by 111.11%,aboveground biomass by 65.3%.Under the condition of 375.0 kg/hm^(2)spraying,the soil total nitrogen exceeded 46.2% of the control plot.[Conclusion]The use of liquid film significantly increased the aboveground biomass of plants and the storage of soil organic carbon,increased the content of total phosphorus in the soil,and contributed to the improvement of saline alkali soil and the enhancement of carbon sequestration and sink capacity.

关 键 词：液态地膜 土壤有机碳 生物量 盐碱地 土壤氮磷 

分 类 号：S316[农业科学—作物栽培与耕作技术]