Effects of flue gas desulfurization gypsum and clover planting on qualities of soil and winter jujube in coastal saline-alkali orchard of north China  

作　　者：Qi Shao Xuejing Xia Guihua Li Hui Li Jitong Lin Yanhong Lou Quangang Yang Hui Wang Zhongchen Yang Hong Pan Yuping Zhuge 

机构地区：[1]National Engineering Research Centerfor Efficient Utilization of Soil and Fertilizer Resources,College of Resources and Environment,Shandong Agricultural University,Tai'an271018,China [2]Tai'an City Management Comprehensive Service Center,Tai'an 271021,China

出　　处：《Soil Ecology Letters》2024年第1期141-152,共12页土壤生态学快报（英文）

基　　金：supported by the Forestry Science and Technology Innovation Project of Shandong Province(grant number 2019LY009);the National Key Basic Research Program of China(grant number2021YFD190090101).

摘　　要：Flue gas desulfurization gypsum and clover planting alleviated the soil salinization stress.Soil pH and total phosphorus affected the bacterial communi-ties.Total phosphorus affected the fungal communities.Flue gas desulfurization gypsum and clover planting improved jujube quality.The coastal area of Shandong Province,characterized by coastal saline tidal soil,is one of the main production areas of winter jujube in China.However,the low soil fertility and poor soil structure in jujube orchard restricted the development of the jujube industry.The objectives of this study were to 1)evaluate the effect of application of flue gas desulfurization(FGD)gypsum and clover planting on soil quality improvement and soil microbial community structure of jujube orchard;2)investigate the effects of two measures on the nutrition and quality of winter jujube.The results showed that FGD gypsum reduced the soil total salt content by 65.6%,and clover planting increased the soil organic matter content by 30.7%,which effectively alleviated the soil salinization stress and improved the soil structure.Soil pH and total phosphorus(TP)were the main determinants influencing bacterial community composition,and TP was the dominant factor of the fungal community composition in the saline-alkali soils.Meanwhile,FGD gypsum addition and clover planting significantly increased the sugar degree and Vc content of winter jujube,thus improved jujube quality,and further contributed to the ecological sustainable development of winter jujube industry.

关 键 词：saline-alkali soils winter jujube bacterial community fungal community fue gas desulfurization gypsum clover planting 

分 类 号：S15[农业科学—土壤学]