摘要
针对江苏省连云港市徐圩新区盐碱地重度黏性的特点,通过原位田间试验对比分析了种植1年狗牙根土壤与裸地对照土壤,研究了种植草本植物狗牙根对重度黏性盐碱土的改良效果和机制。结果表明:在重度黏性盐碱地种植狗牙根可以降低土壤盐分、土壤pH及Ca^(2+)、K+、Mg^(2+)、Na^(+)、Cl^(–)含量,增加土壤吸湿水、有机质与有效磷含量,同时还可以增加土壤微生物群落多样性和丰富度。总之,种植草本植物狗牙根对滨海重度黏性盐碱土壤的盐碱障碍消除和地力提升效果明显,改良成效卓著。
This study is to study the improvement effects of herbaceous plant(Cynodon dactylon)planting on the clayey coastal saline-alkali land.The coastal saline-alkali soil with and without Cynodon dactylon planting in Lianyungang City of Jiangsu Province was taken as the experimental object,soil samples of Cynodon dactylon planted for one year and the bare land(CK)were collected and determined.The results showed that Cynodon dactylon planting reduced soil salinity,pH value,and the concentrations of Ca^(2+),K+,Mg^(2+),Na^(+)and Cl^(–),increased soil moisture,the contents of organic matter,available phosphorus,and the diversity and richness of soil microbial community.In conclusion,the cultivation of Cynodon dactylon has the remarkable effects on the removal of saline-alkali barrier and the improvement of soil fertility in the clayey coastal saline-alkali land.
作者
邵天韵
燕潇
贾秉志
徐聆溪
马占红
任莹飞
隆小华
SHAO Tianyun;YAN Xiao;JIA Bingzhi;XU Lingxi;MA Zhanhong;REN Yingfei;LONG Xiaohua(College of Resources and Environmental Sciences,Nanjing Agricultural University,Nanjing 210095,China;Jiangsu Fangyang Group Co.,Ltd.,Lianyungang,Jiangsu 222065,China)
出处
《土壤》
CAS
CSCD
北大核心
2023年第4期764-770,共7页
Soils
基金
徐圩新区土壤改良及绿化植物优选研究实施项目(001-QT900-ZX017)资助。
关键词
盐碱地
土壤改良
狗牙根
土壤微生物
土壤酶
Saline alkali land
Soil improvement
Cynodon dactylon
Soil microorganism
Soil enzyme
