生态学杂志2024，Vol.43Issue(5)：1453-1462,10.DOI:10.13292/j.1000-4890.202405.035
盐碱土壤植物修复机制研究进展
Research progress about phytoremediation mechanisms in saline-sodic soils
摘要
Abstract
Saline-sodic soil is widely distributed around the world.However,transforming it into agricultural land is challenging,resulting in waste of land resources.During the past several decades,researchers have tried to explore the improvement methods of saline-sodic soil,with remarkable achievements.There are various degrees of con-straints in these enhanced methods,in terms of environment,input,and cost.As people become increasingly con-cerned about environmental issues,studies on the utilization of phytoremediation of saline-sodic soil grow quickly.Phytoremediation is a method of improving saline-sodic soils with both ecological and economic benefits.Although the growth and development of most plants are affected by saline-sodic stress,some species have evolved adaptation mechanisms to the saline-sodic environment.Those species can improve soil physical and chemical properties through physiological,morphological and molecular changes,and then achieve the effect of restoring saline-sodic soil.Here,we reviewed the mechanisms of phytoremediation in saline-sodic soil from six aspects:(1)the removal of salts from plant aboveground parts,(2)the improvement of soil physical properties through root growth,(3)the improvement of soil physical and chemical properties through plant residues,(4)the increase of H+in root exu-dates,(5)root respiration,and(6)microbial synergistic phytoremediation.By systematically summarizing and collating current research,it is noted that future work should conduct more in-depth research on how to exert the restoration effect of plants in the process of phytoremediation on the basis of time and economy efficient,aiming to maximize the phytoremediation and provide scientific support for saline-sodic soil management.关键词
盐碱土/植物修复/根区CO2/根系分泌物/根际微生物Key words
saline-sodic soil/phytoremediation/carbon dioxide in root zone/root exudate/rhizosphere microorgan-isms引用本文复制引用
周杰,王志春,杨帆..盐碱土壤植物修复机制研究进展[J].生态学杂志,2024,43(5):1453-1462,10.基金项目
黑土地保护与利用科技创新工程专项(XDA28010403)、国家自然科学基金项目(41971066)和中国科学院黑土区农业生态重点实验室开放基金项目(2020ZKHT-03)资助. （XDA28010403）
