Research Progress on the Use of Vegetation Drainage Ditches for Rural Non-point Source Pollution Control in Southwest China
There is an urgent need to solve rural non-point source pollution such as decentralized living,breeding manure and farmland runoff.This paper summarizes the mechanism and influencing factors of Vegetated drainage ditches(VDDs)for removing nitrogen and phosphorus pollution from rural non-point sources.Plant species,climatic conditions,channel structure and hydrological characteristics affect nitrogen removal by influencing microorganisms and plants.The sedimentation of channels plays a dominant role in phosphorus removal.At the same time,the future development of VDDs in the treatment of rural non-point source pollution was proposed from the perspectives of plant selection,microbial cultivation,substrate optimization and VDDs management.
vegetationdrainage ditchesnon-point source pollutionnitrogen and phosphorus pollution
万方数据
维普
