观赏草在滨海盐碱地生态修复及综合利用中的应用前景分析OA

Ornamental grasses,as common materials for landscape greening,exhibited desirable salt and alkali tolerance and had important application values in the ecological restoration and comprehensive utilization of coastal saline-alkali land.This study focused on the application of salt-tolerant ornamental grasses in coastal saline-alkali areas,systematically sorted out their species and salt tolerance levels,and identified that they contained native wild,such as Setaria viridis,Triarrhena sacchariflora,and Phragmites australis,and artificially bred varieties,such as Leymus arenarius and Achnatherum splendens.Among them,Achnatherum splendens and Limonium bicolor adapted to saline-alkali areas with a salt content higher than 6%,while Medicago sativa and Puccinellia tenuiflora acted as pioneer species for vegetation reconstruction in tidal flats.The ecological restoration effects were analyzed,including the improvement of soil physical and chemical properties through physiological metabolism.For example,Panicum virgatum increased soil organic matter content and reduced soil salinity.These plants also realized soil consolidation,slope protection and biodiversity enhancement.This paper explored their comprehensive utilization scenarios involving multiple dimensions,including landscape greening in coastal parks and similar sites,ecological industry integration represented by eco-tourism industrial chains,and ecological engineering applications such as tidal flat management.Finally,the research prospects were proposed,covering the selective breeding of salt-alkali tolerant ornamental grasses and the transformation of utilization modes for coastal saline-alkali land.The relevant results provided a reference for the resource utilization of ornamental grasses.