摘要:滨海地区的气候差异明显、土壤条件苛刻、土质盐碱化程度高、土地生产力低,致使所在地区的植被的存活率也较低,其成为目前了滨海地区对绿化造林的建设的最大障碍。盐碱地是指土壤含有过量可溶性盐类的土地。土地盐碱化的原因是由于土壤和地下水含盐过高,在强烈的地表蒸发情况下,土镶盐分通过毛细管作用上升并积聚于土壤表层。盐碱地由于土壤内大量盐分的积累,引起一系列土壤物理性状的恶化:结构粘滞,通气性差,容重高,土温上升慢,土壤中好气性微生物活动性差,养分释放慢,渗透系数低,毛细作用强,更导致表层土壤盐演化的加剧,使植物生长发育受到抑制,甚至死亡。因此,树种的多样性与艺术性是改善滨海地区的植被生态平衡,提高滨海地区的生态稳定性与综合性,为我国实现农业化和林业化的和谐发展提供有利的条件。
关键词:滨海盐碱地;园林植物选择;后期养护
Abstract: waterfront demanding clear difference of climate, soil conditions, soil salinization degree, low land productivity, the area of vegetation survival rate is low, its become at present the construction of the coastal region of greening afforestation of the biggest obstacles. Tree species diversity and artistic quality, therefore, is to improve the waterfront vegetation ecological balance, improve the ecological stability and comprehensive of coastal areas, for our country to realize the harmonious development of agriculture and forestry provides favorable conditions.
Key words: binhai saline-alkali land; Garden plant choice; The late maintenance