滨海盐碱地刺槐林土壤水盐、酶及养分动态

发布时间：2018-05-26 15:19

本文选题：滨海盐碱地 + 刺槐　；参考：《西北林学院学报》2017年05期

【摘要】：以滨海盐碱地31年生刺槐纯林为对象,研究了刺槐林不同土层土壤水盐年份变化,土壤酶活性及养分的季节变化,分析了年降水与土壤性状的相关性。结果表明,表层土壤含盐量低,深层土壤含盐量高,含水量与含盐量呈负相关;随着土层逐渐加深,土壤酶活性逐渐减弱,土壤养分含量逐渐下降;年降水主要集中在夏季,占全年降水的66%。不同土层含水量、含盐量、土壤酶活性及养分存在明显相关性,且与降水呈显著相关。
[Abstract]:The year variation of soil water and salt, the seasonal variation of soil enzyme activity and nutrient in different soil layers of Robinia pseudoacacia forest were studied, and the correlation between annual precipitation and soil properties was analyzed. The results showed that the surface soil had a low salt content and the deep soil had a high salt content, and the water content was negatively correlated with the salt content. With the deepening of the soil layer, the enzyme activity of the soil gradually decreased, the soil nutrient content gradually decreased, and the annual precipitation was mainly concentrated in summer. It accounts for 66% of the annual precipitation. Soil water content, salt content, soil enzyme activity and nutrient were significantly correlated with precipitation.
【作者单位】：山东省林木种苗和花卉站;山东省果树研究所;山东农业大学;鄄城第三中学;
【基金】：国家自然科学基金(30950016) 山东省“十一五”重点科技攻关项目(2006GG2206001) 山东省高等学校青年教师国内访问学者经费资助
【分类号】：S714;S792.27

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