水土保持学报2012，Vol.26Issue(4)：133-137,5.
黄河三角洲退化刺槐林地不同改造模式下土壤酶活性及养分特征
Soil Enzyme Activities and Nutrient Characteristics of Different Improving Patterns in the Yellow River Delta Area
摘要
Abstract
In order to explore the soil improvement impact by different improving patterns including cotton field, pure forest of Fraxinus chinensis, agro-forestry of F. chinensis＋cotton, mixed forest of F. chinensisq- Robinia pseucdoacacia and unimproved heavy degradation experiment as a comparison on badly degraded Robinia pseucdoacacia plantation in Yellow River Delta area, soil enzyme activities, nutrient characteristics and their relationship under different improving patterns were analyzed comparatively. The results showed that significant differences existed in soil nutrient and soil enzyme activity, agro-forestry and mixed forest had better effects in the restoration of degraded soil. Planting cotton was predatory ways in land use. It was disadvantageous to the sustainable land use. On the whole, phosphatase, soil urease, polyphenol oxidase and peroxidase showed stronger positive correlations with soil nutrient, which can be an indicator of evolution characteristics of soil quality under different improving patterns in this area. The SEI changed with an order of mixed forest 〉agro-forestry 〉pure forest 〉cotton field. Soil enzyme activity and physicochemical proper- ties of mixed forest and agro-forestry were better than pure forest or cotton filed. Therefore, it＇s proposed that mixed forest and agro-forestry should be fostered and managed firstly in the future.关键词
改造模式/黄河三角洲/刺槐林/土壤养分/土壤酶活性Key words
improving patterns Yellow River Delta Robinia pseucdoacacia plantation soil nutrient~ soil enzyme activity分类
农业科技引用本文复制引用
王群,夏江宝,张金池,张静,刘京涛..黄河三角洲退化刺槐林地不同改造模式下土壤酶活性及养分特征[J].水土保持学报,2012,26(4):133-137,5.基金项目
国家“十一五”科技支撑计划项目 （）
滨州科学发展行动计划项目 （）
