环渤海湾地区不同种植年限设施土壤酶活性变化

发布时间：2018-03-12 15:52

本文选题：环渤海湾地区　切入点：日光温室　出处：《中国蔬菜》2016年09期 　论文类型：期刊论文

【摘要】：选取环渤海湾地区13个不同地点不同种植年限的日光温室蔬菜土壤为研究对象,测定0~30cm与30~60cm土层的蔗糖酶、多酚氧化酶和过氧化物酶的活性,分析其变化规律。结果表明:同一种植年限设施土壤蔗糖酶与过氧化物酶活性在0~30cm土层普遍高于30~60cm土层,而多酚氧化酶活性在0~30cm土层低于30~60cm土层。土壤中蔗糖酶活性随种植年限的增加无显著性变化;多酚氧化酶活性与过氧化物酶活性在0~30cm土层均随种植年限的增加呈下降趋势,但在30~60cm土层无显著差异。蔗糖酶、多酚氧化酶和过氧化物酶活性在京津冀、苏鲁和辽三大地区间差异显著。因此,为了维持日光温室土壤的可持续利用,提高土壤肥力,应适当控制连续种植的年限,本试验结果表明连续蔬菜种植年限以15a以内为宜。
[Abstract]:The activities of sucrase, polyphenol oxidase and peroxidase in soil layers of 30 cm and 30 0 cm were determined in 13 greenhouse vegetable soils with different planting years in 13 locations around Bohai Bay. The results showed that the activities of sucrase and peroxidase were generally higher in 0 ~ 30 cm soil layer than in 30 ~ 60 cm soil layer in the same planting years. However, the polyphenol oxidase activity in 0 ~ 30 cm soil layer was lower than that in 30 ~ 60 cm soil layer. There was no significant change in sucrose enzyme activity with the increase of planting years, while the polyphenol oxidase activity and peroxidase activity in 0 ~ 30 cm soil layer decreased with the increase of planting years. But there was no significant difference in the soil layer of 30 ~ 60cm. The activities of sucrase, polyphenol oxidase and peroxidase were significantly different in the three regions of Beijing-Tianjin-Hebei, Sulu and Liaoning. Therefore, in order to maintain the sustainable utilization of the soil in solar greenhouse, the soil fertility was improved. The years of continuous planting should be controlled properly. The results showed that the suitable years of continuous vegetable cultivation were within 15 years.
【作者单位】：设施蔬菜生长发育调控北京市重点实验室中国农业大学园艺学院;临沂大学生命科学学院;
【基金】：国家大宗蔬菜产业技术体系项目(CARS-25-C-12) 环渤海湾地区设施蔬菜优质高效生产协同创新中心项目
【分类号】：S626;S154.2

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