中国农业科学院农业信息研究所 中国农学会
Agricultural Information Institute of CAAS China Association of Agricultural Science Societies
En
Ch
中国农业科学院农业信息研究所 中国农学会 主办

AI检索

订阅

返回顶部
当前位置: 首页 > 文章 > 土壤脲酶活性与底物浓度定量关系研究 西北农业学报 2001,10 (1) 62-66
Position: Home > Articles > The Study on Quantitative Relationship between Soil Urease Activity and Substrate Concentration Acta Agriculturae Boreali-occidentalis Sinica 2001,10 (1) 62-66

土壤脲酶活性与底物浓度定量关系研究

作  者：
和文祥;刘恩斌;朱铭莪
单  位：
延安市农业学校;西北农林科技大学资源环境学院
关键词：
土壤脲酶;尿素浓度;定量关系
摘  要：
通过对陕西 7种类型 1 9个土样脲酶活性与底物浓度关系的研究 ,表明 Y=a× b×x/ ( 1 + b×x)模型能较好地表征二者的关系 ,并得到了最大表观脲酶活性 Umax,同时揭示出酶促反应存在着吸附机制 ;除水稻土和黄褐土外 ,其余土样的 Umax值均呈现高肥力大于低肥力的规律性变化 ,相关分析发现在不同生态区中土壤脲酶特征截然不同 ,其 Umax值有明显差异 ,故在分析时需区分开来 ;只有同一生态区中土壤脲酶的 Umax与肥力密切相关 ,可作为土壤肥力指标之一。
译  名：
The Study on Quantitative Relationship between Soil Urease Activity and Substrate Concentration
作  者：
HE Wen xiang 1,2 , LIU En bin 3, ZHU Ming e 1 (1.College of Resources and Environment, Northwest Sci Tech University of Agricultural and Forestry, Yangling Shaanxi\ 712100; 2. The Institute of Soil Science, China Academia Sinca, Nanjing Jia
关键词：
Soil urease activity; Urea concentration; Quantitative relationship
摘  要：
The relationship was studied between soil urease activity and urea concentrations in nineteen samples of seven soil types in Shaanxi Province. It shows as follows:The model Y=a×b×x/(1+b×x ) can be better expressed their relationship because the equation is the most significant correlation, acquired the maximum apparent urease activity U max when urea concentration is infinity, there is a adsorption mechanism in enzyme reaction; The urease U max of higher fertility samples are greater than that of lower fertility except paddy soil and Yellow cinnamon soils, It must be distinguished to analyses because soil urease has apparent polarity characteristics under different ecology environments, urease U max can be an index of soil fertility because it is remarkable correlation with soil fertility level by correlation analyses in the same ecology.

相似文章

导出引用
计量
文章访问数: 9
HTML全文浏览量: 0
PDF下载量: 0

所属期刊

推荐期刊

友情链接Friendly link
农业信息研究所Agricultural information institute 农业智能知识服务平台Agricultural intelligent knowledge service platform 农业学术服务平台Agricultural Knowledge Service System 中国知网CNKI 维普网VIP 万方WANFANG DATA
联系我们Contact us

电话Tell：010-82109652-808

邮箱E-mail：agrijournal@caas.cn

服务Service
关于我们About us 意见建议Opinions and suggest
版权说明Copyright
单位：中国农业科学院农业信息研究所 中国农学会 © 2017中国农业科学院农业信息研究所 ICP备案号：京ICP备09089781号-46