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| 长期定位施肥田土壤酶活性的动态变化特征 | |
| 引用本文： | 孙瑞莲,赵秉强,朱鲁生,徐晶,张夫道.长期定位施肥田土壤酶活性的动态变化特征[J].生态环境,2008,17(5). |
| 作者姓名： | 孙瑞莲 赵秉强 朱鲁生 徐晶 张夫道 |
| 作者单位： | 1. 山东大学生命科学学院,山东,济南,250100;山东农业大学资源与环境学院,山东,泰安,271018 2. 中国农业科学院农业资源与农业区划研究所,北京,100081 3. 山东农业大学资源与环境学院,山东,泰安,271018 |
| 基金项目： | 国家重点基础研究发展计划(973计划) ， 科技部社会公益研究项目 |
| 摘 要： | 为探讨长期施肥条件下玉米生育期内土壤酶活性的动态变化及其与土壤肥力的关系,该文对北京褐潮土定位试验田第12年的土壤酶以及土壤养分因子进行了测定和分析.结果表明.土壤过氧化氢酶、磷酸酶在玉米拔节期出现活性高峰.土壤脲酶在玉米拔节期及成熟期出现两个活性高峰,土壤蔗糖酶在整个玉米生育期内活性变化幅度较小.长期施肥能明显提高土壤中蔗糖酶、脲酶、磷酸酶活性,其中有机肥与化肥配施对于增加土壤中蔗糖酶、脲酶、磷酸酶活性尤为显著.长期施肥降低土壤中过氧化氢酶活性.并且以NPK配施有机肥处理的土壤过氧化氢酶活性降低幅度最大.土壤酶之问及其与土壤养分因子之间具有明显相关性,其中蔗糖酶、脲酶及磷酸酶与土壤养分各因子均呈显著或极显著正相关,除碱解氮外,过氧化氢酶与其余各养分因子呈显著或极显著负相关. |
| 关 键 词： | 土壤酶活性 土壤肥力 长期定位施肥 玉米生育期 |
Dynamic changes of soil enzyme activities in long-term fertilization soil |
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| Sun Ruilian,Zhao Bingqiang,Zhu Lusheng,Xu Jing,Zhang Fudao.Dynamic changes of soil enzyme activities in long-term fertilization soil[J].Ecology and Environmnet,2008,17(5). | |
| Authors: | Sun Ruilian Zhao Bingqiang Zhu Lusheng Xu Jing Zhang Fudao |
| Institution: | Sun Ruilian1,2,Zhao Bingqiang3,Zhu Lusheng2,Xu Jing3,Zhang Fudao3 1. College of Life Sciences,Sh,ong University,Jinan 250100,China,2. College of Resource , Environment,Sh,ong Agricultural University,Taian 271018,Sh,ong,3. Institute of Agricultural Resources , Regional Planning,Chinese Academy of Agricultural Sciences,Beijing 100081 |
| Abstract: | The dynamic changes of soil enzyme activities during growth of corn,in particular,the relationship of soil enzyme activities with the contents of soil nutrients were investigated based on a 12-year long-term fertilizer experiment in Fluvo-aquic soil in Changping County,Beijing,China. The results showed that the activities of hydrogen peroxidas and phosphatase peaked at jointing stage. Urease had two peaks of concentrations at jointing stage and mature stage. Invertase activities had a little change during g... |
| Keywords: | soil enzyme activity soil nutrient long-term fertilization growth of corn |
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