| 增氧对池塘沉积物酶活性的影响 |
| Effects of Different Aerations on Sediment Enzymes Activity and Its Relations with Nutrients |
| 投稿时间：2011-06-02 修订日期：2011-08-23 |
| DOI： |
| 中文关键词:增氧 酶活性 相关性分析 |
| 英文关键词:aerations enzyme activity correlation analysis |
| 基金项目: 农业部公益性行业科研专项(3-54);江苏省科技厅平台项目(BM2009909);江苏省科技支撑计划(BE2009690) |
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| 中文摘要: |
| 比较研究了微孔和机械2种增氧养殖模式下4种沉积物酶活性的动态变化,并分析了所测酶活性与养分因子的相关性。结果表明:(1)4种酶活性随水温的季节性变化较为明显,其中蛋白酶活性与脲酶活性变化呈单峰状曲线,蔗糖酶各月波动较大,过氧化氢酶活性整体呈上升趋势。(2)池塘沉积物中酶活性对不同增氧方式有明显的响应,2种增氧均可提高4种沉积物中酶活性,其中微孔增氧提高池塘沉积物中酶活性的效果显著(P<0.05)。(3)所测得的沉积物养分因子与酶活性相关性不一,其中蛋白酶与沉积物中有机质、全磷、速效氮和速效磷含量呈显著正相关(P<0.05),脲酶活性与全氮和速效氮含量呈显著正相关(P<0.05),过氧化氢酶与全磷和速效磷含量呈显著正相关(P<0.05),蔗糖酶活性与所测养分无显著相关性。 |
| 英文摘要: |
| A comparative study on the dynamic changes of four sediment enzymatic activity and an analysis of the relationship between enzyme activity and nutrient factors were made. The results showed that: (1) the seasonal variations of four enzyme activity is relatively obvious. Protease activity and urease activity showed “single peak curves"，while the soil catalase activity tended to increase in whole，and the soil invertase activity changed a lot between months. (2)Obvious response of soil enzyme activity to different aeration methods were observed. Both two aerations can increase the four soil enzyme activities，while the effect of micropore aeration is outstanding(P<0.05).(3)The correlations between the soil enzyme activities and soil nutrients factors were different. There was remarkably positive correlations between protease activity and organic matter(O.M)，total nitrogen(TN)，total alkaline，hydrolytic nitrogen and rapid available phosphorus(P<0.05)，between soil urease activity and total nitrogen(TN ) and quick available nitrogen ( P<0.05)，as well as between catalse and total phosphorus(TP) and rapid available P ( P<0.05)，while obvious correlations between the soil invertase activities and the nutrient factors were observed.
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| 林海,周 刚,李旭光,周 军,张彤晴.2011.增氧对池塘沉积物酶活性的影响[J].水生态学杂志,32(5):100-104. |
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