| 东北高寒地区麦田枯枝落叶分解的生态学特征的研究 |
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| 引用本文： | 苏永春,勾影波.东北高寒地区麦田枯枝落叶分解的生态学特征的研究[J].生态学杂志,2001,20(6):12-15. |
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| 作者姓名： | 苏永春 勾影波 |
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| 作者单位： | 江苏省常熟高等专科学校生化系, |
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| 摘 要： | 秸秆还田和农家肥的投入是防止土壤退化和维持健康生态农业的主要前提条件。因此对农田枯枝落叶分解转化的规律及影响因素进行研究是非常重要的。枯枝落叶的物质转化过程与土壤环境的生物因素和非生物因素都密切相关。土壤动物是有机质分解 -腐殖化作用机制的主要环节。一方面 ,它对损耗有机质有直接影响 ;另一方面 ,它对微生物种群起一种真正的生物和能量的过滤作用9] 。土壤动物对有机残体的机械粉碎作用使真正的“分解者”微生物和有机残体的接触面显著增大。同时有机残体经土壤动物消化道作用变得柔软湿润。也有利于土壤酶的作用。此外…
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| 关 键 词： | 东北高寒地区 麦田土壤 枯枝落叶 分解 生态因子 |
| 文章编号： | 1000-4890(2001)06-0012-04 |
| 修稿时间： | 2000年9月25日 |
Ecological Characters of Soil Litter Decomposition in the Frigid Region of
Northeastern China |
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| Su Yongchun,Gou Yingbo.Ecological Characters of Soil Litter Decomposition in the Frigid Region of
Northeastern China[J].Chinese Journal of Ecology,2001,20(6):12-15. |
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| Authors: | Su Yongchun Gou Yingbo |
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| Abstract: | The litter decomposition is mainly from July to August in the frigid region of Northeastern China.The relationship between seasonal variation of soil litter and 19 ecological factors were studied by grey relation analysis.The primary and secondary factor influencing the decomposition of Litter were founded as Actinomycete, Cellulase, Moisture and Temperature.Then the grey model was established as:dx 1 (1)/dt-0.06680663x 1 (1)(t)=-0.5764525x 2 (1)(t) 5.15529x 3 (1)(t)-0.2459588x 4 (1)(t)-1.142576x 5 (1)(t). |
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| Keywords: | wheat field soil litter ecologyical factor grey analysis |
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