---

作 者 ：郭继勋,祝廷成

期 刊 ：生态学报 1993年 13卷 3期 页码：214~220

关键词：枯枝落叶分解；生境；生态因子；

Keywords:litter decomposition, habitats, ecological factors.,

摘 要 ：枯枝落叶的分解受生态环境的影响,枯枝落叶置于不同的生态环境下,其分解速率不同。例如,羊草(Leymus chinensis)在6种不同生境中的分解存在着明显差异。枯枝落叶位于地表和地下,其分解速率则不同,埋入地下的分解比位于地表的迅速。分解速率与土壤水分、地表温度和土壤pH呈指数正相关,与相对湿度呈线性正相关,它们对分解有积极的促进作用。通过生态因子对分解影响的综合分析表明,在羊草草原上,诸生态因子对枯枝落叶分解的重要性依次为:土壤水分、土壤pH、地表温度、相对湿度。

Abstract:Ecological environment had a great effect on litter decomposition. Decomposition rate was different in different ecological environments. For example,the decompositions of Le.y-mus chinensis litter in six habitats were obviously different. Decomposition rates were different in earth‘s surface and inunderground and litter in underground was decomposed faster than on earth‘s surface. Decomposition rate was linked, with ecological factors closely. Decomposition rate presented positively exponential relation wi...

---