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OALib Journal期刊
ISSN: 2333-9721
费用：99美元
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两种米草(叶)的分解及其营养成分的初步研究
, PP. 367-372
Abstract:
高生物量的米草植物枯死后分解成碎屑颗粒,成为河口、近海及海滩本身异养生物的食源。作者采用尼龙袋法模拟自然条件下的分解过程,结果表明,低低滩的大米草(枯叶)年分解速度为90%左右;低滩的大米草(枯叶)在8个月内分解速度接近80%,相应的互花米草(枯叶)为76%。在分解过程中两种米草的残体(包括部分碎屑)蛋白质合量比原来枯叶的含量增加,最高可增加到200%以上;纤维素含量明显下降;粗灰分、碳水化合物和脂肪的含量与分解物所处不同高程而有明显差异。此外,还测定和比较了在不同风浪条件下生长的大米草地上部分和地下部分生物量以及地上部分枯死量的季节性变化。
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