生态系统转换对土壤中碳水化合物的影响

被引：14
|
作者：
郭景恒
朴河春
张晓山
刘启明
机构：
[1] 中国科学院生态环境研究中心
[2] 中国科学院地球化学研究所
来源：
生态学报 | 2002年 / 08期
关键词：
碳水化合物; 六糖/五糖比值; 生态系统转换;
D O I：
暂无
中图分类号：
S153.6 [土壤成分];
学科分类号：
摘要：
采集贵州省茂兰喀斯特原始森林中森林土壤和相邻农田土壤 ,系统分析其中碳水化合物总量和各单糖的含量。并以此来查明由森林生态系统向农业生态系统转换的过程对土壤碳水化合物的影响。结果表明 :相对于森林土壤 ,农业土壤中碳水化合物总量明显降低。在农田土壤中六糖 /五糖比值有升高的趋势 ,其中以 M/X比值最为明显。这说明 ,在该转换过程中植物来源的单糖组分有所降低 ,微生物来源的则相对增加
引用
收藏
页码：1367 / 1370
页数：4
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