期刊论文

中文

土壤通报

0564-3945

2010

41

1

93-99

10.19336/j.cnki.trtb.2010.01.020

湖南省教育厅（2007C008）项目资助；

本校为第一机构

针对不同经营模式对林地土壤的物理性质、化学性质和生物学性质的影响,采用主成分分析方法直观定量地研究了亚热带区域几种典型人工林生态系统林地的土壤质量指数和土壤退化指数,揭示了土壤质量指数之间的相关性和差异性、以及土壤退化指数之间的相关性和差异性,并很好地识别出了土壤质量指数和土壤退化指数的主要成分.分析结果基本上反映了不同生态类型林地土壤质量状况,主成分分析土壤质量指数得分以常绿阔叶林最高,其次是混交林和阔叶纯林.连栽杉木纯林最低;主成分分析土壤退化指数表明,与次生常绿阔叶林比较,其中连栽杉木纯林退化幅度最大,而混交林和阔叶纯林次之.从而对其林地土壤质量进行...

Aiming at the influences on the physical quality, chemical quality and biological quality of forest land, under the different plating-models, the soil quality index and the soil degeneration index of forest stand in several typical plantation forest ecosystems in subtropical region were studied by using the method of principal component analysis, and the correlation and otherness of the soil quality index as well as the soil degeneration index were revealed, so that could recognize principal component of the soil quality index and the soil degeneration index accurately. As a result, NBS got th...