HABITAT CLASSIFICATION AND SOIL RESTORATION ASSESSMENT USING ANALYSIS OF SOIL MICROBIOLOGICAL AND PHYSICOCHEMICAL CHARACTERISTICS
HABITAT CLASSIFICATION AND SOIL RESTORATION ASSESSMENT USING ANALYSIS OF SOIL MICROBIOLOGICAL AND PHYSICOCHEMICAL CHARACTERISTICS
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DOI：
10.2307/2404480
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发表时间：
1992-01-01
影响因子：
5.7
通讯作者：
SHORT, KC
中科院分区：
文献类型：
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作者：
BENTHAM, H;HARRIS, JA;SHORT, KC
1.土壤微生物和物理化学数据，从前露天煤矿恢复草地和林地，并从可比的原状栖息地。通过测定土壤脱氢酶活性来估计土壤总微生物活性。土壤三磷酸腺苷（ATP）含量测定作为土壤微生物生物量的指标和麦角甾醇作为真菌成分的大小的措施。理化分析包括总有机碳、总氮含量、含水率、容重、pH值和质地分析.多重范围检验使统计上同质的网站组被确定为个别变量，但这些都不足以单独描述栖息地。主成分分析导致>90%的方差由总数据集的前五个成分解释。分类采用聚类分析的方法，基于主成分，区分了部分生境类型.基于土壤脱氢酶活性、ATP和麦角甾醇三个微生物学指标的聚类分析可以区分不同生境类型，而仅利用土壤理化特性是不可能区分不同生境类型的.因此，建议一种基于三维排序的土壤微生物学特性的栖息地分类方法，可用于评估复垦土壤的恢复潜力和进展。
1. Soil microbiological and physico-chemical data were obtained from former opencast coalmine sites restored to grassland and woodland, and from comparable undisturbed habitats. Total soil microbial activity was estimated by measuring soil dehydrogenase activity. Soil adenosine triphosphate (ATP) content was measured as an indicator of soil microbial biomass and ergosterol as a measure of the size of the fungal component. Physico-chemical analysis included total organic carbon and total nitrogen contents, moisture content, bulk density, pH and textural analysis.2. Multiple range tests enabled statistically homogeneous groups of sites to be identified for individual variables, but these were not sufficient to characterize the habitats alone.3. Principal component analysis resulted in >90% of the variance being accounted for by the first five components, for the total data set. Classification by means of cluster analysis, based on the principal components, discriminated between some of the habitat types.4. Clustering based on the three microbiological indices (soil dehydrogenase activity, ATP and ergosterol) discriminated between different types of habitat, which was not possible using soil physical and chemical characteristics alone.5. A method of habitat classification based on a three-dimensional ordination of soil microbiological properties is therefore suggested, which could be used to assess the restoration potential and progress of reclaimed soils.