Near-infrared characteristics of forest humus are correlated with soil respiration and microbial biomass in burnt soil
Near-infrared characteristics of forest humus are correlated with soil respiration and microbial biomass in burnt soil
复制标题
森林腐殖质的近红外特征与土壤呼吸和烧焦土壤微生物量相关
DOI：
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发表时间：
1994
影响因子：
6.5
通讯作者：
R. Hiukka
中科院分区：
文献类型：
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作者：
H. Fritze;Petri Järvinen;R. Hiukka
近红外光谱和土壤理化测定（pHH 2 O，有机质含量，总C含量，NHinf 4sup+，总N含量，阳离子交换容量和盐基饱和度）被用来表征火灾或木灰处理的腐殖质样品。利用光谱和土壤理化分析数据分别对土壤呼吸和微生物生物量C进行偏最小二乘回归分析。从理化和光谱表征获得的第一个回归分量分别解释了10-12%和60-80%的生物学变异。这表明，从近红外光谱收集的有机物质的信息是非常有用的解释森林腐殖质的生物变异。
Near-infrared spectroscopy and soil physicochemical determinations (pHH2O, organic matter content, total C content, NHinf4sup+, total N content, cation-exchange capacity, and base saturation) were used to characterize fire-or wood ash-treated humus samples. The spectroscopic and the soil physicochemical analysis data from the humus samples were used separately to explain observed variations in soil respiration and microbial biomass C by partial least-square regression. The first regression component obtained from the physicochemical and spectroscopic characterization explained 10–12% and 60–80% of the biological variation, respectively. This suggests that information on organic material collected from near-infrared spectra is very useful for explaining biological variations in forest humus.