NEAR-INFRARED CHARACTERISTICS OF FOREST HUMUS ARE CORRELATED WITH SOIL RESPIRATION AND MICROBIAL BIOMASS IN BURNT SOIL

被引：24
|
作者：
FRITZE, H
JARVINEN, P
HIUKKA, R
机构：
[1] Department of Forest Ecology, Finhish Forest Research Institute, Vantaa, FIN-01301
来源：
BIOLOGY AND FERTILITY OF SOILS | 1994年 / 18卷 / 01期
关键词：
BIOLOGICAL VARIATION; CONIFEROUS FOREST; NEAR-INFRARED SPECTRUM; PARTIAL LEAST-SQUARE REGRESSION; MICROBIAL BIOMASS; SOIL RESPIRATION;
D O I：
10.1007/BF00336449
中图分类号：
S15 [土壤学];
学科分类号：
0903 ; 090301 ;
摘要：
Near-infrared spectroscopy and soil physicochemical determinations (pHH2O, organic matter content, total C content, NH4+, 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.
引用
收藏
页码：80 / 82
页数：3
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