Humus Index
نویسندگان
چکیده
منابع مشابه
Humus and time: a love story
HAL is a multi-disciplinary open access archive for the deposit and dissemination of scientific research documents, whether they are published or not. The documents may come from teaching and research institutions in France or abroad, or from public or private research centers. L’archive ouverte pluridisciplinaire HAL, est destinée au dépôt et à la diffusion de documents scientifiques de niveau...
متن کاملIMPACt OF hUMUS SUBStAnCES On GROUnDWAtER QUALIty
humic substances (hS) constitute a large part of organic matter found in aquatic environment. the hS strongly interact with both inorganic and organic pollutants. Occurrence of the hS in groundwater accounts for many problems with treatment procedures. these natural components cause an increased intensity of water colour, affect its taste and odour, hinder removal of iron, manganese and other m...
متن کاملAn Investigation of Humus Disintegration by Spatial-Temporal Regression Analysis
We examine the hypothesis of an increase of humus disintegration by analyzing chemical substances measured in the seepage water of a German forest. Problems arise because of a large percentage of missing observations. We use a regression model with spatial and temporal effects constructed in an exploratory data analysis. Spatial dependencies are modelled by random effects and an autoregressive ...
متن کاملThe heterogeneity of humus components in a virgin beech forest
A non-random sampling design allowed to distinguish within a virgin beech ecosystem two main components of humus profile heterogeneity. The stratification of the profile into horizons reflects changes in the composition of the soil/litter matrix occurring under the influence of the anisotropic deposition of leaf and wood litter and the stratified occurrence of soil organisms (roots, microbes, a...
متن کاملFire-derived charcoal causes loss of forest humus.
Fire is a global driver of carbon storage and converts a substantial proportion of plant biomass to black carbon (for example, charcoal), which remains in the soil for thousands of years. Black carbon is therefore often proposed as an important long-term sink of soil carbon. We ran a 10-year experiment in each of three boreal forest stands to show that fire-derived charcoal promotes loss of for...
متن کاملذخیره در منابع من
با ذخیره ی این منبع در منابع من، دسترسی به آن را برای استفاده های بعدی آسان تر کنید
ژورنال
عنوان ژورنال: Soil Science Society of America Journal
سال: 2002
ISSN: 0361-5995
DOI: 10.2136/sssaj2002.1996