Nitrous oxide emissions during freeze/thaw periods contribute significantly to annual soil N2O emissions budgets in middle- and high-latitude areas; however, the freeze/thaw-related N2O emissions from waterlogged soils have hardly been studied in the Hulunber Grassland, Inner Mongolia. For this study, the effects of changes in land use/cover types on N2O emissions during freeze-thaw cycles were...

The article touches the problem of borders plant species natural areas. purpose is analysis spreading Stipa pennata L. ( Poaceae Barnh.) by means comparison configuration north border in Nizhegorod region with physical-geographic borders, soils, vegetations, climate and economical activity population. Noted, that (approximately 56° N.L.) are defined soil-edaphic conditions (chernozem, gray fore...

Dans cette note, les auteurs confirment la présence de Stipa apertifolia subsp. longiglumis (H. Scholz) Vázquez & Devesa dans l’Atlas saharien occidental. De même, ils actualisent connaissances sur son écologie, statut conservation et celui endémicité.

OBJECTIVE In order to improve fermentation quality of natural grasses, their silage preparation and fermentation quality in meadow steppe (MS) and typical steppe (TS) were studied. METHODS The small-scale silages and round bale silages of mixed natural grasses in both steppes were prepared using the commercial lactic acid bacteria (LAB) inoculants Chikuso-1 (CH, Lactobacillus plantarum) and c...