نتایج جستجو برای: drying and rewetting
تعداد نتایج: 16831943 فیلتر نتایج به سال:
Field drying trials were conducted using both field baskets as well as grab sampling techniques to study drying behaviour of switchgrass and maize (corn) stover (CS). Environmental conditions such as hourly solar radiation, vapour pressure deficit (VPD), average wind speed, rainfall amount, harvesting method, and field operations such as swath density were used as variables for model developmen...
Climate projections for the future indicate that the United Kingdom will experience hotter, drier summers and warmer, wetter winters, bringing longer dry periods followed by rewetting. This will result in changes in phosphorus (P) mobilization patterns that will influence the transfer of P from land to water. We tested the hypothesis that changes in the future patterns of drying-rewetting will ...
Current understanding of phosphorus (P) dynamics is mostly based on experiments carried out under steady-state conditions. However, drying-rewetting an inherent feature soil behavior, and as such also impacts P cycling. While several studies have looked at net changes in pool sizes with drying-rewetting, few dynamically tracked exchange using isotopes, which would give insights mean residence t...
Climate change affects running waters not only by increasing temperatures but also by increasing discharge variability as more frequent and severe floods and more frequent and longer droughts occur, especially in upper reaches. Mediterranean streams are known to experience droughts, but Central European headwaters are also beginning to be affected. The development of bacterial communities (abun...
Goal To determine the relative importance of different mechanisms that influence carbon loss from soil under variable soil-moisture conditions. The soil contains more carbon than the atmosphere and plants combined (Scurlock and Hall 1998). This carbon is important for maintaining soil fertility, controlling erosion, and the long-term storage of carbon that could be released into the atmosphere....
Soil moisture status has an important effect on the process of denitrification in paddy soils. However, it is unclear how affects ferrous iron-involved denitrification. Here, influence drying-rewetting cycles soil were studied with batch experiments. The dynamics nitrate, ammonia, Fe2+, Fe3+ and total organic carbon (TOC), as well nitrous oxide (N2O) investigated using iron-rich Jiangxi provinc...
Ongoing climate change will lead to more extreme weather events, including severe drought periods and intense drying rewetting cycles. This will directly influence microbial nitrogen (N) turnover rates in soil by changing the water content and the oxygen partial pressure. Therefore, a space for time climate change experiment was conducted by transferring intact beech seedling-soil mesocosms fro...
Foliar phosphorus (P) concentrations in beech trees are decreasing Europe, potentially leading to reductions the trees’ growth and vitality. In course of climate change, drying rewetting (DRW) cycles forest soils expected intensify. As a consequence, P leakage from root zone may increase due temporarily enhanced organic matter mineralization. We addressed questions whether sites with different ...
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