The process of P release and transfer becomes more complex in environments strongly disturbed by human activities. In this paper, purple soils (about 37.8% of total soils) from areas with different sea level elevations and land use were sampled in the Water Fluctuation Zone (WFZ) in the Three Gorges Reservoir (TGR) along the Yangzi River. This research investigated the P distribution characteri...

Future warming of the Arctic not only threatens to destabilize enormous pool organic carbon accumulated in permafrost soils but may also mobilize elements such as calcium (Ca) or silicon (Si). While for Greenlandic soils, it was recently shown that both have a strong effect on dioxide (CO 2 ) production with Ca strongly decreasing and Si increasing CO production, little is known about effects c...

Studying waterlogged archaeological wood moisture characteristics can provide strong support for the safe dehydration and preservation of wooden artifacts. Herein, six samples with contents 154%–968% chosen from two ancient Chinese shipwrecks, Nanhai No. 1 Changjiangkou 2, non-degraded modern relevant corresponding species were selected to study by low-temperature nuclear magnetic resonance (NM...

The objective of this investigation was to study the effects of nitrogen on tolerance to water-stress in cotton (Gossypium hirsutum L.) seedlings. Growth chamber studies with pots of washed sand were carried out in Fayetteville, USA, and Nanjing, Chinawith three water conditions (well-watered, drought-stressed, and waterlogging), and three nitrogen rates, low nitrogen (16 mM, approximately 224 ...

Methane oxidation rates observed in a topsoil covering a retired landfill are the highest reported (45 g m day) for any environment. This microbial community had the capacity to rapidly oxidize CH(4) at concentrations ranging from <1 ppm (microliters per liter) (first-order rate constant [k] = -0.54 h) to >10 ppm (k = -2.37 h). The physiological characteristics of a methanotroph isolated from t...

Here we report N(2)O emission results for freshwater marshes isolated from human activities at the Sanjiang Experimental Station of Marsh Wetland Ecology in northeastern China. These results are important for us to understand N(2)O emission in natural processes in undisturbed freshwater marsh. Two adjacent plots of Deyeuxia angustifolia freshwater marsh with different water regimes, i.e., seaso...

Waterlogging has increasingly become one of the major constraints to maize productivity in some maize production zones because it causes serious yield loss. Bulked segregant RNA-seq (BSR-seq) has been widely applied to profile candidate genes and map associated Single Nucleotide Polymorphism (SNP) markers in many species. In this study, 10 waterlogging sensitive and eight tolerant inbred lines ...

Known as "Simsar" in Nepal, wetlands are those areas which lie between the land and deepwater and remian waterlogged or submerged under water, seasonally or throughout the year. Generally the land is so muddy that one cannot easily walk over it, and water is so deep that one can neither swim nor get drowned. River floodplains, shallow margins of lakes and reservoirs, shallow and seasonal ponds,...