Aug 6, 2021 · Rice paddies account for ~9% or the world’s cropland area and are characterized by environmental conditions promoting soil organic carbon storage, methane emissions and to a lesser extent...

Paddy soils are defined through their production environment, the typically irrigated and rainfed lowland rice-cropping systems. Cropping intensification since the 1960s has greatly increased rice yield and production, and further intensification is needed to achieve food security at the national and household level.

Jun 15, 2010 · In paddy soils the management-induced, microbially mediated redox processes control the dynamics of soil minerals and soil organic matter, which are strongly related to the microbial accessibility of C and N, but also of Fe.

The Paddy series consists of shallow, well drained soils formed in residuum from hard shale and argillite. Paddy soils are on mountains. Slopes range from 15 to 45 percent.

A paddy field is a flooded field of arable land used for growing semiaquatic crops, most notably rice and taro. It originates from the Neolithic rice-farming cultures of the Yangtze River basin in southern China, associated with pre-Austronesian and Hmong-Mien cultures.

Mar 13, 2021 · Paddy soils make up the largest anthropogenic wetlands on earth, and are characterized by a prominent potential for organic carbon (C) sequestration. By quantifying the plant- and microbial-derived C in soils across four climate zones, we identified that organic C accrual is achieved via contrasting pathways in paddy and upland soils. Paddies ...

Jun 2, 2014 · N fertilizer application is the most important source of soil N, and the three major paths of N losses (ammonia volatilization, denitrification, and leaching) are all influenced by N application, soil moisture state, and tillage practice; consequently, the paddy-upland rotation significantly affects the soil N cycle because of the contrasting ...

Paddy soils connotes a class of soils, occurring in land that is used for the growing of rice and of which the surface is submerged during all or part of the growing season. As has been pointed out by various authors, the term “paddy soil” is a generic...

Sep 20, 2021 · The chapter describes two nearby soils devloped under paddy and non-paddy conditions, their genetic differences and the effects on their chemical properties and pedogenesis related to different...

Mar 23, 2021 · Paddies are 39%–127% more efficient in soil organic C (SOC) sequestration than their adjacent upland counterparts, with greater differences in warmer than cooler climates.