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Natural topsoil is mined and conditioned for human use and makes up the bulk of commercial topsoil available. The current rate of use and erosion outpaces soil generation. [4] It is possible to create artificial topsoil which supports some of the engineering or biological uses of topsoil. [4]
The amount of carbon a soil can sequester depends on the climate and current and historical land-use and management. [6] Cropland has the potential to sequester 0.5–1.2 Pg C/year and grazing and pasture land could sequester 0.3–0.7 Pg C/year. [7] Agricultural practices that sequester carbon can help mitigate climate change. [8]
The change in the groundwater level led to high salt concentrations in the water table. The continuous high level of the water table led to soil salination. Use of humic acids may prevent excess salination, especially given excessive irrigation. [16] Humic acids can fix both anions and cations and eliminate them from root zones. [citation needed]
Regenerative agriculture is a conservation and rehabilitation approach to food and farming systems. It focuses on topsoil regeneration, increasing biodiversity, [1] improving the water cycle, [2] enhancing ecosystem services, supporting biosequestration, [3] increasing resilience to climate change, and strengthening the health and vitality of farm soil.
Soil functions are general capabilities of soils that are important for various agricultural, environmental, nature protection, landscape architecture and urban applications. Soil can perform many functions and these include functions related to the natural ecosystems, agricultural productivity, environmental quality, source of raw material ...
In 2021, a paper which used an ensemble of 21 climate models estimated that under the most intense climate change scenario used at the time, RCP8.5, global yields of these four crops would decline by between 3–12% around 2050 and by 11–25% by the year 2100. The losses were concentrated in what are currently the major agricultural producers ...
Climate change and agriculture are complexly related processes. In the United States , agriculture is the second largest emitter of greenhouse gases (GHG), behind the energy sector. [ 1 ] Direct GHG emissions from the agricultural sector account for 8.4% of total U.S. emissions, but the loss of soil organic carbon through soil erosion ...
Climate-smart agriculture (CSA) (or climate resilient agriculture) is a set of farming methods that has three main objectives with regards to climate change. [ 1 ] [ 2 ] Firstly, they use adaptation methods to respond to the effects of climate change on agriculture (this also builds resilience to climate change ).