Environmental Science
5 years ago

Plastic film mulch in Northwest China may reduce regional precipitation.

Theoretical and Applied Climatology
Regional climate effects of plastic film mulch over the cropland of arid and semi-arid regions in Northwest China using a regional climate model
Liyang Wu, Fen Qin, Jinming Feng, Jinting Huang

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Plastic film mulch in Northwest China may reduce regional precipitation.

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Plastic film mulch helps save water in Northwest China's cropland by reducing evaporation. It changes how heat and moisture move between the soil and air, affecting the regional climate. A study used a model to see how plastic mulch impacts the area. With plastic mulch, less water was needed for irrigation, and soil moisture was higher in non-irrigated areas. During early crop growth, plastic mulch increased surface temperature and reduced water vapor in the air, potentially leading to less rainfall in the region.