Effects of mulching for water conservation on soil carbon, nitrogen and biological properties

2017年第4卷第2期

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《农业科学与工程前沿（英文）》 >> 2017年第4卷第2期 doi: 10.15302/J-FASE-2017136

Effects of mulching for water conservation on soil carbon, nitrogen and biological properties

. Key Laboratory of Plant Nutrition and the Agri-environment in Northwest China of Ministry of Agriculture/College of Natural Resources and Environment, Northwest A&F University, Yangling 712100, China.. Institute of Water Saving Agriculture in Arid Areas of China, Northwest A&F University, Yangling 712100, China.. College of Water Resources and Architectural Engineering, Northwest A&F University, Yangling 712100, China.. Institute of Water and Soil Conservation, Chinese Academy of Sciences and Ministry of Water Resources, Yangling 712100, China.. The Royal Agricultural University, Cirencester, Gloucestershire GL76JS, UK

录用日期： 2017-03-01 发布日期： 2017-06-07

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摘要

The effect of mulching with straw, white plastic film and black plastic film for improving soil water storage and on the soil properties was examined in a wheat-maize rotation system on Loess soil in northwestern China. All the mulches improved the water storage to some extent and led to warmer soils. However, the organic C and total N contents of the soils declined significantly under the mulches, particularly the plastic film mulches, and this could have long-term detrimental effects on soil quality and the sustainability of the some mulching practices.

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biomass ; carbon ; mulch ; nitrogen ; plastic films ; soil ; straw ; water storage