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

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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.

biomasscarbonmulchnitrogenplastic filmssoilstrawwater storage

Xiaomin PI、Tongxun ZHANG、Benhua SUN、Quanhong CUI、Yun GUO、Mingxia GAO、Hao FENG、David W.HOPKINS

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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

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This study was financially supported by the National High-tech R&D Program of ChinaThis study was financially supported by the National High-tech R&D Program of ChinaSci-tech Coordination and Innovation Project of Shaanxi ProvinceChinese "111" Project

2013AA1029042011AA1005032016KTZDNY03-06B12007

2017

10.15302/J-FASE-2017136

农业科学与工程前沿(英文版)

农业科学与工程前沿(英文版)

ISSN：
年,卷(期)：2017.4(2)
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