The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain

Reclaimed water is an alternative water source which could alleviate the shortage of water resources in agricultural systems. Many researchers have studied the effect of reclaimed water on soil environment, crop yield, etc. However, carbon sequestration in reclaimed water irrigated agricultural syst...

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Autores principales:	Yanbing Chi, Qiang Zheng, Peiling Yang, Shumei Ren, Ning Ma
Formato:	article
Lenguaje:	EN
Publicado:	MDPI AG 2021
Materias:	CH<sub>4</sub> uptake photosynthesis carbon exchange soil environment water-filled pore space types of fertilizer Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
Acceso en línea:	https://doaj.org/article/35d34c1d0f60460a96b9843d5e02f513
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spelling	oai:doaj.org-article:35d34c1d0f60460a96b9843d5e02f5132021-11-25T19:16:07ZThe Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain10.3390/w132232602073-4441https://doaj.org/article/35d34c1d0f60460a96b9843d5e02f5132021-11-01T00:00:00Zhttps://www.mdpi.com/2073-4441/13/22/3260https://doaj.org/toc/2073-4441Reclaimed water is an alternative water source which could alleviate the shortage of water resources in agricultural systems. Many researchers have studied the effect of reclaimed water on soil environment, crop yield, etc. However, carbon sequestration in reclaimed water irrigated agricultural systems is less studied. This study investigates methane uptake and photosynthesis in reclaimed water irrigation systems contributing to carbon sequestration estimation and analyzes the important factors impacting them. The results show that CH<sub>4</sub> uptake is related to soil water-filled pore space (WFPS) with a quadratic and it has the highest uptake when WFPS is between 40 and 50%. Long-term reclaimed water irrigation could significantly decrease (<i>p</i> < 0.05) CH<sub>4</sub> uptake and macroaggregate stability in the topsoil. However, reclaimed water had no significant impact on photosynthesis in comparison. The type of fertilizer is an important factor which impacts CH<sub>4</sub> emission from soil; urea had a lower CH<sub>4</sub> uptake and a higher CO<sub>2</sub> emission than slow-released fertilizer. Overall, reclaimed water irrigation could effectively decrease soil carbon sequestration. A soil wetted proportion level of 40–50% was recommended in this study for favorable methane oxidation. Slow-released fertilizer in reclaimed water irrigated agriculture could better control soil carbon emission and soil carbon absorption.Yanbing ChiQiang ZhengPeiling YangShumei RenNing MaMDPI AGarticleCH<sub>4</sub> uptakephotosynthesiscarbon exchangesoil environmentwater-filled pore spacetypes of fertilizerHydraulic engineeringTC1-978Water supply for domestic and industrial purposesTD201-500ENWater, Vol 13, Iss 3260, p 3260 (2021)
institution	DOAJ
collection	DOAJ
language	EN
topic	CH<sub>4</sub> uptake photosynthesis carbon exchange soil environment water-filled pore space types of fertilizer Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500
spellingShingle	CH<sub>4</sub> uptake photosynthesis carbon exchange soil environment water-filled pore space types of fertilizer Hydraulic engineering TC1-978 Water supply for domestic and industrial purposes TD201-500 Yanbing Chi Qiang Zheng Peiling Yang Shumei Ren Ning Ma The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain
description	Reclaimed water is an alternative water source which could alleviate the shortage of water resources in agricultural systems. Many researchers have studied the effect of reclaimed water on soil environment, crop yield, etc. However, carbon sequestration in reclaimed water irrigated agricultural systems is less studied. This study investigates methane uptake and photosynthesis in reclaimed water irrigation systems contributing to carbon sequestration estimation and analyzes the important factors impacting them. The results show that CH<sub>4</sub> uptake is related to soil water-filled pore space (WFPS) with a quadratic and it has the highest uptake when WFPS is between 40 and 50%. Long-term reclaimed water irrigation could significantly decrease (<i>p</i> < 0.05) CH<sub>4</sub> uptake and macroaggregate stability in the topsoil. However, reclaimed water had no significant impact on photosynthesis in comparison. The type of fertilizer is an important factor which impacts CH<sub>4</sub> emission from soil; urea had a lower CH<sub>4</sub> uptake and a higher CO<sub>2</sub> emission than slow-released fertilizer. Overall, reclaimed water irrigation could effectively decrease soil carbon sequestration. A soil wetted proportion level of 40–50% was recommended in this study for favorable methane oxidation. Slow-released fertilizer in reclaimed water irrigated agriculture could better control soil carbon emission and soil carbon absorption.
format	article
author	Yanbing Chi Qiang Zheng Peiling Yang Shumei Ren Ning Ma
author_facet	Yanbing Chi Qiang Zheng Peiling Yang Shumei Ren Ning Ma
author_sort	Yanbing Chi
title	The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain
title_short	The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain
title_full	The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain
title_fullStr	The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain
title_full_unstemmed	The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain
title_sort	effect of multi-years reclaimed water irrigation on dryland carbon sequestration in the north china plain
publisher	MDPI AG
publishDate	2021
url	https://doaj.org/article/35d34c1d0f60460a96b9843d5e02f513
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The Effect of Multi-Years Reclaimed Water Irrigation on Dryland Carbon Sequestration in the North China Plain

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