TY - JOUR

T1 - Phosphorus flow characteristics in the waste system of Poyang Lake Watershed over the past 70 years

AU - Chen, Z.

AU - Liu, W.

AU - Qin, T.

AU - Wu, M.

AU - Li, Z.

AU - Zhang, Y.

AU - Wu, D.

AU - Abakumov, E.

AU - Chebykina, E.

AU - Dai, J.

AU - Xiao, H.

AU - Xie, X.

AU - Kong, M.

N1 - Цитирования:3 Export Date: 19 October 2024 CODEN: STEVA Адрес для корреспонденции: Xie, X.; Key Laboratory of Poyang Lake Environment and Resource Utilization, China; эл. почта: xchxie@ncu.edu.cn Химические вещества/CAS: phosphorus, 7723-14-0 Сведения о финансировании: Nanchang University, NCU, 202210403102, S202210403083 Сведения о финансировании: Nanchang University, NCU Сведения о финансировании: HX202112220004 Сведения о финансировании: 20223BBF61019 Сведения о финансировании: 2022Y02 Сведения о финансировании: JXJG-22-1-17 Сведения о финансировании: National Natural Science Foundation of China, NSFC, 52070094 Сведения о финансировании: National Natural Science Foundation of China, NSFC Сведения о финансировании: S2021CQKJ0696 Текст о финансировании 1: This work was supported by Jiangxi Province \u201CDouble Thousand Plan\u201D Innovation Leading Talent Long Term Project ( S2021CQKJ0696 ), the National Natural Science Foundation of China ( 52070094 ), Key R&D projects in Jiangxi Province ( 20223BBF61019 ), Open Fund project for Key Laboratory of Poyang Lake Environment and Resource Utilization of Ministry of Education ( 2022Y02 ), Higher Education Reform Research Project of Jiangxi Province ( JXJG-22-1-17 ), Project entrusted by Nanjing University & Yancheng Academy of Environment Protection Technology and Engineering ( HX202112220004 ), First class undergraduate course construction project and Student innovation and entrepreneurship training program of Nanchang University ( 202210403102 and S202210403083 ).

PY - 2024/9/1

Y1 - 2024/9/1

N2 - With the intensification of human activities, the amount of phosphorus (P)-containing waste has increased. When such waste is not recycled, P is released into the environment, leading to environmental issues such as the eutrophication of water bodies. In this study, based on the material flow analysis method, a P Waste Flow analysis model (P-WFA) was developed to analyze the P flow in the waste system of Poyang Lake, the largest freshwater lake in China. To address the research gap in long-term P flow analysis at the watershed scale, this study quantified the P content in the waste system of the Poyang Lake Watershed from 1950 to 2020. The analysis revealed that from 1950 to 2020, the total P input into the waste system increased from 5.49 × 104 tons in 1950 to 2.28 × 105 tons in 2020. The breeding industry system was identified as the primary source, accounting for 25.19–41.59 % of the total waste system. Over the past 70 years, P loss to surface water from waste systems has been primarily facilitated by manure from the breeding industry, as well as drainage from crop farming systems (77.74 % in 2020). At the same time, the P recycling rate (PRR) of the waste system exhibited an initial increase followed by a decrease, increasing from 44.14 % to 47.75 % before dropping to 44.41 %. Population growth, urbanization, and changes in consumption levels in Jiangxi Province have led to changes in the dietary structure and fertilizer use, consequently affecting the P cycling pattern. This study presents a comprehensive P flow model for waste systems in the Poyang Lake Watershed. This model can be used as a reference to enhance P cycling and manage P loss in other large freshwater lakes. © 2024 Elsevier B.V.

AB - With the intensification of human activities, the amount of phosphorus (P)-containing waste has increased. When such waste is not recycled, P is released into the environment, leading to environmental issues such as the eutrophication of water bodies. In this study, based on the material flow analysis method, a P Waste Flow analysis model (P-WFA) was developed to analyze the P flow in the waste system of Poyang Lake, the largest freshwater lake in China. To address the research gap in long-term P flow analysis at the watershed scale, this study quantified the P content in the waste system of the Poyang Lake Watershed from 1950 to 2020. The analysis revealed that from 1950 to 2020, the total P input into the waste system increased from 5.49 × 104 tons in 1950 to 2.28 × 105 tons in 2020. The breeding industry system was identified as the primary source, accounting for 25.19–41.59 % of the total waste system. Over the past 70 years, P loss to surface water from waste systems has been primarily facilitated by manure from the breeding industry, as well as drainage from crop farming systems (77.74 % in 2020). At the same time, the P recycling rate (PRR) of the waste system exhibited an initial increase followed by a decrease, increasing from 44.14 % to 47.75 % before dropping to 44.41 %. Population growth, urbanization, and changes in consumption levels in Jiangxi Province have led to changes in the dietary structure and fertilizer use, consequently affecting the P cycling pattern. This study presents a comprehensive P flow model for waste systems in the Poyang Lake Watershed. This model can be used as a reference to enhance P cycling and manage P loss in other large freshwater lakes. © 2024 Elsevier B.V.

KW - Phosphorus flow

KW - Phosphorus management

KW - Poyang Lake Watershed

KW - Substance flow analysis model

KW - Waste system

KW - Eutrophication

KW - Farms

KW - Fertilizers

KW - Lakes

KW - Population statistics

KW - Recycling

KW - Waste management

KW - Water

KW - Watersheds

KW - Flow analysis models

KW - Fresh water lakes

KW - Lake watersheds

KW - Poyang Lake

KW - Poyang lake watershed

KW - Substance flow analyse model

KW - Substance flow analysis

KW - Waste systems

KW - Phosphorus

KW - phosphorus

KW - surface water

KW - fertilizer

KW - flow modeling

KW - lake pollution

KW - material flow analysis

KW - quantitative analysis

KW - watershed

KW - agricultural land

KW - Article

KW - crop farming system

KW - ecosystem

KW - environmental contamination rate

KW - environmental factor

KW - environmental protection

KW - flow measurement

KW - flow rate

KW - organic farming

KW - phosphorus flow characteristics

KW - phosphorus recycling rate

KW - population size

KW - principal component analysis

KW - recycling

KW - recycling rate

KW - socioeconomics

KW - stock rate

KW - uncertainty

KW - urbanization

KW - wastewater

KW - article

KW - breeding

KW - controlled study

KW - cycling

KW - eutrophication

KW - fresh water

KW - human activities

KW - lake

KW - manure

KW - nonhuman

KW - pharmaceutics

KW - population growth

KW - waste

KW - water

KW - China

KW - Jiangxi

UR - https://www.mendeley.com/catalogue/13e39cc5-9eb7-37a9-9fe2-34da55160a3c/

U2 - 10.1016/j.scitotenv.2024.173704

DO - 10.1016/j.scitotenv.2024.173704

M3 - статья

VL - 941

JO - Science of the Total Environment

JF - Science of the Total Environment

SN - 0048-9697

M1 - 173704

ER -