Optimized multilateral crop trade patterns can effectively mitigate phosphorus imbalance among the involved countries

Feng，Wei1,2; Lu，Hongwei1; Kang，Jiajie3; Yan，Pengdong3; Yao，Tianci4; Guan，Yanlong5; Jiang，Chunfang3; He，Mengxi3; Xue，Yuxuan1,2; Yu，Qing1,2; Yan，Yiming1,2

2023-04-20

10.1016/j.scitotenv.2023.161841

SCIENCE OF THE TOTAL ENVIRONMENT   Impact Factor & Quartile

0048-9697

1879-1026

Phosphorus imbalance for cropland can greatly influence environmental quality and productivity of agricultural systems. Resolving cropland phosphorus imbalance may be possible with more efficient multilateral crop trade within the involved trading countries; however, the driving mechanisms are unclear. This study calculates phosphorus budgets in China and five central Asian countries and proposes two optimal multilateral crop trade models to mitigate the phosphorus imbalance. Results show that the current trading pattern between China and Central Asia is causing a phosphorus imbalance intensification. Phosphorus surpluses in China and Uzbekistan are 41.7 and 8.9 kg/ha, while Kazakhstan, Kyrgyzstan, Tajikistan, and Turkmenistan exhibit phosphorus deficits with the negative value of −0.7, −1.2, −0.8, and −0.8 kg/ha, respectively. However, under the optimal multilateral crop trade patterns, phosphorus budget of China and Central Asia will become balanced. Phosphorus imbalance intensification for China is reduced to −2525 and −2472 kt under the single- and bilevel-objective-based crop trades. In Kyrgyzstan, it will drop 61.5 % and 50.0 % and change to 321 and 417 kt under the two optimal crop trades. Moreover, changes of phosphorus imbalance mitigations for other central Asian countries range from 11.9 % to 28.2 %. This provides a scientific basis when establishing policies for strengthening optimal multilateral crop trading across the world to promote global phosphorus management.

Central Asia China Multilateral crop trade Phosphorus deficit Phosphorus surplus

SCI

English

Others

Strategic Priority Research Program of the Chinese Academy of Sciences[XDA20040302] ; National Key Research and Development Program of China[2019YFC0507801] ; CAS Interdisciplinary Innovation Team[JCTD-2019-04]

Environmental Sciences & Ecology

Environmental Sciences

WOS:000927059800001

ELSEVIER

ENVIRONMENT/ECOLOGY

2-s2.0-85147089267

Scopus

1.Key Laboratory of Water Cycle and Related Land Surface Processes,Institute of Geographic Sciences and Natural Resources Research,Chinese Academy of Sciences,Beijing,China
2.University of Chinese Academy of Sciences,Beijing,China
3.State Key Laboratory of Hydraulic Engineering Simulation and Safety,Tianjin University,Tianjin,China
4.Guangzhou Institute of Geography,Guangdong Academy of Sciences,Guangzhou,China
5.School of Environmental Science and Engineering,Southern University of Science and Technology,Shenzhen,China

Feng，Wei,Lu，Hongwei,Kang，Jiajie,et al. Optimized multilateral crop trade patterns can effectively mitigate phosphorus imbalance among the involved countries[J]. SCIENCE OF THE TOTAL ENVIRONMENT,2023,870.

Feng，Wei.,Lu，Hongwei.,Kang，Jiajie.,Yan，Pengdong.,Yao，Tianci.,...&Yan，Yiming.(2023).Optimized multilateral crop trade patterns can effectively mitigate phosphorus imbalance among the involved countries.SCIENCE OF THE TOTAL ENVIRONMENT,870.

Feng，Wei,et al."Optimized multilateral crop trade patterns can effectively mitigate phosphorus imbalance among the involved countries".SCIENCE OF THE TOTAL ENVIRONMENT 870(2023).