Response mechanisms of 3 typical plants nitrogen and phosphorus nutrient cycling to nitrogen deposition in temperate meadow grasslands

Yang Zhang; Yang Zhang; Yang Zhang; Qing Zhang; Qing Zhang; Qing Zhang; Wenjun Yang; Wenjun Yang; Wenjun Yang; Yan Zhang; Yan Zhang; Yan Zhang; Ning Wang; Ning Wang; Ning Wang; Peixian Fan; Chao You; Linqian Yu; Qun Gao; Hui Wang; Hui Wang; Hui Wang; Peiming Zheng; Peiming Zheng; Peiming Zheng; Renqing Wang; Renqing Wang; Renqing Wang

doi:10.3389/fpls.2023.1140080

Frontiers in Plant Science (Jul 2023)

Response mechanisms of 3 typical plants nitrogen and phosphorus nutrient cycling to nitrogen deposition in temperate meadow grasslands

Yang Zhang,
Yang Zhang,
Yang Zhang,
Qing Zhang,
Qing Zhang,
Qing Zhang,
Wenjun Yang,
Wenjun Yang,
Wenjun Yang,
Yan Zhang,
Yan Zhang,
Yan Zhang,
Ning Wang,
Ning Wang,
Ning Wang,
Peixian Fan,
Chao You,
Linqian Yu,
Qun Gao,
Hui Wang,
Hui Wang,
Hui Wang,
Peiming Zheng,
Peiming Zheng,
Peiming Zheng,
Renqing Wang,
Renqing Wang,
Renqing Wang

Affiliations

Yang Zhang: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Yang Zhang: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Yang Zhang: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Qing Zhang: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Qing Zhang: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Qing Zhang: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Wenjun Yang: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Wenjun Yang: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Wenjun Yang: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Yan Zhang: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Yan Zhang: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Yan Zhang: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Ning Wang: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Ning Wang: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Ning Wang: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Peixian Fan: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Chao You: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Linqian Yu: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Qun Gao: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Hui Wang: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Hui Wang: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Hui Wang: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Peiming Zheng: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Peiming Zheng: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Peiming Zheng: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China
Renqing Wang: Institute of Ecology and Biodiversity, School of Life Sciences, Shandong University, Qingdao, China
Renqing Wang: Shandong Provincial Engineering and Technology Research Center for Vegetation Ecology, Shandong University, Qingdao, China
Renqing Wang: Qingdao Forest Ecology Research Station of National Forestry and Grassland Administration, Shandong University, Qingdao, China

DOI: https://doi.org/10.3389/fpls.2023.1140080
Journal volume & issue: Vol. 14

Abstract

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The increase of nitrogen (N) deposition and the diversity of its components lead to significant changes in the structure and function of temperate meadow steppe, which could affect plant nutrient uptake, nutrient resorption and litter decomposition, thus affecting the biogeochemical cycle process. The distribution and metabolism of nitrogen and phosphorus in plants determine the growth process and productivity of plants. Plant nutrient uptake, nutrient resorption and litter decomposition play an important role in the nutrient cycling process of ecosystem. This study closely combined these three processes to carry out experiments with different nitrogen dosages and types, and systematically explored the response of nitrogen and phosphorus nutrient cycling to nitrogen deposition. The results showed that nitrogen deposition can greatly affect ecosystem nutrient cycle of nitrogen and phosphorus. Firstly, Nitrogen deposition has significant effect on plant nutrient uptake. Nitrogen uptake of stems and leaves increased with the increase of nitrogen addition dosage, while phosphorus uptake of stems and leaves showed a downward trend or no significant effect. Besides, nitrogen addition type had a significant effect on nitrogen and phosphorus content of stems. Secondly, Nitrogen addition dosage had a significant effect on plant nutrient resorption, while nitrogen addition type had no significant effect on it. Thirdly, nitrogen deposition has significant effect on litter decomposition. With the increase of nitrogen addition dosage, the initial nitrogen content of litters increased and the decomposition rate of litters accelerated. Nitrogen application type had significant effect on stem litter decomposition. These results indicated that nitrogen deposition significantly affects plant nutrient cycling, and thus affects the structure and function of grassland ecosystem.

Published in Frontiers in Plant Science

ISSN: 1664-462X (Online)
Publisher: Frontiers Media S.A.
Country of publisher: Switzerland
LCC subjects: Agriculture: Plant culture
Website: https://www.frontiersin.org/journals/plant-science

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