The response of needle stoichiometry to 10-year N addition and 4-year cessation of N addition in a subtropical Masson pine plantation of China

Yang, Dongxing1; Zhang, Jiawei1; Yu, Qian2,3; Xie, Danni4; Kang, Ronghua5; Zhang, Ting6; Si, Gaoyue7; Mulder, Jan8; Huang, Yongmei9; Duan, Lei1,10

2023-11-01

10.1007/s11104-023-06399-4

PLANT AND SOIL   影响因子和分区

0032-079X

1573-5036

AimsNitrogen (N) deposition alters plant stoichiometry and the state of nutrient limitation in forest ecosystems. In subtropical forests of China, responses of plants stoichiometry to chronically elevated and recently declined N deposition remain unclear.MethodsA 14-year investigation of needle elements, including N, phosphorus (P), potassium (K), calcium (Ca), magnesium (Mg) and aluminum (Al), was carried out under field N manipulation (10-year N addition and subsequent cessation of N addition) in a typical, subtropical Masson pine (Pinus massoniana Lamb.) forest in southwest China.ResultsNeedle N and P concentrations were significantly elevated by N addition even after N addition ceased while needle N:P remained constant among treatments. Needle N:K and P:K were significantly elevated by N addition, but were no longer different from reference plots after N addition ceased. Masson pine's annual relative growth rate (RGR) was significantly decreased by N addition but the differences among treatments became insignificant among treatments after N addition ceased. Additionally, the annual RGR was negatively correlated with needle Al concentration. Needle Al exhibited a trend of first rising and then decreasing over the 14-year experiment.ConclusionsUnder the background of high ambient N deposition and Ca deposition, chronic N addition does not aggravate P limitation but can result in K limitation in a N-saturated subtropical forest. With the recovery of subtropical forest from soil acidification and N saturation, the elevated needle N and P induced by N addition will persist for at least four years and most likely for much longer in the future, but the risk of K limitation is expected to diminish.

Elevated and declined N deposition N saturation Plant stoichiometry P limitation K limitation Subtropical forest

SCI

英语

其他

National Natural Science Foundation of China[42277204] ; null[2023YFC3708500] ; null[2022YFC3700602]

Agriculture ; Plant Sciences

Agronomy ; Plant Sciences ; Soil Science

WOS:001107461500002

SPRINGER

AGRICULTURAL SCIENCES

Web of Science

1.Tsinghua Univ, Sch Environm, State Key Lab Environm Simulat & Pollut Control, Beijing 100084, Peoples R China
2.Nanjing Univ, State Key Lab Pollut Control & Resource Reuse, 163 Xian Ave, Nanjing 210023, Jiangsu, Peoples R China
3.Nanjing Univ, Sch Environm, 163 Xian Ave, Nanjing 210023, Jiangsu, Peoples R China
4.Changan Univ, Sch Land Engn, Shaanxi Key Lab Land Consolidat, Xian 710064, Shanxi, Peoples R China
5.Chinese Acad Sci, CAS Key Lab Forest Ecol & Management, Inst Appl Ecol, Shenyang 110016, Peoples R China
6.Southern Univ Sci & Technol, Sch Environm Sci & Engn, Guangdong Key Lab Soil & Groundwater Pollut Contr, Shenzhen 518055, Guangdong, Peoples R China
7.Shanghai Jiao Tong Univ, Sch Agr & Biol, Shanghai 200240, Peoples R China
8.Norwegian Univ Life Sci, Fac Environm Sci & Nat Resource Management, Box 5003, NO-1432 As, Norway
9.Beijing Normal Univ, Fac Geog Sci, Beijing 100875, Peoples R China
10.Tsinghua Univ, State Environm Protect Key Lab Sources & Control A, Beijing 100084, Peoples R China

Yang, Dongxing,Zhang, Jiawei,Yu, Qian,et al. The response of needle stoichiometry to 10-year N addition and 4-year cessation of N addition in a subtropical Masson pine plantation of China[J]. PLANT AND SOIL,2023.

Yang, Dongxing.,Zhang, Jiawei.,Yu, Qian.,Xie, Danni.,Kang, Ronghua.,...&Duan, Lei.(2023).The response of needle stoichiometry to 10-year N addition and 4-year cessation of N addition in a subtropical Masson pine plantation of China.PLANT AND SOIL.

Yang, Dongxing,et al."The response of needle stoichiometry to 10-year N addition and 4-year cessation of N addition in a subtropical Masson pine plantation of China".PLANT AND SOIL (2023).