Leaf Functional Traits of Two Species Affected by Nitrogen Addition Rate and Period Not Nitrogen Compound Type in a Meadow Grassland

• DOI: 10.3389/fpls.2022.841464
• Publication Date: 2022-02-28T07:19:45Z
• Authors: Lu Sun; Guojiao Yang; Yang Zhang; Siqi Qin; Jibin Dong; Yangzhe Cui; Xiao Liu; Peiming Zheng; Renqing Wang
• Keywords: Specific leaf area; Leymus

Plasticity of plant functional traits plays an important role in growth and survival under changing climate. However, knowledge about how leaf respond to the multi-level N addition rates, multiple compound duration application remains lacking. This study investigated effects 2-year 7-year on Leymus chinensis Thermopsis lanceolata a meadow grassland. The results showed that type compounds had no significant effect regardless application. significantly increased total content (LN) specific area (SLA), decreased P (LP) dry matter (LDMC) two species. Compared with short-term addition, long-term LN, LP, SLA, height, but LDMC. In species were differentially responsive LN LP T. consistently higher than those L. chinensis. would make tend "quick investment-return" strategy. Our provide more robust comprehensive predictions deposition traits.