High nitrogen enrichment buffers plant photosynthesis against herbivory damage

This dataset includes measurements of various plant physiological traits
in alpine meadow plants from the Tibetan Plateau under nitrogen gradients
and herbivory treatments, aiming to provide data support for studying
plant photosynthesis and physiological responses under different nitrogen
levels and insect herbivory pressures. The data records key plant traits
from the aboveground parts of two plant species in the alpine meadow,
including photosynthesis rate (Pn, µmol·m⁻²·s⁻¹), stomatal conductance
(Gs, mol·m⁻²·s⁻¹), chlorophyll relative content (Chl, SPAD), leaf nitrogen
content (N, mg·g⁻¹), tannin content (CT, mg·g⁻¹), total phenol content
(TP, mg·g⁻¹), total alkaloid content (TA, mg·g⁻¹), leaf mass per unit area
(LMA, g·m⁻²), and insect feeding intensity (%). Additionally, the dataset
includes environmental variables such as nitrogen addition gradients and
herbivory treatment types. All data are presented in tabular format, with
metadata including plant species, nitrogen addition concentrations, and
herbivory treatments. This dataset is suitable for research in plant
physiology, ecology, and climate change, particularly supporting
meta-analyses and studies on adaptive strategies that investigate how
plants respond to multiple environmental stresses such as nitrogen
gradients and insect herbivory. There are no legal or ethical
restrictions; users are encouraged to cite relevant research articles when
using the data.