The effect of nine-year nitrogen addition on foliar fungal diseases of plant groups in an alpine meadow

Introduction

Foliar fungal diseases have become one of the non-negligible drivers of accelerated grassland degradation, and global change processes such as increased nitrogen (N) deposition can significantly regulate the occurrence and development of foliar fungal diseases in meadows. However, little is known about how increased nitrogen deposition affects foliar fungal diseases in alpine meadows, and there is limited understanding of the relative importance of different plant groups in the process of N enrichment affecting plant diseases.