The bud bank of perennial grasses is a controlling factor in population dynamics and estrongly affected by soil water nitrogen status. To explore how the size its components affect shoot density under different moisture contents spring autumn. A three-full-factorial field experiment with factors treatment timing (spring autumn), rate (control 10 g N m−2 yr−1) irrigation +40 mm rainfall) was con...

Vegetation patchiness is common in degraded grasslands. enhances the spatial variability of grassland soil organic carbon and total nitrogen. Stripped vegetation patches have a great impact on ecosystem (C) nitrogen (N) storage. Using field surveys, we examined effects storage four typical alpine grass species (viz: Leymus secalinus, Koeleria pers, Stipa aliena, Leontopodium nanum ). The result...