[Effects of alpine meadow degradation on soil carbon, nitrogen, and carbon stable istope in Zoige Plateau.].

To investigate the differences of soil carbon, nitrogen, and carbon stable isotopes in Zoige wetland, we analyzed the abundance of carbon stable isotopes and the contents of carbon and nitrogen in soils of three kinds of retrogressive successional grasslands (swampy meadow, steppe meadow, and degraded meadow). The results showed that the δC values in the meadow soil of Zoige alpine wetland ranged from -26.21‰ to -24.