different degraded degree Steppe的用法和样例：
- Han B,Wang J,Zhao M L,Xu Z X,Suo P F.Genetic differentiation of Stipa krylovii in different degraded soil[J].Acta Agrestia Sinica,2003,(6):146-153.
- This paper analyse plant composition,aboveground biomass,the proportionof good grasses and nutrient element in soil at different degraded grassland in Dari county,Guoluo, Qinghai.
- The results show that the degradation degree and quality of degraded chitosan were affected by reaction temperature, time and quantily of hydrogen peroxide.
- Different degradation degrees
- There was a decline of AMF species with the degradation degree of grasslands: there was 10 species AMF which belonged to 4 genus in normal grassland, while there were only 7 species of 2 genus of AMF in seriously degraded grassland.