[1] China Agr Univ, Coll Agr & Biotechnol, Dept Crop Ecol & Farming, Beijing, Peoples R China
[2] China Agr Univ, Coll Anim Sci & Technol, Dept Grassland Sci, Beijing, Peoples R China
[3] China Agr Univ, Beijing Key Lab Grassland Sci, Beijing, Peoples R China
[4] Natl Energy R&D Ctr Biomass, Beijing, Peoples R China
[5] Beijing Sure Acad Biosci, Beijing, Peoples R China