金沙江干旱河谷退化草地群落对氮磷施肥的反应
张彦东, 沈有信, 刘文耀
Fertilization effects of N、P on a grass community at the dryvalley of Jinsha River
ZHANG Yan-Dong, SHEN You-Xin, LIU Wen-Yao
植物研究 . 2004, (1): 59 -64 .