叶片养分重吸收对土壤养分的变化很敏感.然而,我们尚不清楚氮沉降如何影响植物大量元素重吸收率.杨树(Populus deltoids)是世界上......

　　Pueraria tuberosa DC (Fabaceae) is a perennial woody lianas which is highly valued in Ayurveda and traditional Chine......

AIM:To investigate factors contributing to the colon transit time(CTT),physical activity and characteristics were examin......

了解无机态营养严在渤海沉积物-海水界面交换速率、通量基控制因素,于2002-08-06-08-24,应用船基沉积物培养方法,现场测定了硅酸盐......