共 2 条
[1]
A break in the nitrogen cycle in aridlands? Evidence from δ p15 N of soils[J] R. D. Evans;J. R. Ehleringer Oecologia 1993,
[2]
The impact of a microphytic custs on runoff and water regime over longitudinal dune slope at Niz-zana; western Negev Yair A; Abeliovitch A; 1999,