共 50 条
- [4] Soil N pools and processes as indicators of desertification in semi-arid woodlands and semi-arid to arid steppes of Argentina PEOPLE AND RANGELANDS BUILDING THE FUTURE, VOLS 1 AND 2, 1999, : 101 - 105
- [7] Trees compete with pastures in the semi-arid tropics of the Northern Territory PEOPLE AND RANGELANDS BUILDING THE FUTURE, VOLS 1 AND 2, 1999, : 291 - 292