2007-01-20 07:00:38 · 5 answers · asked by brooklyntrail 1 in Environment
spreading water from underground sources in particular, or any water infact (ie irrigation). Also spreading chemical fertilizers will increase salt levels. and dusting grass with trace minerals.
2007-01-20 07:05:42 · answer #1 · answered by wally 3 · 0⤊ 0⤋
Combination of poor drainage with Irrigation sufficient to raise water table to within capillary striking diistance of the ground surface. The ground water doesn't have to be salty, even "clean" water has salts.
In the southwest of Australia, they cut trees to convert the land to grazing and irrigated agriculture. The lower water use (no trees) resulted in higher water table in the grazing area. The irrigation also resulted in higher water table. Both situations caused salts to build up in the soil.
2007-01-22 01:32:13 · answer #2 · answered by paleorthid 2 · 0⤊ 0⤋
Irrigation
2007-01-20 15:04:48 · answer #3 · answered by marchhare57 7 · 0⤊ 0⤋
in addition to those already mentioned:
groundwater withdrawal near a saltwater source, like an ocean or estuary.
creating inland drainages
2007-01-20 15:58:24 · answer #4 · answered by tedschram 2 · 0⤊ 0⤋
Using animal waste for fertilizer.
2007-01-20 18:02:45 · answer #5 · answered by matmid2001 2 · 0⤊ 0⤋