carth
- 网络迦太基
carth-
In the area distributed with mountain yellow carth and mountain yellow-brown earth , there is limestone soil , and mountain marshy soils and paddy soils in smaller depressions .
在山地黄壤和山地黄棕壤的分布地带内，尚有石灰土及低洼地的山地沼泽土和水稻土。
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The simulated acid rain has activation to the aluminium in the soils . There is no active aluminium in the four typyes of soils except the brown earth which the active aluminium appears in pH2 . It has obvious improvement effect to apply lime to the acid brown carth .
模拟酸雨对土壤中铝的活化作用是除棕壤pH2出现活性铝外，其余土壤均未出现.对酸化棕壤施用CaO进行改良，效果明显。