The salt ion content in plastic greenhouse soil was significantly higher than that in open vegetable fields and woodland ones, with salt content up to the salinification soil standard.
大棚温室土壤中的盐离子含量明显高于露天菜地和林地土壤，其含盐量已达盐渍化土标准。
It is known that some changes will happen in soil properties and environment in vegetable green houses as is compared with those of original open-fields.
原本种植一般作物的大田，在以大棚方式栽培蔬菜后，其土壤性质会发生一系列的变化。
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