As a result, soil alkalinity rose and farmland lay barren.
结果，土壤中的碱份增多，农田成了不毛之地。
The first principal component can denote the degree of soil salinity, and the second and third principal component can denote the degree of soil alkalinity.
第一主成分综合反映了区内土壤盐渍化程度，第二和第三主成分联合反映了土壤的碱性特征。
Combinating the siol column and potted plant experiment synthesize analysis that the soil alkalinity below 30% can be all improved by hydraulic and agricultural measure without the chemical amendment.
结合土柱试和盆栽试验的结果综合分析，在土壤碱化度低于30%的轻、中度碱化土壤通过水利与农业措施相结合的办法而不用化学改良剂就可以改良好；
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