As a result, soilalkalinity rose and farmland lay barren.
结果，土壤中的碱份增多，农田成了不毛之地。
2
The first principal component can denote the degree of soil salinity, and the second and third principal component can denote the degree of soilalkalinity.
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。
3
Combinating the siol column and potted plant experiment synthesize analysis that the soilalkalinity below 30% can be all improved by hydraulic and agricultural measure without the chemical amendment.