granite residual red soil 花岗岩残积红土
Quaternary red clay total nitrogen content was highest, but the available nitrogen content was lower than Granite soil and Purple sandy shale soil.
第四纪红土土壤全氮含量较高，但是其碱解氮含量比花岗岩母质土壤和紫色砂页岩土壤低。
In the lower soil suction range , The water-supply capacity of red soil derived from Q2 was higher than that derived from granite while In the higher soil suction range the different was not widely.
对于相同母质发育的红壤，在低吸力阶段，轻度侵蚀、中度侵蚀、重度侵蚀土壤的持水量相差不大；
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