Content of soil nutrient 土壤养分含量
The effect of Melilotus officinalia on improving degraded soil is studied according to the change in nutrient content of soil after planting.
通过对人工种植黄花草木樨样地的监测，根据土壤养分含量的变化研究了改良退化土壤的效果。
Myricaria laxiflora, on the other hand, prefers the alluvial soil with sand and gravel in subtropics climate. The soil is of weak alkalinity, has low content of nutrient but moderate salt.
疏花水柏枝适宜于亚热带气候下弱碱性、养分含量低的冲积性砂砾质初育土，能耐一定程度的盐分。
The research content included the slope-directive variation of soil bio-accumulations properties and related nutrient status, base cation leaching, the quantity of microorganism etc.
研究内容主要包括土壤生物积累及相关养分状况、盐基淋溶作用和微生物数量等方面的坡向性分异，并探讨其对山地土壤资源开发利用和生态环境建设的意义。
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