Root vigor was affected not only by the degree of soil drought but also by the duration of soil moisture.
苗木根系活力除了受土壤干旱协迫程度的影响之外，还受到干旱持续时间的影响。
The impact of drought climate has the characteristics of long duration, wide range and severe disaster degree.
干旱气候的影响具有持续时间长、范围广、灾害程度重的特点，而干旱指标是衡量干旱气候的标准。
The results indicated that: the dry material accumulation quantity and filling duration under full irrigation were higher than that of drought condition;
结果表明：灌水处理条件下，不同品种干物质积累均较自然降水条件下干物质积累重有所提高，且不同程度的延长了灌浆持续时间；
The results indicated that: the dry material accumulation quantity and filling duration under full irrigation were higher than that of drought condition;
结果表明：灌水处理条件下，不同品种干物质积累均较自然降水条件下干物质积累重有所提高，且不同程度的延长了灌浆持续时间；
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