首页> 美国政府科技报告 >Comparison of the response of mature branches and seedlings of Pinus ponderosa to atmospheric pollution. Annual progress report, (October 1989-September 1990).
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Comparison of the response of mature branches and seedlings of Pinus ponderosa to atmospheric pollution. Annual progress report, (October 1989-September 1990).

机译:pinus ponderosa成熟枝条和幼苗对大气污染的响应比较。年度进展报告(1989年10月至1990年9月)。

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Since completion of exposure-facility-construction activities in October 1989, most of our effort has focused on conducting the pollutant exposures and collecting plant-tissue response data. The winter and early spring months were spent calibrating the oz ...

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