Nature, Volume 427Sir Norman Lockyer Macmillan Journals Limited, 2004 - Electronic journals |
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Page 99
... production capacity , it is not an acceptable solution in countries with malnourished people . The effect of the ... production . In the United States , at least , current levels of agricultural production can be met by reducing excess ...
... production capacity , it is not an acceptable solution in countries with malnourished people . The effect of the ... production . In the United States , at least , current levels of agricultural production can be met by reducing excess ...
Page 241
... production of consumers14 . In larger systems , stable isotopes of elements such as carbon , nitrogen and sulphur can help to distinguish organic matter sources15 , but often isotopic differences between endogenous and exogenous ...
... production of consumers14 . In larger systems , stable isotopes of elements such as carbon , nitrogen and sulphur can help to distinguish organic matter sources15 , but often isotopic differences between endogenous and exogenous ...
Page 243
... production ; second , has a & 13C value consistent with that of terrestrial plants ; third , is assimilated by animals ; and last , is passed up the food web to fish . These results provide evidence that inputs of terrestrial carbon ...
... production ; second , has a & 13C value consistent with that of terrestrial plants ; third , is assimilated by animals ; and last , is passed up the food web to fish . These results provide evidence that inputs of terrestrial carbon ...
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