. Currents in biochemical research. Biochemistry -- Research; Biochemistry; Research. H. GAFFRON limited supply of coal, it is quite clear that we are spending mainly as fuel irreplaceable organic Fig. 1.—Virgin forests in 1850. Can these losses of stored products of photosynthesis be offset by the assimilation of carbon going on today? Within the cultivated areas of industrialized countries this is not the case, and foresters agree that virgin forests are more or less stationary. New growth balances natural decay. Only well-planned agriculture and expert forestry may perhaps furnis
. Currents in biochemical research. Biochemistry -- Research; Biochemistry; Research. H. GAFFRON limited supply of coal, it is quite clear that we are spending mainly as fuel irreplaceable organic Fig. 1.—Virgin forests in 1850. Can these losses of stored products of photosynthesis be offset by the assimilation of carbon going on today? Within the cultivated areas of industrialized countries this is not the case, and foresters agree that virgin forests are more or less stationary. New growth balances natural decay. Only well-planned agriculture and expert forestry may perhaps furnish all that we need in the future provided the increasing demand for fuel and energy is eventually met by the general development of atomic power. At present, the products of agriculture are consumed within a few years after harvesting. There is no increase of our reserve of organic carbon due to this source. On the contrary, the improvident exploitation of the soil in many places leads to di- minishing returns. In the United States, fifty million acres now under cultivation are so badly eroded as to invite abandonment. These sad circumstances have received widespread attention, and effective measures are being taken to check further losses and to regain the lost fertility of the soil (13). Not so well known are the conditions regard- ing the forests in this country (1). The following figures speak for themselves: 28. Please note that these images are extracted from scanned page images that may have been digitally enhanced for readability - coloration and appearance of these illustrations may not perfectly resemble the original Green, David Ezra, 1910-. New York, Interscience Publishers, Inc.
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