Report of the Michigan Academy of Science, volume 15
Report of the Michigan Academy of Science, volume 15
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In our eReader you can find the full English version of the book. Read Report of the Michigan Academy of Science, volume 15 Online - link to read the book on full screen. Our eReader also allows you to upload and read Pdf, Txt, ePub and fb2 books. In the Mini eReder on the page below you can quickly view all pages of the book - Read Book Report of the Michigan Academy of Science, volume 15
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From the preceding it is seen that pines are at present quite scarce on these hills, persisting on but a few of them, and then only on the sides toward the river. They have been left here on the more inac- cessible places by the lumbermen, and have persisted because the de- ciduous trees can not use the sterile and rather unstable soil where they are perched. The deciduous trees do not seem as well able to stand the caving of the soil as do the younger pines, nor do they es- tablish themselves ...as well on the denuded areas. The pines are not reproducing themselves to any extent; no cones were present on the trees, and only one fallen cone was found. These pines may fruit only at long intervals, most of them are too young to fruit. With a fair seed-production the pines might persist here for a long time, but seed-production has been nearly entirely stopped, probably because of the death of the older trees where the soil has caved from about their roots.
University of Michigan, April, 1913.
What to read after Report of the Michigan Academy of Science, volume 15?
You can find similar books in the "Read Also" column, or choose other free books by Michigan Academy of Science. Council to read onlineMoreLess
To quickly assess the difficulty of the text, read a short excerpt:
From the preceding it is seen that pines are at present quite scarce on these hills, persisting on but a few of them, and then only on the sides toward the river. They have been left here on the more inac- cessible places by the lumbermen, and have persisted because the de- ciduous trees can not use the sterile and rather unstable soil where they are perched. The deciduous trees do not seem as well able to stand the caving of the soil as do the younger pines, nor do they es- tablish themselves ...as well on the denuded areas. The pines are not reproducing themselves to any extent; no cones were present on the trees, and only one fallen cone was found. These pines may fruit only at long intervals, most of them are too young to fruit. With a fair seed-production the pines might persist here for a long time, but seed-production has been nearly entirely stopped, probably because of the death of the older trees where the soil has caved from about their roots.
University of Michigan, April, 1913.
What to read after Report of the Michigan Academy of Science, volume 15?
You can find similar books in the "Read Also" column, or choose other free books by Michigan Academy of Science. Council to read onlineMoreLess
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