Excerpt from Forestation of the Sand Hills of Nebraska and Kansas While the dune sand of the hilltops, as shown by analysis of the soil at Halsey, is practically pure silica 1 and contains less than 1 per cent of organic matter, the soil of the valleys and pockets is usually very rich in humus. The continuous collection Of this material is made possible by the lack of surface drainage. As a result of it the vegetation Of the bottoms is very heavy, while that Of the hilltops is correspondingly light. The heavy vegetation of ...
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Excerpt from Forestation of the Sand Hills of Nebraska and Kansas While the dune sand of the hilltops, as shown by analysis of the soil at Halsey, is practically pure silica 1 and contains less than 1 per cent of organic matter, the soil of the valleys and pockets is usually very rich in humus. The continuous collection Of this material is made possible by the lack of surface drainage. As a result of it the vegetation Of the bottoms is very heavy, while that Of the hilltops is correspondingly light. The heavy vegetation of the bottoms uses up a lot Of the moisture, and this, in the absence of rains, makes these by all Odds the most difficult sites for the introduction of new plant life. About the Publisher Forgotten Books publishes hundreds of thousands of rare and classic books. Find more at ... This book is a reproduction of an important historical work. Forgotten Books uses state-of-the-art technology to digitally reconstruct the work, preserving the original format whilst repairing imperfections present in the aged copy. In rare cases, an imperfection in the original, such as a blemish or missing page, may be replicated in our edition. We do, however, repair the vast majority of imperfections successfully; any imperfections that remain are intentionally left to preserve the state of such historical works.
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PLEASE NOTE, WE DO NOT SHIP TO DENMARK. New Book. Shipped from UK in 4 to 14 days. Established seller since 2000. Please note we cannot offer an expedited shipping service from the UK.
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