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Ch09 |
 | | The wetland on the south-eastern slopes of the Greater Khingan Range (Da Xingan Ling), in Heilongjiang Province, is characterized by swamp-meadows and meadows, and occurs mainly in the valleys. |
 | | This chapter discusses the origin and evolution of the wetland, in the Greater Khingan Range, the measures to be taken for its reclamation, as well as the changes in moisture, heat, and soilfertility conditions after reclamation in the Butha, Arun, and Jalaid areas on the south-eastern slopes of the range (fig. |
 | | Condensation during the freezing period, the impermeable layer of the frozen soil below the surface during the early thawing period, as well as the shallow groundwater in the river valleys, are all factors responsible for the waterlogging of the wetland. |
| www.unu.edu /unupress/unupbooks/80349e/80349E09.htm (3679 words) |
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