Geography Reference
In-Depth Information
Fig. 4.1
Main land use types of Northeast China in 2010
Khingan Mountains Sub-humid Climate Zone, Songliao Plain Sub-humid Climate
Zone, West Liaohe Plain, and Eastern Inner Mongolia Arid Climate Zone.
Northeast China is the fertile grain production area with great potential capa-
bility of development and significant contribution to the national food security.
Most part of the Northeast Plain and the valleys and tablelands between Changbai
Mountains has been reclaimed for cultivated land so far. These regions have been
the major farming area for agricultural production in Northeast China, but at the
cost of the disappearance of primary forests and grasslands. The scale of the grain
production is very large, the major crops including the corn, soybean and rice,
because high level of agricultural mechanization in Northeast China have been
developed as the earliest reclamation area of agricultural mechanization with its
best cultivatable soil conditions since the last century of China. In addition, total 6
billion km
2
of the forest area accounts for 28.1 % of the total national forest stock
in Northeast China.
This chapter analyzes the impacts on the climate change of cultivated land
reclamation by analyzing the change of temperature and precipitation numerical
predicted on the basis of cultivated land change in 30 years in Northeast China,
which was simulated by DLS model in previous study (Deng et al.
2010b
). The
changing trend of the climate in the future is predicted in the context of the change
of the spatial pattern of cultivated land, and the impacts of the climate change on
