Publication Date
1989
Description
The Ningxia Hui Autonomous Region is situated in the semi-arid areas of northwest China, with an elevation of 1 100 m-2 200 m. The annual mean temperature is 7-9°C, the annual mean precipitation and evaporation are 118-660 mm and 1 400-2 400 mm respectively and the total hours of sunshine is 2 200-3 100 in a year (Guo Sijia et al., 1985). As Ningxia is located in the transitional section from semi-humid to semi-arid areas, there are multivarious types of native grassland in the region, but the zonal grasslands types are the steppe, desert-steppe and desert. During 1982-1986, observation stations were established in the typical sectors of different types of grassland to study their vegetation structure, productivity, regrowth ability and seasonal trends. The relationships between the productivity of grasslands and the climatic factors were analyzed by the method of regression. The possibility of forecasting the grassland productivity according to the climatic index was also discussed. These studies provided valuable information for the study of the vegetation structure productivity and its dynamics and also provided theoretical basis for the rational management and utilization of the semi-arid grassland in the similar regions.
Citation
Sijia, Guo; Zhongzhi, Xing; Yizhong, Chen; Kechang, Li; Dongsheng, Zhang; and Doucai, Ma, "The Grassland Vegetation Structure, Productivity and its Dynamics of Ningxia" (2025). IGC Proceedings (1989-2023). 6.
https://uknowledge.uky.edu/igc/1989/session12/6
Included in
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The Grassland Vegetation Structure, Productivity and its Dynamics of Ningxia
The Ningxia Hui Autonomous Region is situated in the semi-arid areas of northwest China, with an elevation of 1 100 m-2 200 m. The annual mean temperature is 7-9°C, the annual mean precipitation and evaporation are 118-660 mm and 1 400-2 400 mm respectively and the total hours of sunshine is 2 200-3 100 in a year (Guo Sijia et al., 1985). As Ningxia is located in the transitional section from semi-humid to semi-arid areas, there are multivarious types of native grassland in the region, but the zonal grasslands types are the steppe, desert-steppe and desert. During 1982-1986, observation stations were established in the typical sectors of different types of grassland to study their vegetation structure, productivity, regrowth ability and seasonal trends. The relationships between the productivity of grasslands and the climatic factors were analyzed by the method of regression. The possibility of forecasting the grassland productivity according to the climatic index was also discussed. These studies provided valuable information for the study of the vegetation structure productivity and its dynamics and also provided theoretical basis for the rational management and utilization of the semi-arid grassland in the similar regions.
