Spatial Analysis on the Fluctuation of Regional NPP in the Typical Steppe, in China

Su Ying Li; Xiu Mei Wang; Ying Chang; Xiao Xia Wu; Qiang Fan

doi:10.4028/www.scientific.net/AMR.518-523.5126

Paper Titles

Relationship between Environment Protection and Improvement of Roads and Configuration of Landscape Plants
p.5108

Research Advance in Soil Organic Carbon Change
p.5112

Response of Ecological Services Value to Land Use Change in the Shiyang River Basin: A Case Study in Wuwei Region
p.5116

Soil Carbon and Nitrogen Storages Changes in a China's Modern Agricultural Ecosystem
p.5121

Spatial Analysis on the Fluctuation of Regional NPP in the Typical Steppe, in China
p.5126

Spatial and Temporal Patterns of Net Primary Productivity in the Source Regions of Yangtze and Yellow Rivers
p.5130

Studies on Benthos in the Intertidal Zone of Sanddy Mud Flats at Sanmen Bay, the East China Sea
p.5138

Study of Ecological Restoration Technique for Dam’s Downstream River
p.5143

Study on Diffusion of Invasion Species Along the Qinghai-Tibet Railway
p.5149

HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 518-523Spatial Analysis on the Fluctuation of Regional...

Spatial Analysis on the Fluctuation of Regional NPP in the Typical Steppe, in China

Abstract:

Assessing the inter-annual variation of regional grassland productivity is imperative to meet the local requirements of grassland adaptive management at regional- or landscape- scale. For the semiarid grassland of Inner Mongolia, the improved CASA model, a kind of light-energy-efficiency model, was used to simulate the Net Primary Productivity (NPP) of the regional grassland. And this study further calculated the Standard Deviation (SD) and Coefficient of Variation (CV) of the regional NPP. Both of SD and CV were used to reflect the fluctuations of regional NPP in the study area among years. Approximately 1/3 of the regional NPP over the years were dramatically changed, frequently up to large amplitude by an average rate of 1 times or more.