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[1]LI Xiao,YUAN Jinguo,MENG Dan.Spatiotemporal Distribution of Vegetation Net Primary Productivity and Its Relationship with Climate Factors in Hebei Province from 2005 to 2014[J].Research of Soil and Water Conservation,2018,25(06):109-114,120.

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Spatiotemporal Distribution of Vegetation Net Primary Productivity and Its Relationship with Climate Factors in Hebei Province from 2005 to 2014

Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume: 25 Number of periods: 2018 06 Page number: 109-114,120 Column: Public date: 2018-10-26

Title:: Spatiotemporal Distribution of Vegetation Net Primary Productivity and Its Relationship with Climate Factors in Hebei Province from 2005 to 2014

Author(s):: LI Xiao¹, YUAN Jinguo^2,3, MENG Dan¹; 1. College of Geospatial Information Science and Technology, Capital Normal University, Beijing 100048, China;
2. College of Resources and Environmental Sciences, Hebei Normal University, Shijiazhuang 050024, China;
3. Hebei Key Laboratory of Environment Change and Ecological Construction, Shijiazhuang 050024, China

Keywords:: net primary productivity; MOD17A3H; Hebei Province; spatiotemporal change; meteorological factor

CLC:: TP79;Q948

DOI:: -

Abstract:: Based on MOD17A3H and MCD12Q1 products of MODIS and meteorological data, spatiotemporal changes of net primary productivity (NPP) in Hebei Province during 2005—2014 were quantitatively analyzed by the method of linear regression. The correlations between NPP and climate factors were analyzed by using the method of correlation coefficient. The results showed that the annual NPP value in Hebei Province mostly ranged from 200 g/(m²·a) to 400 g/(m²·a), among which the high NPP values distributed in the north of Yanshan Mountain and the east of Taihangshan Mountain. The annual average NPP and maximum NPP value in Hebei Province from 2005 to 2014 presented the same fluctuation change and slightly upward trend. The annual average NPP peaked at 337.63 g/(m²·a) in 2012. The areas with the growth rate more than 10% occupied 43.03% of the area of Hebei Province, and mainly distributed in the northwest and southeast of the Hebei Province. The annual average NPP of the five vegetation cover types decreased in the order: broadleaf forest > shrublands > grasslands > needleleaf forest > croplands during 2005—2014. Correlation between NPP and air temperature was mainly negative，while the correlation between NPP and precipitation was mainly positive.

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