[1]CHE Feng,HUANG Guoqing,LIU Tao,et al.Spatiotemporal Distribution of Net Primary Productivity and Its Correlation with Meteorological Factors in Hubei Province from 2004 to 2015[J].Research of Soil and Water Conservation,2019,26(06):198-204,225.
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Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
26
Number of periods:
2019 06
Page number:
198-204,225
Column:
Public date:
2019-10-17
- Title:
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Spatiotemporal Distribution of Net Primary Productivity and Its Correlation with Meteorological Factors in Hubei Province from 2004 to 2015
- Author(s):
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CHE Feng1, HUANG Guoqing1, LIU Tao2, TIAN Yanhong1, XU Qinghua1, ZOU Xiuqiong1, NIE Li1
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1. Hubei Institute of Photogrammetry and Remote Sensing, Wuhan 430074, China;
2. Hubei Institute of Surveying and Mapping, Wuhan 430074, China
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- Keywords:
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Hubei Province; net primary productivity; spatiotemporal variation; land use type
- CLC:
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Q948
- DOI:
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- Abstract:
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In order to clarify the changes and driving mechanism of the vegetation NPP (net primary productivity) in Hubei Province, based on MOD17A3H NPP time series data, MCD12Q1, meteorological data and SRTM DEM, the spatial and temporal distribution characteristics of vegetation NPP in Hubei Province from 2004 to 2015 were studied by using linear trend analysis and correlation coefficient method. Furthermore, the distribution of vegetation NPP and its response to meteorological change were explored under different land use types and topographic conditions. The results showed that:(1) during the past 12 years, the vegetation NPP in Hubei Province showed overall upward trend, and it was generally higher in the eastern and western mountainous areas than that of the middle part of the study area; the mean annual NPP of the study area from 2004 to 2015 ranged from 400 g C/(m2·a) to 600 g C/(m2·a); (2) the areas where vegetation NPP was positively correlated with annual average temperature and annual precipitation accounted for 79.28% and 59.07% of the total area of the province, respectively; (3) air temperature was the main driving factor affecting the change of NPP in forestland and grassland; the NPP changes of farmland were mainly affected by precipitation; (4) due to elevation, slope and aspects, there were the significant differences of the correlations between the vegetation NPP and annual average temperature and annual precipitation. The changes of vegetation NPP were the results of the combined effects of air temperature, precipitation and terrain conditions.