[1]AN Bin,XIAO Weiwei,ZHANG Shulan,et al.Spatial and Temporal Features of Climate and Its Potential Productivity in Jiangxi Province During the Period 1960-2017[J].Research of Soil and Water Conservation,2020,27(04):122-127.
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Spatial and Temporal Features of Climate and Its Potential Productivity in Jiangxi Province During the Period 1960-2017
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
27
Number of periods:
2020 04
Page number:
122-127
Column:
目次
Public date:
2020-06-20
- Title:
- Spatial and Temporal Features of Climate and Its Potential Productivity in Jiangxi Province During the Period 1960-2017
- Keywords:
- climate change; climatic potential productivity; spatial and temporal change; Jiangxi Province
- CLC:
- S162
- DOI:
- -
- Abstract:
- In order to have a deep recognition of the variation features of climate and its potential productivity in Jiangxi Province under the influence of global warming, based on the precipitation and temperature data obtained from 16 stations in Jiangxi Province from 1960 to 2017, the climate potential productivity was calculated by Thornthwaite Memorial model. The temporal and spatial variation characteristics of precipitation, temperature and climate potential productivity were analyzed by linear fitting, Mann-Kendall mutation & Moving t-Test Technique and ArcGIS spatial analysis. At the same time, the relationship among the potential of climate productivity, precipitation and temperature were discussed. The results show that the climate in Jiangxi Province has been warming and humidifying in the past 58 years, with the rate of 32.25 mm/decade, 0.195℃/decade and 169.81 kg/(hm2·10 a)for precipitation temperature and potential productivity, respectively; temperature and potential productivity were significant abrupt changes in 1988 and 1993, but there was no abrupt change in precipitation; Spatially, the precipitation increased eastward and westward with Xiushui-Xunwu boundary, while the temperature and potential productivity decreased from south to north and from east to west. The climate potential productivity was directly influenced by the combination of precipitation and temperature in this area. The cold-dry climate was not conducive to climate potential productivity, while the warm-humid climate trend in the future was conducive to the improvement of climate potential productivity. Since the 1980s, the increase of grain yield per unit area has been significantly higher than the climate potential productivity in the same period, and the utilization rate of climate resources has been gradually improved.
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Last Update:
2020-07-09