Characterizing Spatial Distribution Patterns of Direct Solar Radiation in Jieba Mountain Using GIS

Cheng Fu; Li Jing; Chang Dan-dong; ZHAO Ting-ning

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Characterizing Spatial Distribution Patterns of Direct Solar Radiation in Jieba Mountain Using GIS

- Characterizing Spatial Distribution Patterns of Direct Solar Radiation in Jieba Mountain Using GIS
- Bulletin of Soiland Water Conservation Vol. 30, Issue 5, Pages: 196-199(2011)
- 作者机构：
  
  1. 北京林业大学水土保持学院
  2. 水利部水土保持监测中心
- 作者简介：
- 基金信息：
- DOI：
  CLC：
- Published：2011
- 稿件说明：
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Cheng Fu, Li Jing, Chang Dan-dong, et al. Characterizing Spatial Distribution Patterns of Direct Solar Radiation in Jieba Mountain Using GIS[J]. Bulletin of Soiland Water Conservation, 2011, 30(5): 196-199.
DOI：

Cheng Fu, Li Jing, Chang Dan-dong, et al. Characterizing Spatial Distribution Patterns of Direct Solar Radiation in Jieba Mountain Using GIS[J]. Bulletin of Soiland Water Conservation, 2011, 30(5): 196-199. DOI：

摘要

基于ViewGIS下的太阳直接辐射模拟计算功能

以河北省丰宁满族自治县小坝子乡为例

对该地区太阳直接辐射空间分布规律进行了研究

以期为当地的区域规划和生态环境建设提供基础资料和科学依据。通过DEM模拟计算太阳直接辐射的方法和原理

结合ViewGIS系统建立的数据库进行统计分析。结果表明

地貌对太阳直接辐射分布的影响比较明显

太阳直接辐射随海拔高度升高而增大;太阳直接辐射随坡度的增加逐渐递减;一年中各月份太阳直接辐射随坡向的变化规律为:阳坡>半阳坡>半阴坡>阴坡。

Abstract

The spatial distribution patterns of direct solar radiation were investigated in Jieba mountain based on the function of solar radiation calculation in ViewGIS.The purpose of this study is to provide preliminary data and scientific evidences for regional planning and environmental construction.The results of spatiotemporal distribution analysis show that the direct radiation increased with the elevation.Greater amount of radiation were found at plantation and less at lower parts of the hills.The calculated radiations were found in descending order at the locations of plantation

flood land

summit

middle and upper part of hill

gully

and lower part of hill.On the other hand

direct radiation decreased with the increase of slope degree.The direct radiation also varied with slope aspects;sunny slope

semi-sunny slope

semi-shady slope

and shady slope had direct radiation in descending order.

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