Forest ecosystem health assessment and analysis in China

编号 zgly0000329404

文献类型 期刊论文

文献题名 Forest ecosystem health assessment and analysis in China

学科分类 220.1060;森林生态学

作者 XIAOFengjin  OUYANGHua  ZHANGQiang  FUBojie  ZHANGZhicheng 

作者单位 National-ClimateCenter 

母体文献 Journal of Geographical Sciences;地理学报: 英文版 

年卷期 2004,14(1)

页码 18-24

年份 2004 

分类号 S718.557 

关键词 森林  生态系统  健康评价指标  中国 

文摘内容 Based on more than 300 forest sample plots surveying data and forestry statistical data, remote sensing information from the NOAA AVHRR database and the daily meteorological data of 300 stations, we selected vigor, organization and resilience as the indicators to assess large-scale forest ecosystem health in China and analyzed the spatial pattern of forest ecosystem health and influencing factors. The results of assessment indicated that the spatial pattern of forest ecosystem health showed a decreasing trend along latitude gradients and longitude gradients. The healthy forests are mainly distributed in natural forests, tropical rainforests and seasonal rainforests; secondarily orderly in northeast national forest zone, subtropical forest zonation and southwest forest zonation; while the unhealthy forests were mainly located in warm temperate zone and Xinjiang-Mongolia forest zone. The coefficient of correction between Forest Ecosystem Health Index (FEHI) and annual average precipitation was 0.58 (p<0.01), while the coefficient of correlation between FEHI and annual mean temperatures was 0.49 (p<0.01), which identified that the precipitation and temperatures affect the pattern of FEHI, and the precipitation's effect was stronger than the temperature's. We also measured the correlation coefficient between FEHI and NPP, biodiversity and resistance, which were 0.64, 0.76 and 0.81 (p<0.01) respectively. The order of effect on forest ecosystem health was vigor, organization and resistance。