[1]SU Peng-fei,ZHANG Ke-bin,WANG Xiao,et al.Study on Fluctuation Ratio of Grassland Vegetation in the Haba Lake Natural Reserve of Ningxia Hui Autonomous Region[J].Research of Soil and Water Conservation,2012,19(01):42-45.
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Study on Fluctuation Ratio of Grassland Vegetation in the Haba Lake Natural Reserve of Ningxia Hui Autonomous Region
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
19
Number of periods:
2012 01
Page number:
42-45
Column:
Public date:
2012-02-20
- Title:
- Study on Fluctuation Ratio of Grassland Vegetation in the Haba Lake Natural Reserve of Ningxia Hui Autonomous Region
- Keywords:
- sandy grassland; fluctuation; fluctuation ratio; weight; semi-arid area
- CLC:
- Q948.15+5
- DOI:
- -
- Abstract:
- Vegetation fluctuation is an important part of vegetation dynamics. Based on the meanings of ecology and statistics, and combined with the characteristics of grassland vegetation, fluctuation measure formula was built by the method of expert weighting. The grassland vegetation quantitative fluctuation and its fluctuation ratio between 2006 and 2010 were studied in Haba Lake Natural Reserve of Ningxia Hui Autonomous Region, the fluctuation was discussed from the number of features on the grassland. Results showed that the biggest positive fluctuation ratio was 0.381 in 2007, meaning the best vegetation growth during recent years. While the most negative fluctuation ratio was -0.350 in 2009, meaning the worst vegetation growth during this period. Vegetation fluctuation of grassland reflects the situation of vegetation growth and provides scientific basis for grassland management, as an effective method to forecast future grassland fluctuations.
- References:
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Last Update:
1900-01-01