Integrated evaluation of soil fertility based on grey correlation analysis at regional scales

Zhang, Yu, Liu, Hua and Bingham, Chris (2015) Integrated evaluation of soil fertility based on grey correlation analysis at regional scales. African Journal of Agricultural Research, 10 (12). pp. 1450-1456. ISSN 1991-637X

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This paper reports on studies of soil samples from the region of Xiaoliang water conservation station, in China, and its naturally restored forest. 32 indices based on the physical, chemical, microbiological and enzyme properties of the soil are studied, from 9 different vegetation patterns at 45 observation points. Grey correlation analysis and integrated evaluation is used for the analysis of soil fertility. From experimental measurements, it is shown that the integrated evaluation of the sample soil fertility by grey correlation analysis provides excellent agreement with the actual soil characteristics. Results show that Eucalyptus may be considered as a primary forest choice to recover bare land, however, it is not suitable for long-term planting and cropping since it will eventually result in degradation of soil fertility, and is therefore not favourable for long-term ecological restoration. Nevertheless, if chosen, additional actions can be taken to benefit soil fertility, such as regular changes of breed variety, crop rotation, mixing with broad-leaf forest, protecting undergrowth vegetation and reducing forest litter coverage.

Keywords:grey correlation, integrated evaluation, regional scale, soil fertility, water conservation station, bmjdoi, JCOpen
Subjects:D Veterinary Sciences, Agriculture and related subjects > D443 Water Resource Management
D Veterinary Sciences, Agriculture and related subjects > D750 Soil as an Agricultural medium
Divisions:College of Science > School of Engineering
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ID Code:17323
Deposited On:06 May 2015 08:42

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