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Relationship between stand characteristics and soil properties of two typical forest plantations in the mountainous area of Western Sichuan, China

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Abstract

There is uncertainty and limited knowledge regarding stand characteristics and soil properties of middle-aged pure forest plantations in the mountainous area of Western Sichuan. Plantation forests are almost exclusively planted as monocultures in the Pengzhou forest farm in the western mountainous area of Sichuan Province. This study aimed to assess the spatial and ecological characteristics of middle-aged Cunninghamia lanceolata (Lamb.) Hook. and Cryptomeria fortunei Hooibr. in the Pengzhou forest farm. The relationships and differences between stand growth characteristics and forest soil composition were assessed on the two forests planted simultaneously within the same area and exposed to the same environmental conditions. Cr. fortunei grew sparse, and slower than Cun. lanceolata. Principal component analysis indicated that the soil properties in the Cr. fortunei plantation were better than those in the Cun. lanceolata plantation. Redundancy analysis revealed that the differences in stand structure were affected significantly by the total nitrogen content and pH value. Thus, we propose that Cr. fortunei is planted for priority consideration in the subtropical high mountain area. Further, tending operations and application of fertilizers need to be conducted in Cun. lanceolata forests. Based on theoretical and experimental data, the present study explains why local farmers are more willing to plant Cr. fortunei, and thus provides a useful theoretical reference for the development of sustainable plantations in the future.

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Acknowledgments

The research reported in this manuscript is funded by the National Key Research and Development Program of China (Grant No. 2016YFD060020302) and the Doctoral Graduate Student’s Academic Visit Fund of Sichuan University.

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Correspondence to Hai-long Sun.

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Yang, H., Miao, N., Li, Sc. et al. Relationship between stand characteristics and soil properties of two typical forest plantations in the mountainous area of Western Sichuan, China. J. Mt. Sci. 16, 1816–1832 (2019). https://doi.org/10.1007/s11629-018-5265-y

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  • DOI: https://doi.org/10.1007/s11629-018-5265-y

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