JOURNAL OF NANJING FORESTRY UNIVERSITY ›› 2023, Vol. 47 ›› Issue (4): 42-50.doi: 10.12302/j.issn.1000-2006.202109006

Special Issue: 第三届中国林草计算机应用大会论文精选(Ⅱ)

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Distribution suitability analysis of the tree species of shelter forest in coastal area of Shandong based on LandUSEM model

SONG Ge1(), HAN Fang1,*(), XU Jingwei2, YANG Zhijun3, MU Haoxiang1, WANG Zhiyong1, WANG Zhe1   

  1. 1. School of Architectural Engineering, Shandong University of Technology, Zibo 255000, China
    2. Shandong Academy of Forestry Sciences, Ji'nan 250014, China
    3. Shandong Institute of Forestry Territorial and Spatial Planning, Ji'nan 250014, China
  • Received:2021-09-02 Revised:2022-02-14 Online:2023-07-30 Published:2023-07-20

Abstract:

【Objective】Analyzing distribution suitability of forest protection tree species in seven coastal cities of Shandong Province can comprehensively reflect the impacts of different site factors on each forest protection tree species, thereby enabling further scientific forest protection tree species planning. 【Method】The distribution suitability of the tree species in protection forests within seven coastal cities of the Shandong Province was analyzed with the LandUSEM model using survey data of ‘One map’ of forest resource management in Shandong Province, as well as the 1∶106 digital soil map and DEM data as auxiliary data. 【Result】There were 26 species which were significantly affected by geomorphological factors. Furthermore, it was found that the soil types were relatively sensitive to the influence of dominant tree species and that the suitability of dominant tree species varied greatly depending on the different forest types. The average relative weights of the seven factors on the 49 dominant tree species were as follows: landform (0.19) > soil type (0.15) = slope (0.15) = soil thickness (0.15) > forest species (0.14) > slope position (0.13) > slope aspect (0.09). In the protection forests dominated by Pinus thunbergii, P. densiflora and Robinia pseudoacacia, the relative suitabilities of the first two species were higher than that of the latter; 90.48% of R. pseudoacacia forests were not suitable or critically suitable. This suggests that Pinus thunbergii, P. tabulaeformis, Quercus acutissima, Crataegus pinnatifida, Eucommia ulmoides, Q. mongolica, Q. spp., Cerasus pseudocerasus, Cerasus pseudocerasus, Ziziphus jujuba var. spinosa and other tree species should be mixed in low mountains and hilly areas where R. pseudoacacia forests have poor distribution suitability to improve the ecological benefits of R. pseudoacacia forests. 【Conclusion】 The distribution suitabilities of tree species in the protective forests within the seven selected cities along the coast of the Shandong Province are generally good, and the LandUSEM model analysis provides reliable information on tree species distribution suitability.

Key words: shelter forest, tree species distribution, suitability, LandUSEM model

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