Title: Calculation method for biocapacity of tourist attractions considering projection pursuit model

Authors: Min Gao

Addresses: School of Food Engineering, Xinxiang Institute of Engineering, Xinxiang, 453007, Henan, China

Abstract: To analyse the biocapacity of tourist attractions, this paper applies the projection pursuit model to assess the biocapacity carrying capacity of tourist attractions. Firstly, determine the indicators for calculating the tourism carrying capacity of scenic spots; secondly, calculate the weights of these indicators based on the maximum information entropy; then, construct a projection index function, determine the optimal projection direction, and build the projection pursuit model. Finally, based on the model, obtain the comprehensive carrying capacity of the ecological environment of the tourist attraction, and complete the carrying capacity calculation. The results indicate that although the measurement results of the two models show some fluctuations in certain years, the overall trend is improving. The consistency of the measurement results of the two methods indirectly indicates the reliability of their evaluation results.

Keywords: biocapacity; projection pursuit model; PPM; maximum information entropy; calculation of bearing capacity.

DOI: 10.1504/IJESD.2026.152028

International Journal of Environment and Sustainable Development, 2026 Vol.25 No.1/2, pp.20 - 37

Received: 07 Aug 2024
Accepted: 14 Jan 2025
Published online: 04 Mar 2026 *

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