Welcome to Chinese Agricultural Science Bulletin,

Chinese Agricultural Science Bulletin ›› 2024, Vol. 40 ›› Issue (20): 115-121.doi: 10.11924/j.issn.1000-6850.casb2023-0671

Previous Articles     Next Articles

Ecological Suitability Evaluation of Ice Wine Grapes in Xi 'an Section of Northern Foothills of Qinling Mountains Based on AHP-EWM-TOPSIS

WANG Tian(), YANG Lian’an(), ZHANG Kairan, CHEN Hanling, XU Weixun, SHANG Xiaoqing   

  1. College of Urban and Environmental Sciences, Northwest University, Xi’an 710127
  • Received:2023-09-20 Revised:2024-03-20 Online:2024-07-11 Published:2024-07-11

Abstract:

Ice wine grapes present significant economic benefits when compared to traditional grape varieties, but the planting conditions of ice wine grape were harsh. Thus, evaluating the ecological suitability of cultivating ice wine grapes can promote the planting of ice wine grape and optimize the grape industry structure. According to the growth demand of ice wine grape and natural climate characteristics of the northern foothills of the Qinling Mountains, evaluation factors such as the coldest monthly average temperature, effective accumulated temperature of ≥10℃, dryness of growing season, the slope and soil pH were selected to establish the suitability evaluation system of ice wine grape. Based on daily meteorological observation data and ecological data of Xi'an section of the northern foot of the Qinling Mountains from 2000 to 2021, the entropy evaluation method (EWM) improved by hierarchical analysis method (AHP) and TOPSIS were used to establish a comprehensive zoning evaluation model for ice wine grape cultivation in this study. The spatial distribution of the three major indicators of climate, topography and soil affecting ice wine grape cultivation was analyzed. Through statistical analysis, the planting areas were classified into four levels, including most suitable, suitable, moderately suitable, and unsuitable, so as to homogenize the interior of each grade as much as possible. The zoning results were basically consistent with the actual situation. This method takes into account the combined effects of climatic indicators and geographical factors, and can better reflect the distribution of ecologically advantageous areas for ice wine grape cultivation in Xi'an section of the northern foot of the Qinling Mountains. It has important reference significance for the regional layout and scientific planning of ice wine grape cultivation.

Key words: ecological suitability, ice wine grape, regionalization analysis, GIS, AHP-EWM-TOPSIS, climate indicators, geographical factors, Xi'an section of the northern foot of the Qinling Mountains