Chinese Journal of Agrometeorology ›› 2018, Vol. 39 ›› Issue (01): 34-45.doi: 10.3969/j.issn.1000-6362.2018.01.005

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Climate Adaptability Analysis for Wine Grape at Xiangning County in Southern of Lvliang Mountains

LV Ai-li, HUO Zhi-guo, YANG Jian-ying   

  1. 1. Linfen Meteorological Bureau of Shanxi Provice, Linfen 041000, China; 2.Chinese Academy of Meteorological Sciences, Beijing 100081; 3.Collaborative Innovation Center of Meteorological Disaster Forecast, Early-Warning and Assessment, Nanjing University of Information Science & Technology, Nanjing 210044
  • Received:2017-03-21 Online:2018-01-20 Published:2018-01-19

Abstract: In this study, Xiangning was selected as a typical representation of the southern of Lvliang Mountains. The data used in this study included the meteorological data from Xiangning meteorological station during 1972?2015, and wine grape experimental data from 2009 to 2015 provided by Rongzi Limited Company of Xiangning. Wine grape-related climatic conditions such as sunshine, temperature, rainfall, and water heat coefficient were analyzed using statistical methods to assess the climate adaptability of wine grape planting in this area. The results showed that: (1) the average frost-free day of grape in Xiangning was 202.8d. The accumulated temperature ≥10℃was 3498.0℃·d. The average temperature of the coldest month was ?4.4℃, and the extreme minimum temperature was ?21.6℃. These climatic conditions satisfied the grape growth in southern of Lvliang Mountains. (2) The accumulated temperature before 1990 was small and therefore favored the early-maturing and middle-maturing varieties of wine grapes. The accumulated temperature after 1990 had increased substantially as a result of global warming, hence late-maturing varieties of wine grapes were favored to plant. (3) The agro-climatic resources of sunlight, temperature, and water, and their distributions during grape growing season generally were beneficial to the growth and the quality development of wine grapes. Low temperature disasters existed as the frost probability was 22.7% in mid-April. Summer maximum temperature in this area was lower than 38℃. Continuous rainfalls in July and August in some years influenced the sugar content of wine grapes. (4) Significant positive relationships between grape sweetness level and light and heat conditions were detected during the grape mature period, while negative correlations existed between grape sweetness level and water conditions, especially humidity. The average temperature, precipitation, sunlight, diurnal temperature range, and water heat coefficient during the mature month of wine grape (September) were 21.9℃, 74.4mm, 6.7h, 10.6℃, and 1.5, respectively. Favorable temperature conditions, enough sunlight, large diurnal temperature range, and small rainfall formed a climatic environment for the growth of wine grapes with good qualities. Planting experiments showed that sugar content in wine grapes meet the standards for making high quality wine, which proved that this area was suitable for commercial planting of wine grapes.

Key words: Wine grape, Planting, Climate conditions, Southern of Lvliang Mountains