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Division Of Introduction And Cultivation Of Raspberries

Posted on:2017-01-19Degree:MasterType:Thesis
Country:ChinaCandidate:X LuFull Text:PDF
GTID:2323330488990382Subject:Forest management
Abstract/Summary:PDF Full Text Request
Raspberry is known as the "golden fruit",it has a high nutritional value and economic value. With the introduction and cultivation of raspberry advance, raspberry distributed in suitable areas is already one of the important tasks in raspberry industry developments. Based on the theory of climatic analogues and ecological factors comprehensive theoretical analysis, the Summer bearing raspberry, Fall bearing raspberry, Summer bearing blackberry and Fall bearing blackberry in suitable regions of climate, suitable soil regions were analyzed. Combined with regional test and experience of our current cultivated, we comprehensive analysis of the raspberry zoning of suitable areas for our country, in order to provide guidance for the healthy development of raspberry.On the basis of climate data from 156 stations in China, 8 factors, namely annual average temperature, the lowest temperature, average temperatures of the coldest month, annual precipitation, 5~8month precipitation, annual sunshine hours, 5~8month sunshine hours, annual relative humidity, mainly effect on cultivation of raspberry are compared with these in original by the analysis statistic method of similitude priority ratio. Combining with experience and practices, 4 kinds of suitable climate regions of those are demarcated respectively. Selected two soil factors which including soil pH and clay content. According to two soil factors, the 156 stations correspond to the zone of 60 soil are clustered. 60 soil zones are divided four grades. The superposition of these two results, and combining with experience and practices, then we get the four types of raspberries in the most suitable area, suitable area, less suitable and unsuitable area cultivated zoning map.Summers bearing raspberry divisions were as follows: The most favorable regions including the North China Mountains, the North China Plain, parts of the Northwest Loess Plateau and Lhasa area; Unsuitable areas including Qinghai-Tibet Plateau, southern tropical and subtropical regions. The others are suitable areas. Fall bearing raspberry divisions were as follows: The most suitable areas including south of Northwest China, south of Southwest China, North China Plain; Unsuitable areas distributed at mountains in Northeast China, Northwest arid windy area, southern subtropical and subtropical regions.Summer bearing blackberry and Fall bearing blackberry are demarcated respectively. The results showed that is similar: The most favorable regions of blackberry including North China Plain and the Yangtze River Basin area. Unsuitable regions are in Northwest and Southwest areas of arid area. Other areas suitable for cultivation of blackberry, located in the southeast of China's 400 mm rainfall in addition to the most suitable areas.
Keywords/Search Tags:raspberry, Introduction, regionalization, Fuzzy similarity, Suitable area
PDF Full Text Request
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