基于气候-地形-土壤因子和GIS技术的浙江省香榧种植综合区划

doi:10.11707/j.1001-7488.20120108

Scientia Silvae Sinicae ›› 2012, Vol. 48 ›› Issue (1): 42-47.doi: 10.11707/j.1001-7488.20120108

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Comprehensive Regionalization of Torreya grandis 'Merrillii’Cultivation Based on Climate,Terrain and Soil Factors by GIS Technology in Zhejiang Province

Jin Zhifeng¹, Yang Zhong'en¹, Zhao Hongbo², Yao Yiping¹, Huang Jingfeng³, Yuan Dehui¹, Li Bo³

1. Climate Center in Zhejiang Hangzhou 310017;2. College of Agriculture and Food Science, Zhejiang Agriculture and Forestry University Lin'an 311300;3. College of Resource and Environment, Zhejiang University Hangzhou 310029

Received:2011-01-19 Revised:2011-06-09 Online:2012-01-25 Published:2012-01-25

Abstract

Abstract:

Torreya grandis 'Merrillii’is an indigenous economic tree species in Zhejiang Province, but its potential economic value is not fully obtained because of the irrational regional distribution. The evaluation system of comprehensive regionalization was constructed according to its biological characteristics and the requirement to environmental factors which mainly included three climate factors, two topography factors and two soil factors. These regionalization indices were gridded by the mixed interpolation method. An evaluation model of comprehensive regionalization was established by using the index accumulation method (IAM). Taking account of the land use condition and eliminating the unsuitable planting regions, the results mainly included three grades of the suitable region, sub-suitable region and unsuitable region. The refined regionalization map was drew by using GIS technology, and the regionalization indices were calculated according to the grids of 100 m×100 m. The results of this study would provide a scientific basis for the production of Torreya grandis 'Merrillii’in Zhejiang Province.

Key words: Torreya grandis 'Merrillii&rsquo, regionalization indices, evaluation model, comprehensive regionalization, GIS technology, Zhejiang Province

CLC Number:

S7-931

Jin Zhifeng;Yang Zhong'en;Zhao Hongbo;Yao Yiping;Huang Jingfeng;Yuan Dehui;Li Bo. Comprehensive Regionalization of Torreya grandis 'Merrillii’Cultivation Based on Climate,Terrain and Soil Factors by GIS Technology in Zhejiang Province[J]. Scientia Silvae Sinicae, 2012, 48(1): 42-47.

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Comprehensive Regionalization of Torreya grandis 'Merrillii’Cultivation Based on Climate,Terrain and Soil Factors by GIS Technology in Zhejiang Province

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