Abbreviation (ISO4): Chin Agric Sci Bull
Editor in chief: Yulong YIN
Chinese Agricultural Science Bulletin >
Regionalization of the Climate Suitability on Pomegranate Planting in Xianyang Based on GIS
Received date: 2019-02-21
Request revised date: 2019-06-12
Online published: 2020-03-19
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(2017M-20)
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To study the climate suitability of pomegranate planting, make full use of climate resources, and find suitable areas for pomegranate cultivation in Xianyang, based on the latest meteorological observed data of 12 stations in Xianyang from 1988 to 2017, GIS technology was used to carry out climatic suitability regionalization of Xianyang pomegranate cultivation, aiming to provide a basis for pomegranate production and agricultural structure adjustment. There were 8 indices of climatic division for pomegranate, namely, ≥10℃ active accumulate temperature from bud emergence to fruit maturity, ≥10℃ active accumulate temperature during the annual growth period, sunshine hours of the year, sunshine hours on September, precipitation from July to September, the average temperature difference between day and night at 18-21℃, extreme minimum temperature of the year, extreme minimum temperature of ten days. The results showed that: the quality area of pomegranate cultivation accounted for 14.9%, mainly distributed in Sanyuan, most of Jingyang, northwest of Weicheng District, eastern Liquan, and northern Qianxian; the suitable area accounted for 21.3%, distributed in Xingping City, Qindu District, Weicheng District, the southern part of Liquan County, the southern part of Qianxian County and the Taiyuan District of Wugong north; the inferior area accounted for 16.6%, and the unsuitable area accounted for 47.2%. Except Wugong, the south of Xianyang dry belt is a suitable area for pomegranate planting, the light, heat and water climate resources in this area meet all the meteorological factors needed for high-quality production of pomegranate, and the cultivation of pomegranate can be developed in this region vigorously.
Key words: GIS; suitability; climate regionalization; pomegranate; Xianyang
Liu Yan , Liu Jin , Quan Wenting , Wang Jinting , Wang Zixuan , Liang Qichen . Regionalization of the Climate Suitability on Pomegranate Planting in Xianyang Based on GIS[J]. Chinese Agricultural Science Bulletin, 2020 , 36(10) : 109 -113 . DOI: 10.11924/j.issn.1000-6850.casb19020036
表1 咸阳市石榴种植气候区划指标 |
气候要素 | 最适宜条件 | 适宜条件 | 次适宜条件 | 不适宜条件 |
---|---|---|---|---|
K/℃·d | K≥3000 | 2000≤K<3000 | K<2000 | |
Ka/℃·d | Ka≥4000 | 3000≤Ka<4000 | Ka<3000 | |
TΔt/℃ | TΔt≥11 | 10.0≤TΔt<11.0 | TΔt<10.0 | |
S/h | 2000≤S≤3500 | 1000≤S<2000 | S<1000或S>3500 | |
S9/h | S9≥130 | 110≤S9<130 | S9<110 | |
R7-9/mm | R7-9<280 | 280≤R7-9<300 | R7-9≥300 | |
Tnmin/℃ | Tnmin≥-11.0 | -13.0≤Tn min<-11.0 | -15.0≤Tn min<-13.0 | Tnmin<-15.0 |
Tx min/℃ | Tx min≥-5.0 | -5.0<Txmin≤-7.0 | -9.0≤Txmin<-7.0 | Txmin<-9.0 |
注:K代表从现蕾至果实成熟需≥10℃的有效积温,Ka代表年生长期内需≥10℃的有效积温,TΔt代表日平均气温18~21℃时的日较差,S代表年日照时数,S9代 |
表2 石榴种植区划因子空间分析模式 |
地理模式 | R | F |
---|---|---|
K=4671.949-1.786h | 0.987 | 389.003** |
Ka=5270.915-1.702h | 0.984 | 299.010** |
S=-11005.774+376.009φ | 0.751 | 12.920** |
S9=-2684.687+25.832λ+0.030h | 0.802 | 8.117* |
R7-9=239.373+0.059h | 0.840 | 23.945** |
TΔt=-47.083+1.669φ | 0.728 | 11.276** |
Tn=-6.374-0.010h | 0.904 | 44.914** |
Tx=207.259-6.155φ | 0.934 | 67.982** |
注:λ、φ、h分别代表经度、纬度、高度。*代表P<0.05,**代表P<0.01。 |
The authors have declared that no competing interests exist.
作者已声明无竞争性利益关系。
感谢中国科学院计算机网络信息中心地理空间数据云(http://www.gscloud.cn)提供咸阳地区DEM(Digital Elevation Model,数字高程模型数据)。
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