Using a process-oriented methodology to precisely evaluate temperature suitability for potato growth in China using GIS
文献类型: 外文期刊
第一作者: He Ying-bin
作者: He Ying-bin;Zhou Yang-fan;Duan Ding-ding;He Ying-bin;Cai Wei-min;Wang Zhuo-zhuo;Luo Shan-jun;Chen Jing-zhu
作者机构:
关键词: potato;temperature suitability;temperature thermal response coefficient model;ranking method;validation
期刊名称:JOURNAL OF INTEGRATIVE AGRICULTURE ( 影响因子:2.848; 五年影响因子:2.979 )
ISSN: 2095-3119
年卷期: 2017 年 16 卷 7 期
页码:
收录情况: SCI
摘要: A process-oriented methodology to conduct precise evaluation temporally and spatially on temperature suitability for potato growth was applied in China. Arable lands in China were gridded with 1 kmx1 km geographic units, and potential potato phenology in each unit was automatically identified in terms of the potato planting initial temperature and effective accumulated temperature. A temperature thermal response coefficient model was used to compute a temperature suitability value for each day of potato phenology in each geographic unit. In addition, five temperature suitability ranking methods were applied to define suitable areas: (1) upper fourth quantile, (2) median, (3) expected value+1/4 standard deviation, (4) expected value+1/2 standard deviation, (5) expected value+1 standard deviation. A validation indicator was innovated to test the effectiveness of the five ranking methods. The results showed that from a strict degree point of view, the five methods sequence was as follows: 1=3>4>2>5, with a and c determined as the two best ranking methods. For methods 1 and 3, the suitable potato growing area was 1 of 57.76x10(4) km(2). In addition, the suitable areas were spatially coincident with the main potato producing counties. The study output technically supports the proposal from China's government that there is a large potential area to grow winter-ploughed potato in South China because the potential suitable area for growing potato is approximately 2x10(7) ha. In southeast Heilongjiang and east Jilin, where it is hilly and mountainous, there are still some potentially suitable areas for potato growing accounting for nearly 2.32x10(6) ha. The authors suggest to optimize the agricultural regionalization and layout in China and to adjust the cropping pattern structure.
分类号:
- 相关文献
作者其他论文 更多>>
-
Analysis on the Ability of Distinguishing Potato Varieties with Different Hyperspectral Parameters
作者:Duan Ding-ding;He Ying-bin;He Ying-bin;Luo Shan-jun;Wang Zhuo-zhuo
关键词:Spectral characteristics; Spectral parameters; Potato varieties; Filtering treatment; First order differential
-
Analysis of Hyperspectral Variation of Different Potato Cultivars Based on Continuum Removed Spectra
作者:Luo Shan-jun;He Ying-bin;Wang Zhuo-zhuo;Zhang Yuan-tao;Zhu Ya-qiu;He Ying-bin;Duan Ding-ding;Yu Jin-kuan;Zhang Jing-ke
关键词:Potato cultivar; Continuum removal; Key growth period; Hyperspectral; Difference index
-
Climate change and glacier area variations in China during the past half century
作者:Tian Hong-zhen;He Ying-bin;Tian Hong-zhen;Yang Tai-bao;Lv Hui;Li Cheng-xiu;Li Cheng-xiu;He Ying-bin
关键词:Glacier area;Climate change;Air temperature;Precipitation;China
-
Linking a farmer crop selection model (FCS) with an agronomic model (EPIC) to simulate cropping pattern in Northeast China
作者:He Ying-bin;He Ying-bin;Cai Wei-min
关键词:cropping pattern;staple crops;EPIC model;FCS model;simulation