四川盆地区油菜农业气候适宜性分析与精细化区划
利用四川省盆地区103个气象站1971-2010年油菜各生育阶段气象资料和地理信息数据,采用GIS技术对油菜进行气候适宜性区划,为气候变化背景下油菜生产规划布局提供科学依据。通过综合分析四川省盆地区各地农业气候特点和影响油菜产量的关键气象因子,选取蕾薹期降水量和生育期≥0℃活动积温作为四川盆地油菜农业气候适宜性区划指标,建立区划指标的小网格推算模式,应用GIS技术推算出盆地无测站区域2.5 km×2.5 km网格点上区划指标的气候要素值,采用集优法得到四川盆地油菜气候适宜性精细化区划图,并进行分区评述。结果表明：最适宜区主要分布在盆西和盆中的浅丘、平原地区,以及盆南、盆东北的部分丘陵地区,海拔...
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| Published in | 西南农业学报 Vol. 28; no. 2; pp. 846 - 852 |
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| Main Author | |
| Format | Journal Article |
| Language | Chinese |
| Published |
中国气象局成都高原气象研究所,四川成都610072
2015
四川省农业气象中心,四川成都610072%四川省农业气象中心,四川成都,610072%四川省农业科学院作物研究所,四川成都,610066 |
| Subjects | |
| Online Access | Get full text |
| ISSN | 1001-4829 |
| DOI | 10.16213/j.cnki.scjas.2015.02.074 |
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| Summary: | 利用四川省盆地区103个气象站1971-2010年油菜各生育阶段气象资料和地理信息数据,采用GIS技术对油菜进行气候适宜性区划,为气候变化背景下油菜生产规划布局提供科学依据。通过综合分析四川省盆地区各地农业气候特点和影响油菜产量的关键气象因子,选取蕾薹期降水量和生育期≥0℃活动积温作为四川盆地油菜农业气候适宜性区划指标,建立区划指标的小网格推算模式,应用GIS技术推算出盆地无测站区域2.5 km×2.5 km网格点上区划指标的气候要素值,采用集优法得到四川盆地油菜气候适宜性精细化区划图,并进行分区评述。结果表明：最适宜区主要分布在盆西和盆中的浅丘、平原地区,以及盆南、盆东北的部分丘陵地区,海拔一般在530 m以下;适宜区主要涉及低山、深丘地区,包括盆东丘陵区的北部、盆南丘陵区的局部、以及盆周山地的低海拔地区;次适宜区主要位于盆周山地海拔560 m以上的区域。 |
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| Bibliography: | 51-1213/S Based on the meteorological data and geographic information during the growth period of oilseed rape at 103 weather stations from1971 to 2010 in Sichuan basin and by using GIS technology,the agricultural climate division for oilseed rape was built in order to provide scientific basis for sustainable development. Through the comprehensive analysis of agricultural climate characteristics and key influential climate factor on oilseed rape yield,selected precipitation at stem elongation period,and ≥0 ℃ accumulated temperature during the whole growth period as the climatic regionalization indices. Small grid reckon model of regionalization index was established,Calculated the spatial distribution without station in Sichuan basin of each regionalization index values of 2. 5 km × 2. 5 km grid node. The distribution graph of agricultural climate suitable areas of oilseed rape was formed by using set optimal method. The results indicated that the most suitable regions for oilseed rape plant distributed around |
| ISSN: | 1001-4829 |
| DOI: | 10.16213/j.cnki.scjas.2015.02.074 |