浙江省杂交晚籼稻丰优9339产量及生长期降水量空间变异性  

Spatial Variability of Yields of Hybrid Late Indica Rice Fengyou 9339 and Precipitation during Rice Growth in Fields in Zhejiang Province Based on GIS

作　　者：陈海生[1] 杨玉泉[1] 

机构地区：[1]浙江同济科技职业学院,浙江杭州311231

出　　处：《西南农业学报》2016年第10期2263-2268,共6页Southwest China Journal of Agricultural Sciences

基　　金：浙江省科技厅公益性技术应用研究计划项目(2013C32020)

摘　　要：采用地统计学原理和GIS相结合的方法,研究了浙江省杂交晚籼稻丰优9339产量及其各生长期降水量空间变异性。结果表明:浙江省杂交晚籼稻丰优9339产量的C/(C_0+C)为0.762;各生育期降水量的C/(C_0+C)在0.78~0.98,都具有很强的空间相关性。浙江省杂交晚籼稻丰优9339产量变动在6268.00~8664.00 kg/hm^2。产量为7873~8664 kg/hm^2的高值区分布在浙北的杭嘉湖平原一带,占研究区总面积的6.95%。产量在7466~7848 kg/hm^2的次高值区分布在浙江北部、东部一带,以及浙西的衢州地区,占研究区总面积的45.8%;少于7466 kg/hm^2的产量低值区位于浙江南部和浙江中部一带,占研究区总面积的47.25%。浙江省杂交晚籼稻丰优9339播种育苗期大部分地区的降水量为86.00~105.00 mm,占研究区总面积的47.25%;分蘖期大部分地区的降水量在40.00~58.00 mm,占研究区总面积的64.52%;拔节孕穗期大部分地区的降水量为54.00~74.00 mm,占研究区总面积的41.42%;灌浆成熟期大部分地区的降水量为56.00~71.00 mm,占研究区总面积的56.42%。偏相关分析表明在浙江省境内,拔节孕穗期的降水量对杂交晚籼稻丰优9339产量负影响达极显著水平。因此这个时期栽培上要特别重视水稻田间水分的管理,努力延长水稻根系和叶片的功能期。Geostatistics method and geographic information system（GIS） techniques were applied to study the yield of hybrid late indica rice Fengyou 9339 and the spatial variability of precipitation during rice growth in the fields in Zhejiang province. The results showed that the C/（ C0＋ C） of yield of hybrid late indica rice Fengyou 9339 was O, 762, and the C/（ C0 ＋ C） of precipitation during rice growth in the fields was 0.78 -0.98, indicating a strong spatial correlation in the study regions. Yield of Fengyou 9339in Zhejiang province was in the range of 6268 - 8664 kg/hm^2, and its highest yield was in range of 7873 - 8664 kg/hm^2 and occurred mainly in the northern parts of Zhejiang province, accounting for 6.95 % of the whole province ; Yield of 7466 - 7848 kg/hm^2 occurred mainly in the western, eastern and northern parts of Zhejiang province, accounting for 45.80 % of the whole province ; Yield less than 7466 kg/hm^2 was mainly distributed in the southern and middle parts of Zhejiang province, accounting for 47.25 % of the whole areas. Precipitation during rice sowing and seedling stage was in range of 86.00 - 105.00 ram, occupying 47.25 % of the whale regions ; Precipitation during rice tillering stage range of 40.00 - 58.00 mm, occupying 64.52 % of the whole regions ; Precipitation during rice jointing-booting stage was in range of 54.00 - 74.00 mm, occupying 41.42 % of the whole regions; Precipitation during grain filling period was in range of 56. 00 - 71.00 mm, occupying 56.42 % of the whole region. Partial correlation analysis indicated that there was significant negative correlation between yields of rice Fengyou 9339 and precipitation during jointing-booting stage in Zhejiang province, so the great attention should be paid to water management in the paddy fields during jointing-booting stage, prolonging the root and leaf functional period.

关 键 词：地统计 GIS 丰优9339 产量 降水量 

分 类 号：S511.41[农业科学—作物学]