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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。
Using the combination of geostatistics and GIS, the spatial variability of yield and its precipitation in each growing season of late hybrid indica rice Fengye 9339 in Zhejiang Province was studied. The results showed that the C / (C0 + C) yield of late hybrid indica hybrid rice Fengyou 9339 in Zhejiang Province was 0.762, and the C / (C 0 + C) in all growth stages ranged from 0.78 to 0.98, all of which had strong spatial correlation. The yield of late hybrid indica rice Fengye 9339 in Zhejiang Province varied from 6268.00 to 8664.00 kg / hm ~ 2. The high value areas of 7873 ~ 8664 kg / hm ~ 2 were distributed in the Hangjiahu Plain in northern Zhejiang, accounting for 6.95% of the total area of the study area. The second highest value areas of 7466 ~ 7848 kg / hm ~ 2 were located in the northern part of Zhejiang and the eastern part of the area, and the Quzhou area in western Zhejiang, accounting for 45.8% of the total area of the study area. The yield of less than 7466 kg / hm ~ 2 was low The value area is located in southern Zhejiang and central Zhejiang, accounting for 47.25% of the total area of the study area. The precipitation of late indica hybrid rice Fengyou 9339 in Zhejiang Province was 86.00-105.00 mm in most areas, accounting for 47.25% of the total area of the study area. The precipitation in most of the tillering stages was 40.00-58.00 mm, Area of 64.52%; precipitation in most areas of jointing booting stage 54.00 ~ 74.00 mm, accounting for 41.42% of the total area of the study area; grain filling in most parts of the maturity 56.00 ~ 71.00 mm, accounting for the total area of the study area 56.42%. Partial correlation analysis showed that in Zhejiang Province, the precipitation at jointing booting stage had a significant negative effect on the yield of late indica hybrid rice Fengye 9339. Therefore, cultivation of this period should pay special attention to the management of rice field water, and strive to extend the function of rice roots and leaves.