中国农业气象 ›› 2022, Vol. 43 ›› Issue (01): 28-36.doi: 10.3969/j.issn.1000-6362.2022.01.003

• 农业生物气象栏目 • 上一篇    下一篇

不同类型土壤大豆产量对增温2℃的响应差异

潘仕球,苗 欢,乔云发,苗淑杰   

  1. 南京信息工程大学应用气象学院,南京 210044
  • 收稿日期:2021-05-06 出版日期:2022-01-20 发布日期:2022-01-15
  • 通讯作者: 苗淑杰,教授,博士生导师,从事土壤−作物与气候变化的适应机制研究,E-mail:sjmiao2015@nuist.edu.cn E-mail:sjmiao2015@nuist.edu.cn
  • 作者简介:潘仕球,E-mail: psqnuist@126.com
  • 基金资助:
    国家自然科学基金项目(42177279);江苏省农业自主创新项目[CX(21)3170]

Changes of Soybean Yield in Various Soil Types Responding to 2℃ Warming

PAN Shi-qiu, MIAO Huan, QIAO Yun-fa, MIAO Shu-jie   

  1. Nanjing University of Information Science & Technology, Nanjing 210044, China
  • Received:2021-05-06 Online:2022-01-20 Published:2022-01-15

摘要: 中国农业种植区是全球对气候变化较敏感的地区之一,不同类型土壤的温度敏感性对农田生产力与全球气候变化的反馈关系产生重要影响。为了揭示不同类型土壤大豆产量对未来大气温度增加的响应规律,本研究以常温为对照,采用红外辐射加热装置模拟大气增温2℃,研究增温对黑土、棕壤、盐碱土、风沙土、灰钙土、黄土、黄棕壤、紫色土、砂礓黑土、潮土、红壤和砖红壤上大豆产量的影响。结果表明:增温2℃促使红壤上大豆的一粒荚数、二粒荚数、三粒荚数和总荚数显著增加,分别比对照处理增加152.3%、144.7%、206.9%和147.5%,但增温2℃使砂礓黑土上大豆瘪荚数增加42.8%。除了砖红壤上大豆的二粒荚数增加76.4%和紫色土上大豆总荚数增加50.5%,其它类型土壤上大豆荚数虽有变化,但均未达到5%的差异显著水平。此外,增温2℃显著提高了红壤、砂礓黑土、紫色土和盐碱土上大豆的单株粒数,相应地,产量分别增加241.4%、59.2%、47.6%和75.2%。由此可见,中国主要农田土壤类型中红壤、砂礓黑土、紫色土和盐碱土4种土壤上大豆产量及其产量构成因素对增温2℃响应敏感,且表现出正效应,其它8种类型土壤上大豆产量对增温2℃响应不敏感。表明大豆产量形成对大气增温的响应间接受到土壤类型的调控。

关键词: 增温, 大豆, 产量, 土壤类型

Abstract: Agricultural cultivation region in China is sensitive to global climate change. The sensitivity of various soil types to warming plays a key role in the relationship between agricultural production and air warming. To reveal the response of soybean yield to air warming, the present study was to study the effect of 2℃ warming on soybean yield in Black soil, Brown soil, Saline-alkali soil, Aeolian soil, Sierozem, Loess, Yellow-brown soil, Purple soil, Shajiang black soil, Fluvo-aquic soil, Red soil, Latosol soil under mimic 2℃ warming with Infrared radiation heating device compared to normal temperature as control. The results showed that 2℃ warming increased the numbers of one-seed, two-seed, three-seed and total pods by 152.3%, 144.7%, 206.9% and 147.5% compared to control, respectively. However, 2℃ warming increased the number of shrunken pods in Shajiang black soil by 42.8% compared to control. Apart of the increase in the numbers of two-seed in Latosol soil and total pods in Purple soil by 76.4% and 50.5%, 2℃ warming did not significantly impact pod number in other soil types. Moreover, 2℃ warming significantly increased the seed number per plant in Red soil, Shajiang black soil, Purple soil and Saline-alkali soil, and their yields increased by 241.4%, 59.2%, 47.6% and 75.2% accordingly. Taken together, soybean yield and its components in Red soil, Shajiang black soil, Purple soil and Saline-alkali soil were sensitive and positive to 2℃ warming, while other 8 soil types were insensitive to 2℃ warming. All these indicated that soybean yield formation in response to air warming was indirectly regulated by soil types. This result might provide theory evidence for adapting future climate change in different soil type regions.

Key words: Climate change, Soybean, Yield component, Soil type