皖北平原近60 a冬小麦需水量及缺水量特征研究
DOI:
作者:
作者单位:

作者简介:

通讯作者:

基金项目:

安徽省教育厅高校自然科学重点项目(KJ2019A0670);宿州学院博士科研启动基金项目(2017jb04)。


Characteristics of Water Need and Shortage for Winter Wheat on Northern Anhui Plain in the Past 60 Years
Author:
Affiliation:

Fund Project:

  • 摘要
  • |
  • 图/表
  • |
  • 访问统计
  • |
  • 参考文献
  • |
  • 相似文献
  • |
  • 引证文献
  • |
  • 资源附件
    摘要:

    冬小麦需水量和缺水量变化分析是地区农业合理用水、制定科学灌溉方案的数据基础。选取典型农业区皖北平原为例, 采用修正FAO-56 PM公式及分段单值平均系数法对皖北平原1959—2018年冬小麦需水量和缺水量进行计算,并通过M-K 检验法分析近60 a来皖北地区冬小麦需水量和缺水量的趋势变化及突变现象。结果表明:(1)近60 a皖北地区年需水量呈现 一定的波动起伏,需水量以2 mm/10 a的趋势下降,年需水量平均值为315.5 mm,需水量阈值为227.8~391.4 mm。皖北地区需 水量空间差异不明显,呈自北向南逐渐减少,其中砀山县年均最大需水量为 323.66 mm,阜阳市年均最小需水量为 300.144 mm ,在1975年之后,皖北地区缺水量突变明显。(2)皖北地区冬小麦缺水量以2 mm/10 a的趋势小幅度下降,下降的幅度较 小,且空间差异较小总体呈自北向南逐渐减少,其中砀山县年均最大缺水量为273.4 mm,阜阳市的年均最小缺水量为244.16 mm。(3)皖北地区多年平均缺水量为261.65 mm,年缺水量变化幅度为182.6~333.8 mm,突变点集中在1975—2018年,冬小麦 的缺水量出现在生长中期。

    Abstract:

    Analysis of water need and water shortage for winter wheat is of great significance to rational use of water and to formulation of scientific irrigation scheme in the region. In this paper we select the typical agricultural region of North Anhui plain as an example, and use the revised FAO-56 Penman-Monteith equation and the subsection single value average coefficient method to analyze the water need of Winter Wheat on the North Anhui plain from 1959 to 2018 based on meteorological data from Dangshan, Bozhou, Suzhou, Fuyang and Bengbu stations. The trend and mutation of water need and water shortage for Winter Wheat on Northern Anhui plain in recent 60 years were analyzed by M-K test. The results show that: (1)In recent 60 years, the annual water need in the north of Anhui Province is fluctuated to a certain degree, the water need is decreased in a 2 mm/10 a trend, the average annual water need is 315.5 mm, and the threshold water need is 227.8-391.4 mm; the spatial difference of water need in the north of Anhui Province is not obvious from north to south; the average annual water need at Dangshan County is 323.66 mm, and the average annual water need at Fuyang City is 300.144 mm; after 1975, there have been 14 mutation points, showing that the water shortage in the north of Anhui Province has changed obviously in recent 40 years. (2)The water shortage for Winter Wheat in the north of Anhui Province decreases in a 2 mm/10 a trend, with a small decline and a small spatial difference, and the total water shortage decreases gradually from north to south, with the maximum annual water shortage of 273.4 mm at Dangshan County and the minimum annual water shortage of 244.16 mm at Fuyang City; the annual average water shortage in the north of Anhui Province is 261.65 mm, and the annual water shortage change ranges from 182.6 to 333.8 mm; the mutation points concentrates in years from 1975 to 2018, and the water shortage for winter wheat occurs in the middle stage of its growth.

    参考文献
    相似文献
    引证文献
引用本文

吴雨纯,孙 朋* ,李 娜,孙 萌,杨梦玉,蒋苗苗.皖北平原近60 a冬小麦需水量及缺水量特征研究[J].西昌学院学报(自然科学版),2020,34(2):6-12.

复制
分享
文章指标
  • 点击次数:
  • 下载次数:
历史
  • 收稿日期:
  • 最后修改日期:
  • 录用日期:
  • 在线发布日期: 2020-07-28