Agroclimatic Characteristics of Agricultural Land in the Siberian Federal District in Changing Climate

IF 1.4 4区地球科学 Q4 METEOROLOGY & ATMOSPHERIC SCIENCES

Russian Meteorology and Hydrology Pub Date : 2024-01-10 DOI:10.3103/s1068373923100072

I. V. Kuzhevskaya, V. P. Gorbatenko, O. V. Nosyreva, M. A. Volkova, O. E. Nechepurenko, V. V. Chursin, N. N. Chered’ko

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Abstract

The analysis of the agroclimatic resources of the Siberian Federal District in the warming climate has revealed statistically significant (most pronounced in the last two decades) increasing trends in the sum of active temperatures and the growing-season length due to the earlier (by 5–7 days) dates of the stable 5°C crossing in spring and the later ones (by 2–4 days) in autumn. In most of the territory, the changes in total precipitation are statistically insignificant, except for a few stations. The frequency of late and early frosts has not changed and remained within the climatological normal. The maximum growth of green biomass, which was estimated by the NDVI (Normalized Difference Vegetation Index) values, is facilitated by an early beginning of the growing season and a rapid transition to the period of active vegetation. The influence of meteorological conditions on the growth is significant at the beginning of the growing season and is quickly leveled by mid-summer.

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气候变化下西伯利亚联邦区农田的农业气候特征

摘要在气候变暖的情况下，对西伯利亚联邦区农业气候资源的分析表明，由于春季稳定的 5°C 跨越日期提前（5-7 天）和秋季推迟（2-4 天），活动温度总和和生长季节长度呈显著增长趋势（最近二十年最为明显）。在大部分地区，除少数站点外，总降水量的变化在统计上并不显著。晚霜和早霜的频率没有变化，仍保持在气候正常值范围内。根据归一化植被指数（NDVI）值估算，绿色生物量的最大增长得益于生长季节的提前开始和植被活跃期的快速过渡。气象条件对植被生长的影响在生长季初期非常明显，到仲夏时迅速趋于平稳。

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来源期刊

Russian Meteorology and Hydrology METEOROLOGY & ATMOSPHERIC SCIENCES-

CiteScore

1.70

自引率

28.60%

发文量

审稿时长

4-8 weeks

期刊介绍： Russian Meteorology and Hydrology is a peer reviewed journal that covers topical issues of hydrometeorological science and practice: methods of forecasting weather and hydrological phenomena, climate monitoring issues, environmental pollution, space hydrometeorology, agrometeorology.