Svetloyarsk灌溉系统“Chervlenoe”和“Duboovrazhniy”地块的土壤盐渍化因子

Q4 Agricultural and Biological Sciences
E. I. Kravchenko
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引用次数: 0

摘要

研究了决定Svetloyarsk灌溉系统(伏尔加格勒地区)关键地块“Chervlenoe”和“Duboovrazhniy”土壤盐度的因素。根据地形、植被、母质、灌溉方式、水提取物(1:5)等因素,对毒盐含量差异进行了多因素分析。结果表明,在两种情况下,决定土壤含盐量的因素都是母质。在两个研究地块中,其对总方差的贡献均大于80%。在情节“Duboovrazhniy”救济也被证明是一个重要因素。人为因素-灌溉方法-不显著。构建了0 ~ 30 cm、30 ~ 100 cm、100 ~ 150 cm、150 ~ 200 cm土层盐度水平发生的累积频率图。两区表层0 ~ 30 cm几乎为无盐土层。“Chervlenoe”地块土壤盐渍化程度有强有极;总的来说,与“Duboovrazhniy”地块相比,该地块的毒性盐含量更高。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Agents of soil salinization in “Chervlenoe” and “Duboovrazhniy” plots of the Svetloyarsk irrigation system
The agents that determine the soil salinity of the key plots “Chervlenoe” and “Duboovrazhniy” of the Svetloyarsk irrigation system (Volgograd region) are studied. We carried out a multifactor analysis of the toxic salts amount variance depending on the following agents: relief, vegetation, parent material and irrigation method, the water extract (1 : 5) being used. It was found that the factors determining the degree of soil salinity in terms of the amount of toxic salts in both cases is parent material. Its contribution into the total variance was more than 80 % for both studied plots. On the plot “Duboovrazhniy” relief also turned out to be a significant factor. Anthropogenic factor – the method of irrigation – was insignificant. The graphs of cumulative frequencies of the occurrence of salinity levels were constructed for soil layers of 0–30 cm, 30–100 cm, 100–150 cm, 150–200 cm. The top soil layer of 0–30 cm is almost non-saline in both areas. On the “Chervlenoe” plot there are strong and very strong degrees of soil salinization; in general, this site is characterized by higher toxic salts amount compared to the “Duboovrazhniy” plot.
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来源期刊
CiteScore
0.90
自引率
0.00%
发文量
15
审稿时长
8 weeks
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