Quality Evolution After Aeolian Sandy Soil Improved by Feldpathic Sandstone in Mu Us Sandy Land

Zhang Haiou; Wang Jian; Sun Xiaomei

doi:10.13961/j.cnki.stbctb.2021.04.005

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Quality Evolution After Aeolian Sandy Soil Improved by Feldpathic Sandstone in Mu Us Sandy Land

- Quality Evolution After Aeolian Sandy Soil Improved by Feldpathic Sandstone in Mu Us Sandy Land
- Bulletin of Soiland Water Conservation Vol. 41, Issue 4, Pages: 33-38(2021)
- 作者机构：
  
  1. 陕西省土地工程建设集团有限责任公司,陕西,西安,710075
  2. 陕西地建土地工程技术研究院有限责任公司,陕西,西安,710021
  3. 自然资源部退化及未利用土地整治工程重点实验室,陕西,西安,710021
  4. 陕西省土地整治工程技术研究中心,陕西,西安,710075
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2021.04.005
  CLC： S152.4;S153.6
- Published：2021
- 稿件说明：
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Zhang Haiou, Wang Jian, Sun Xiaomei. Quality Evolution After Aeolian Sandy Soil Improved by Feldpathic Sandstone in Mu Us Sandy Land[J]. Bulletin of Soiland Water Conservation, 2021, 41(4): 33-38.
DOI：

Zhang Haiou, Wang Jian, Sun Xiaomei. Quality Evolution After Aeolian Sandy Soil Improved by Feldpathic Sandstone in Mu Us Sandy Land[J]. Bulletin of Soiland Water Conservation, 2021, 41(4): 33-38. DOI： 10.13961/j.cnki.stbctb.2021.04.005.

摘要

[目的

]

研究毛乌素沙地砒砂岩与沙复配土壤长期作物种植后质量的演变，旨在为了解复配土壤结构发育状况及可持续利用提供科学依据。[方法

]

基于2010—2018年对砒砂岩与沙体积比为1：1，1：2，1：5复配土壤的田间小区试验，主要分析不同种植年限下复配土壤水稳性团聚体、有机质含量及作物产量的动态变化特征。[结果

]

随着试验开展，3种比例复配土壤>0.25 mm粒径水稳性团聚体含量、平均重量直径（MWD）值和有机质含量整体呈增加趋势，与种植前相比，种植9 a后，1：1，1：2，1：5比例复配土壤>0.25 mm粒径水稳性团聚体分别增加了2.71，3.31和4.24倍，成为团聚体的主要组成部分；1：1，1：2，1：5比例复配土壤有机质含量分别提高了8.24，10.62和13.76倍。2011年不同比例复配土壤马铃薯产量大小顺序为：1：2>1：1>1：5，种植8年后1：1，1：2，1：5比例复配土壤马铃薯产量分别增加了3.27，4.25和6.96倍，产量大小顺序为：1：5>1：2>1：1，其中1：5复配土壤马铃薯产量提升速率最显著，多年平均产量高达53 850 kg/hm

，与当地高产田产量持平。[结论

]

随着马铃薯种植年限的增加，3种比例复配土壤理化性状得到改良，复配土壤结构得到日益优化，尤其是能有效促进1：5复配土壤有机化和水稳性团聚体的形成，并且马铃薯增产的效果最优。因此1：5复配比例适宜马铃薯生长。

Abstract

[Objective] The compound soil of Feldpathic Sandstone and sand in Mu Us Sandy Land belongs to artificial reconstructed soil. The quality evolution of the compound soil after long-term crop planting was studied

in order to provide scientific basis for understanding the structure development and sustainable utilization of the compound soil. [Methods] Based on the field plot experiments of compound soil a with volume ratios of 1:1

1:2 and 1:5 of Feldpathic Sandstone to sand during the period from 2010 to 2018

the dynamic change characteristics of water-stable aggregates

organic matter content and crop yield in the compound soils under different planting years were analyzed. [Results] With the development of the experiment

the content of water-stable aggregates with diameter>0.25 mm

average weight diameter (MWD) value and organic matter content in the three proportions of compound soils showed an overall increasing trend. After 9 years of planting

water-stable aggregates >0.25 mm in 1:1

1:2 and 1:5 compound soil increased by 2.71

3.31 and 4.24 times

respectively

and became the main component of aggregates. The soil organic matter content increased by 8.24

10.62 and 13.76 times

respectively. In 2011

the potato yield order in different proportion of compound soil was showed as: 1:2 > 1:1 > 1:5

after 8 years of planting

the potato yield increased by 3.27

4.25 and 6.96 times

respectively

and the yield order was 1:5 > 1:2 > 1:1. Among them

the potato yield in the 1:5 compound soil increased most significantly. The average yield for many years was as high as 53 850 kg/ha

which was equal to the yield of local high-yield fields. [Conclusion] With the increase of potato planting years

the physical and chemical properties of the three-proportion compound soil have been improved

and the compound soil structure has been increasingly optimized. In particular

it can effectively promote the formation of 1:5 compound soil organic and water stable aggregates

and the effect of potato yield increase is the best

so the ratio of 1:5 compound soil is suitable for potato growth.

关键词

Keywords

references

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