Effects of Water-collecting and Impermeability Measures on Soil Moisture, Nitrate Nitrogen and Fine Roots of Dense Planting Dwarf Rootstock Apple Orchard

CHEN Dongkai; LUO Han; XIE Yongsheng; Lü Jiaorong

doi:10.13870/j.cnki.stbcxb.2023.06.038

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Effects of Water-collecting and Impermeability Measures on Soil Moisture, Nitrate Nitrogen and Fine Roots of Dense Planting Dwarf Rootstock Apple Orchard

更新时间：2025-03-12

- Effects of Water-collecting and Impermeability Measures on Soil Moisture, Nitrate Nitrogen and Fine Roots of Dense Planting Dwarf Rootstock Apple Orchard
- Vol. 37, Issue 6, Pages: 298-304(2023)
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所, 陕西杨凌,712100
  2. 中国科学院水利部水土保持研究所, 陕西杨凌,712100
  3. 陕西汉唐环保农业有限公司,西安,710065
  4. 中国科学院水利部成都山地灾害与环境研究所,成都,610041
- 作者简介：
- 基金信息：
- DOI：10.13870/j.cnki.stbcxb.2023.06.038
  CLC：
- Published：2023
- 稿件说明：
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CHEN Dongkai, LUO Han, XIE Yongsheng, et al. Effects of Water-collecting and Impermeability Measures on Soil Moisture, Nitrate Nitrogen and Fine Roots of Dense Planting Dwarf Rootstock Apple Orchard[J]. 2023, 37(6): 298-304.
DOI：

CHEN Dongkai, LUO Han, XIE Yongsheng, et al. Effects of Water-collecting and Impermeability Measures on Soil Moisture, Nitrate Nitrogen and Fine Roots of Dense Planting Dwarf Rootstock Apple Orchard[J]. 2023, 37(6): 298-304. DOI： 10.13870/j.cnki.stbcxb.2023.06.038.

摘要

为提高土壤水肥利用效率

探索适宜渭北地区苹果园发展的聚水阻渗措施。通过大田试验

以矮砧密植苹果园为研究对象

分析不同聚水阻渗措施对土壤水分、硝态氮和果树细根的影响。结果表明:在垂直方向

防渗层、起垄+防渗层、起垄+覆膜+防渗层处理均可有效提高0-40 cm土层土壤含水量、硝态氮含量和细根根长密度

其中

起垄+防渗层和起垄+覆膜+防渗层处理土壤含水量和细根根长密度高于防渗层处理

硝态氮含量则低于防渗层处理。在50-100 cm土层

3种处理措施均降低土壤硝态氮含量

有效缓解硝态氮淋溶累积。在水平方向上

起垄+防渗层和起垄+覆膜+防渗层处理使定植带内(树下、株间)土壤含水量与根长密度平均分别提高15.1%

5.0%

硝态氮含量降低8.6%

防渗层与清耕处理相比无显著差异。在施肥沟内(中间点)

3种处理措施使土壤水分含量和细根根长密度增加

土壤硝态氮含量降低

以起垄+覆膜+防渗层处理效果最好

使土壤含水量和细根根长密度分别增加48.6%

48.3%

硝态氮含量降低17.4%。在所有处理措施中

起垄+覆膜+加防渗层处理对果园土壤环境和果树根系的调控效果最佳

研究结果为渭北地区矮砧密植苹果园聚水阻渗技术措施的应用和推广提供参考。

Abstract

In order to improve the utilization efficiency of soil water and fertilizer

the water-collecting and impermeability measures suitable for the development of apple orchards in Weibei area were explored. Through field experiments

the effects of different water-collecting and impermeability measures on soil moisture

nitrate nitrogen and fine roots of dense planting dwarf rootstock apple orchard were analyzed. The results showed that: In the vertical direction

the treatment of seepage control layer

ridging coated

ridging laminating impermeable layer process could effectively increase the soil moisture content

nitrate nitrogen content and fine root length density of 0—40 cm soil layer

and the soil moisture content and fine root length density under the treatment of ridging coated and ridging laminating impermeable layer process were higher than those under the treatment of seepage control layer. The nitrate nitrogen content was lower than that under the treatment of seepage control layer. In the range of 50—100 cm soil layer

three processing measures all reduced soil nitrate nitrogen content

effectively alleviated the leaching accumulation of nitrate nitrogen. In the horizontal direction

the soil water content and root length density in the planting area (under plants and between plants) increased by 15.1%

5.0%

and the nitrate nitrogen content decreased by 8.6% under the treatment of ridging coated and ridging laminating impermeable layer process. But there was no significant difference between the treatment of seepage control layer and clean tillage. In the fertilization area (midpoints)

the three treatments increased the soil moisture content and the density of fine root length

and decreased the soil nitrate nitrogen content. Treatment of ridging laminating impermeable layer process had the best effect

which increased the soil moisture content and the density of fine root length by 48.6%

48.3%

respectively

and reduced the nitrate nitrogen content by 17.4%. Among all the measures

the treatment of ridging laminating impermeable layer process had the best control effect on orchard soil environment and fruit tree root system. The results of this study provided a reference for the application and popularization of the water-collecting and impermeability measures in dense planting dwarf rootstock apple orchard in Weibei area.

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