砒砂岩改良风沙土对2种引进植物生长和氮磷营养的影响

范陈斌; 武苗苗; 苏睿; 张泽坤; 何红花

doi:10.13870/j.cnki.stbcxb.2019.03.034

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砒砂岩改良风沙土对2种引进植物生长和氮磷营养的影响

更新时间：2025-03-12

- 砒砂岩改良风沙土对2种引进植物生长和氮磷营养的影响
- Effects of Pisha Sandstone-Amended Aeolian Sandy Soil on Growth, Nitrogen and Phosphorus Nutrition of Two Introduced Plants
- 水土保持学报 2019年33卷第3期页码：228-234
- 作者机构：
  
  1. 西北农林科技大学水土保持研究所, 黄土高原土壤侵蚀与旱地农业国家重点实验室, 陕西杨凌,712100
  2. 西北农林科技大学资源环境学院, 陕西杨凌,712100
- 作者简介：
  
  [ "范陈斌(1994-),男,贵州遵义人,硕士研究生,主要从事区域林草生态恢复研究。E-mail:fanchenbin@nwsuaf.edu.cn" ]
- 基金信息：
  
  国家重点研发计划项目（2017YFC0504504）
- DOI：10.13870/j.cnki.stbcxb.2019.03.034
  中图分类号：
- 纸质出版：2019
- 稿件说明：
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范陈斌, 武苗苗, 苏睿, 等. 砒砂岩改良风沙土对2种引进植物生长和氮磷营养的影响[J]. 水土保持学报, 2019,33(3):228-234.

FAN Chenbin, WU Miaomiao, SU Rui, et al. Effects of Pisha Sandstone-Amended Aeolian Sandy Soil on Growth, Nitrogen and Phosphorus Nutrition of Two Introduced Plants[J]. 2019, 33(3): 228-234.
范陈斌, 武苗苗, 苏睿, 等. 砒砂岩改良风沙土对2种引进植物生长和氮磷营养的影响[J]. 水土保持学报, 2019,33(3):228-234. DOI： 10.13870/j.cnki.stbcxb.2019.03.034.

FAN Chenbin, WU Miaomiao, SU Rui, et al. Effects of Pisha Sandstone-Amended Aeolian Sandy Soil on Growth, Nitrogen and Phosphorus Nutrition of Two Introduced Plants[J]. 2019, 33(3): 228-234. DOI： 10.13870/j.cnki.stbcxb.2019.03.034.

摘要

通过室内盆栽模拟试验，设计风沙土、砒砂岩、黄绵土、覆土砒砂岩、覆沙砒砂岩和砒砂岩改良风沙土6个土壤处理，种植鲁冰花和墨西哥玉米草2种引进植物，研究2种植物在砒砂岩改良风沙土和晋陕蒙接壤区原有土壤类型中的生长和氮磷营养差异，为该区域植被恢复提供理论依据。结果表明：（1）植物在砒砂岩改良风沙土中根系生长好，总体生物量大，鲁冰花地上生物量相较于黄绵土增幅达到242%，地下生物量相较于风沙土增幅达到186%，根长和根体积相较于风沙土增幅达到388%和290%）（2）2种引进植物根系在不同的土壤环境中表现出不同的适应特征，鲁冰花比根长在砒砂岩改良风沙土中最大，风沙土中最小，墨西哥玉米草比根长在黄绵土中最大，砒砂岩改良风沙土中最小）鲁冰花和墨西哥玉米草根系中直径d≤0.45 mm的细根体积占总根体积的百分比在砒砂岩改良风沙土中均较小，分别为9.99%和13.94%）（3）所有处理中植物的氮和磷含量均低于植物在正常生长条件下的氮和磷含量，植物生长受到氮和磷养分限制，并且植物氮磷比小于14，植物生长受氮素限制更严重。与几种原有土壤类型相比，砒砂岩改良风沙土土壤理化性质更好，土壤生产力高，更适宜植物生长，可以应用于晋陕蒙接壤区的植被恢复，但在种植过程中应考虑适当施用氮肥和磷肥，以加快植被恢复进程。

Abstract

Through indoor pot experiment

two introduced species

i.e. Lupinus micranthus and Purus frumentum were cultured in Pisha sandstone-amended aeolian sandy soil

aeolian sandy soil

Pisha sandstone

loessial soil

Pisha sandstone covered by aeolian sandy soil and Pisha sandstone covered by loessial soil. The objective of this study was to investigate the differences in growth

nitrogen and phosphorus nutrition of two introduced species planted in Pisha sandstone-amended aeolian sandy soil and primary soil types in the contiguous areas of Shanxi

Shaanxi and Inner Mongolia

and provide references for the vegetation restoration of this area. The results showed that:(1) Pisha sandstone-amended aeolian sandy soil was better for the growth of plant root system

the total biomass was large

the above-ground biomass of L. micranthus in the Pisha sandstone-amended aeolian sandy soil was 242% higher than that in loessial soil

and the underground biomass was 186% higher than that in the aeolian sandy soil

the root length and volume were 388% and 290% higher than those in the aeolian sandy soil

respectively; (2) The root system of the two introduced plants showed different adaptive characteristics in different soil treatments

specific root length of L. micranthus was the largest in the Pisha sandstone-amended aeolian sandy soil and the least in the aeolian sandy soil

while that of P. frumentum was the largest in the loessial soil and the least in the Pisha sandstone-amended aeolian sandy soil. The volume fraction of roots less than or equal to 0.45 mm diameter was only 9.99% for L. micranthus and 13.94% for P. frumentum in the Pisha sandstone-amended aeolian sandy soil

which were smaller than those in other soils; (3) The nitrogen and phosphorus concentrations of plants in all treatments were lower than those under normal growth conditions

indicating that plant growth was restricted by nitrogen and phosphorus. The nitrogen-phosphorus ratios in all plants were less than 14

suggesting that plant growth was more severely limited by nitrogen than by phosphorus. Compared with several original soil types

the Pisha sandstone-amended aeolian sandy soil had better physiochemical properties and a higher productivity

and more suitable for plant growth

it could be applied to vegetation restoration in the contiguous areas of Shanxi

Shaanxi and Inner Mongolia in northwestern China. However

appropriate application of nitrogen and phosphate fertilizers should be considered to accelerate the process of vegetation restoration.

关键词

Keywords

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