草地学报

草地学报 ›› 2026, Vol. 34 ›› Issue (7): 2661-2676.DOI: 10.11733/j.issn.1007-0435.2026.07.028

• 研究论文 • 上一篇    

湖南稗子-盐生植物间作对盐碱地土壤质量与牧草产量的协同提升效应

董朋博1, 高文晓1, 马进燕3, 苏晶晶2, 高总元1, 张峰举2   

  1. 1. 宁夏大学农学院, 宁夏 银川 750021;
    2. 宁夏大学生态环境学院, 宁夏 银川 750021;
    3. 宁夏大学林业与草业学院, 宁夏 银川 750021
  • 收稿日期:2025-09-08 修回日期:2025-11-11 发布日期:2026-07-02
  • 通讯作者: 张峰举，E-mail:zhang_fj@nxu.edu.cn
  • 作者简介:董朋博（1999-），男，汉族，陕西咸阳人，硕士研究生，主要从事盐碱地综合改良与耐盐作物、牧草高效栽培研究，E-mail:Dong_Orange@163.com
  • 基金资助:
    国家重点研发计划项目（2021YFD1900600）；宁夏重点研发计划项目（2022BBF03036）资助

Synergistic Effects of Intercropping Echinochloa Frumentacea with Halophytes on Soil Quality and Forage Yield in Saline-Alkali Land

DONG Peng-bo1, GAO Wen-xiao1, MA Jin-yan3, SU Jing-jing2, GAO Zong-yuan1, ZHANG Feng-ju2   

  1. 1. College of Agriculture, Ningxia University, Yinchuan, Ningxia 750021, China;
    2. School of Ecology and Environment, Ningxia University, Yinchuan, Ningxia 750021, China;
    3. College of Forestry and Prataculture, Ningxia University, Yinchuan, Ningxia 750021, China
  • Received:2025-09-08 Revised:2025-11-11 Published:2026-07-02

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摘要： 为探究耐盐牧草、盐生植物间作对盐碱地土壤的改良效果，本研究通过大田试验，设置CK[湖南稗子（Echinochloa frumentacea）单作]，T1[湖南稗子、盐地碱蓬（Suaeda salsa）间作]，T2[湖南稗子、野榆钱菠菜（Atriplex aucheri）间作]，T3[湖南稗子、盐角草（Salicornia europaea）间作]4个处理。研究了间作不同盐生植物对盐碱地土壤质量及湖南稗子产量的协同提升效应。结果表明：与CK相比，间作处理显著降低了0~40 cm 土层的土壤容重（Soil bulk density，BD）、pH值和全盐量（Total dissolved salt，TDS），其中T1处理降幅最大，分别为8.84%，7.19%，19.86%；土壤孔隙度（Soil total porosity，STP）、有机质（Organic matter，SOM）、碱解氮（Available nitrogen，AN）、有效磷（Available phosphprus，AP）和速效钾（Available potassium，AK）含量显著提高，T1处理增幅分别为13.38%，26.02%，60.01%，26.46%和22.13%；土壤脲酶（Soil urease，UE）、蔗糖酶（Invertase，INV）和过氧化氢酶（Catalase，CAT）活性在T1处理下分别提高了48.86%，45.51%，54.11%，为湖南稗子的出苗和生长提供了良好的土壤环境；T1、T2和T3处理较CK显著提高了湖南稗子产量，增幅分别为55.71%，40.01%，20.95%。湖南稗子产量与土壤孔隙度、土壤肥力和酶活性指标呈显著正相关，与土壤容重和盐碱指标呈显著负相关；基于全数据集的土壤质量指数（Soil quality index，SQI）表现为：T1>T2>T3>CK。综上，湖南稗子与盐地碱蓬间作是提升盐碱地土壤质量和作物生产力的最优模式，可作为宁夏引黄灌区及同类型生态区有效的生物改良措施。

关键词: 盐碱土, 盐生植物, 作物产量, 间作, 土壤质量评价

Abstract: To explore the amelioration effect of intercropping salt-tolerant forage grasses with halophytes on saline-alkali soils， a field experiment was conducted with four treatments： CK （monoculture of Echinochloa frumentacea）， T1 （intercropping E. frumentacea with Suaeda salsa）， T2 （intercropping E. frumentacea with Atriplex aucheri） and T3 （intercropping E. frumentacea with Salicornia europaea）. The synergistic effects of intercropping different halophytes on soil quality and E. frumentacea yield were investigated. Compared with CK， all the intercropping treatments significantly reduced bulk density （BD）， pH and total dissolved salts （TDS） in the 0~40 cm soil layer. The largest reductions （8.84%， 7.19% and 19.86%， respectively） were observed under T1. Soil total porosity （STP）， soil organic matter （SOM）， alkali-hydrolyzable nitrogen （AN）， available phosphorus （AP） and readily available potassium （AK） were markedly increased， with T1 showing the greatest increments （13.38%， 26.02%， 60.01%， 26.46% and 22.13%， respectively）. Activities of soil urease （UE）， invertase （INV） and catalase （CAT） rose by 48.86 %， 45.51% and 54.11% under T1， providing a favorable soil environment for seedling emergence and growth of E. frumentacea. Grain yields under T1， T2 and T3 were significantly higher than that of CK， with increases of 55.71%， 40.01% and 20.95%， respectively. E. frumentacea yield was positively correlated with STP， soil fertility indices and enzyme activities， and negatively correlated with BD and salinity-alkalinity indicators. The soil quality index （SQI） calculated from the full dataset ranked the treatments as T1>T2>T3>CK. In conclusion， intercropping E. frumentacea with S. salsa is the optimal pattern for improving saline-alkali soil quality and crop productivity， and can serve as an effective biological amelioration measure in the Ningxia Yellow River irrigation district and similar ecological regions.

Key words: Saline-alkali soil, Halophytes, Crop yield, Intercropping, Soil quality assessment

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