功能性状对乡土植物混播草地产量及稳定性的影响

doi:10.11733/j.issn.1007-0435.2024.08.003

草地学报 ›› 2024, Vol. 32 ›› Issue (8): 2357-2365.DOI: 10.11733/j.issn.1007-0435.2024.08.003

• 研究论文 • 上一篇

功能性状对乡土植物混播草地产量及稳定性的影响

禹安然^1,2,3, 杨彦泽^1,2,3, 乔冠栋^1,2,3, 张俊^1,2,3, 董一丁^1,2,3, 侯向阳^1,2,3, 路文杰^1,2,3

1. 山西农业大学草业学院, 山西太谷 030801;
2. 农业农村部饲草高效生产模式创新重点实验室, 山西太谷 030801;
3. 草地生态保护与乡土草种质资源创新山西省重点实验室, 山西太谷 030801

收稿日期:2024-04-09 修回日期:2024-05-27 发布日期:2024-09-07
通讯作者: 路文杰,E-mail:luwenjie1231104@126.com
作者简介:禹安然(1997-),女,汉族,河南郑州人,硕士研究生,主要从事草地资源与生态研究,E-mail:422566460@qq.com
基金资助:
山西省应用基础研究计划(202203021221166);山西农业大学科技创新基金(2018YJ38)资助

Effects of Functional Traits on Yield and Stability of Native Plant Mixed Sowing Grassland

YU An-ran^1,2,3, YANG Yan-ze^1,2,3, QIAO Guan-dong^1,2,3, ZHANG Jun^1,2,3, DONG Yi-ding^1,2,3, HOU Xiang-yang^1,2,3, LU Wen-jie^1,2,3

1. College of Grassland Science, Shanxi Agricultural University, Taigu, Shanxi Province 030801, China;
2. Key Laboratory of Model Innovation in Forage Production Efficiency, Ministry of Agriculture and Rural Affairs, P. R. China, Taigu, Shanxi Province 030801, China;
3. Shanxi Key Laboratory of Grassland Ecological Protection and Native Grass Germplasm Innovation, Taigu, Shanxi Province 030801, China

Received:2024-04-09 Revised:2024-05-27 Published:2024-09-07

摘要/Abstract

摘要： 功能性状能够量化植物生理生态特征并预测生态系统功能。为探究功能性状对乡土植物混播草地群落产量和稳定性的影响，本研究以乡土植物羊草(Leymus chinensis)、赖草(Leymus secalinus)、扁蓿豆(Medicago ruthenica)和非乡土植物紫花苜蓿(Medicago sativa)为试验材料，分别设置各物种单播以及羊草-扁蓿豆、羊草-扁蓿豆-赖草、羊草-扁蓿豆-赖草-苜蓿混播，比较不同处理下产量和稳定性的差异，并基于性状加权平均值和功能多样性指数，探究功能性状对群落产量及稳定性的影响。结果表明：两物种和三物种混播产量较低，三物种和四物种群落稳定性在大部分时期都高于两物种；功能多样性指数的增大有利于维持群落稳定。光合速率和呼吸速率的提高会对稳定性产生负面影响。综上所述，混播处理没有显著提高产量，两物种组合稳定性较差，光合速率和呼吸速率以及功能多样性是影响稳定性变化的关键因素。

关键词: 乡土植物, 混播, 功能性状, 功能多样性, 生态位互补效应

Abstract: Functional traits can be used to quantify the physiological and ecological characteristics of plants and to predict ecosystem functions. To explore the impact of plant functional traits on the yield and stability of native plant mixed sowing grassland,in this study we used native plants Leymus chinensis, Leymus secalinus, Medicago ruthenica,and the non-native plant Medicago sativa as experimental materials. The experiments were set up with monoculture of each species,mixture sowing of Leymus chinensis-Medicago ruthenica,Leymus chinensis-Medicago ruthenica-Leymus secalinus,and Leymus chinensis-Medicago ruthenica-Leymus secalinus-Medicago sativa. The differencesof yield and stability under different treatments were compared. Based on the weighted mean and functional diversity of plant traits the impact of functional traits on community yield and stability were explored. The results showed that two-species and three-species mixture sowing had lower yields. The stability of three-species and four-species communities was higher than two-species communities during most of the periods. The promotion of functional diversity was beneficial for maintaining community stability. The increased of photosynthetic rate and respiration rate had a negative impact on stability. The yield of mixture sowing treatments didn’t significantly increase,and the stability of two-species combination was poor. The key factors influencing stability changes were photosynthetic rate,respiration rate,and functional diversity.

Key words: Native plants, Mixed sowing, Functional traits, Functional diversity, Niche complementary effect

中图分类号:

S543+41

禹安然, 杨彦泽, 乔冠栋, 张俊, 董一丁, 侯向阳, 路文杰. 功能性状对乡土植物混播草地产量及稳定性的影响[J]. 草地学报, 2024, 32(8): 2357-2365.

YU An-ran, YANG Yan-ze, QIAO Guan-dong, ZHANG Jun, DONG Yi-ding, HOU Xiang-yang, LU Wen-jie. Effects of Functional Traits on Yield and Stability of Native Plant Mixed Sowing Grassland[J]. Acta Agrestia Sinica, 2024, 32(8): 2357-2365.

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功能性状对乡土植物混播草地产量及稳定性的影响

Effects of Functional Traits on Yield and Stability of Native Plant Mixed Sowing Grassland

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