白桦和辽东栎纯林腐殖层土壤对9种灌草的化感效应

应用生态学报

白桦和辽东栎纯林腐殖层土壤对9种灌草的化感效应

黄良嘉¹,刘增文^1,2**,朱博超¹,邴塬皓³,张晓曦⁴,吕晨¹

(¹西北农林科技大学资源环境学院, 陕西杨凌 712100; ^2农业部西北植物营养与农业环境重点实验室, 陕西杨凌 712100; ³西北农林科技大学林学院, 陕西杨凌 712100; ⁴西北农林科技大学水土保持研究所, 陕西杨凌 712100)

出版日期:2014-06-18 发布日期:2014-06-18

Allelopathic effects of the humus soils from Betula platyphylla and Quercus liaotungensis pure plantations on 9 kinds of common shrubs and herbs.

HUANG Liang-jia¹, LIU Zeng-wen^1,2, ZHU Bo-chao¹, BING Yuan-hao³, ZHANG Xiao-xi⁴, LU Chen¹

(¹College of Resources and Environment, Northwest A&F University, Yangling 712100, Shaanxi, China; ²Ministry of Agriculture Key Laboratory of Plant Nutrition and Agrienvironment in Northwest China, Yangling 712100, Shaanxi, China; ³College of Forestry, Northwest A&F University, Yangling 712100, Shaanxi, China; ⁴Institute of Soil and Water Conservation, Northwest A&F University, Yangling 712100, Shaanxi, China)

Online:2014-06-18 Published:2014-06-18

摘要/Abstract

摘要： 采集立地条件基本相同的白桦和辽东栎林地及无林荒地(对照)腐殖质层土壤,在塑料大棚内进行9种灌草植物播种盆栽试验,研究森林腐殖质土壤对林下灌草植物的化感效应.结果表明: 白桦林腐殖质土壤显著抑制紫花苜蓿和草木樨种子萌发,降低草木樨、小冠花、紫花苜蓿和胡枝子过氧化氢酶(CAT)活性,提高柠条、小冠花和沙打旺幼苗丙二醛(MDA)含量,小冠花、紫穗槐、紫花苜蓿、草木樨和沙打旺生物量在白桦林腐殖质土壤中显著降低48.2%、45.1%、44.2%、37.3%和36.0%.辽东栎纯林腐殖质土壤显著抑制紫花苜蓿和沙打旺发芽率,降低毛苕子、紫穗槐和紫花苜蓿叶片叶绿素含量,提高胡枝子、柠条、草木樨和沙打旺MDA含量,沙打旺、紫花苜蓿、草木樨和紫穗槐生物量在辽东栎林腐殖质土壤中显著降低52.6%、43.8%、35.5%和34.6%.白桦林腐殖质土壤对紫花苜蓿、草木樨和紫穗槐,辽东栎林腐殖质土壤对紫花苜蓿、沙打旺和紫穗槐生长整体上存在明显化感抑制效应.

Abstract: The humus soils were collected from Betula platyphylla and Quercus liaotungensis pure plantations and woodless land separately where the site conditions were basically the same, and taken as medium for potting culture test of 9 kinds of shrubs or herbs in plastic greenhouse to assess the allelopathic effects of humus soils of pure plantations on shrubs or herbs. Humus soils from B. platyphylla plantation significantly inhibited the seed germinations of Medicago sativa and Melilotus officinalis, decreased the catalase (CAT) activity of M. officinalis, Coronilla varia, M. sativa and Lespedeza davurica, and improved malondialdehyde (MDA) contents in seedlings of Caragana korshinskii, C. varia and Astragalus adsurgens. The biomass growths of C. varia, Amorpha fruticosa, M. sativa, M. officinalis and A. adsurgens in humus soils from B. platyphylla plantation were significantly decreased by 48.2%, 45.1%, 44.3%, 37.3% and 36.0%, respectively. In addition, humus soil of Q. liaotungensis plantation significantly decreased the germination rates of M. sativa and A. adsurgens, the chlorophyll contents of Vicia villosa, A. fruticosa and M. sativa, and improved malondialdehyde (MDA) contents in seedlings of Lespedeza davurica, Caragana korshinskii, M. officinalis and A. adsurgens. The biomass growths of A. adsurgens, M. sativa, M. officinalis and A. fruticosa were significantly decreased by 52.6%, 43.8%, 35.5% and 34.6%, respectively. B. platyphylla plantation humus soil had obvious inhibition effects on M. sativa, M. officinalis and A. fruticosa, while Q. liaotungensis plantation humus soil had obvious inhibition effects on M. sativa, A. adsurgens and A. fruticosa.

黄良嘉1,刘增文1,2**,朱博超1,邴塬皓3,张晓曦4,吕晨1. 白桦和辽东栎纯林腐殖层土壤对9种灌草的化感效应[J]. 应用生态学报.

HUANG Liang-jia1, LIU Zeng-wen1,2, ZHU Bo-chao1, BING Yuan-hao3, ZHANG Xiao-xi4, LU Chen1. Allelopathic effects of the humus soils from Betula platyphylla and Quercus liaotungensis pure plantations on 9 kinds of common shrubs and herbs.[J]. Chinese Journal of Applied Ecology.