水保所知识产出(1956---)知识库

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．

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%，respective-ly． 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．