CAJ | 학술논문

为了探讨不同农业环境条件下耕地土壤原生动物群落的演替状况，为土壤生物多样性保护和农业可持续发展提供更多的理论依据，研究了北方耕地常见的3种利用方式---常规大田、温室大棚和露天菜地下土壤原生动物的群落结构及其与土壤理化性质的关系。土壤原生动物群落分析结果表明，常规农田、1a温室大棚和4a温室大棚之间具有明显的演替梯度，在4a温室大棚中鞭毛虫丰度较高，这可能是由于常规农田中土壤翻耕引起了鞭毛虫数量下降。露天菜地内由于较多的肥料投入提高了纤毛虫的丰度。温室大棚和露天菜地这2种耕地利用方式都会强化土壤食物网细菌分解途径。
위료탐토불동농업배경조건하경지토양원생동물군락적연체상황，위토양생물다양성보호화농업가지속발전제공경다적이론의거，연구료북방경지상견적3충이용방식---상규대전、온실대붕화로천채지하토양원생동물적군락결구급기여토양이화성질적관계。토양원생동물군락분석결과표명，상규농전、1a온실대붕화4a온실대붕지간구유명현적연체제도，재4a온실대붕중편모충봉도교고，저가능시유우상규농전중토양번경인기료편모충수량하강。로천채지내유우교다적비료투입제고료섬모충적봉도。온실대붕화로천채지저2충경지이용방식도회강화토양식물망세균분해도경。
In order to protect soil biodiversity and maintain sustainable agriculture ,an experiment was conducted to analyze the relationship between soil protozoa community and soil physico-chemical charac-teristics under three kinds of agricultural land use types ---conventional w heat-maize rotation field ,plas-tic greenhouse ,and open vegetable field .The results of protozoa community analysis indicated that a suc-cession gradient existed from the conventional field to the one-year plastic greenhouse ,then to the four-year one .Tillage brought about a decrease of flagellates in the conventional field ,so there was higher abundance under the four-year plastic greenhouse .More ciliates occurred under the open vegetable field due to the increased fertilizer .Both of the plastic greenhouse and open vegetable field could strengthen the pathw ay of bacterial decomposing .