CAJ | 학술논문

针对科尔沁沙地南缘风蚀沙漠化严重、水资源短缺等突出问题，在大田条件下，以仁用杏、花生、谷子、甘薯为研究对象，进行了旱作农田不同作物配置土壤水分效应及作物响应研究。结果表明，不同作物配置方式在西侧距仁用杏2 m（W2）、1 m（W1）、仁用杏树带下（T0），东侧距仁用杏1 m（E1）、2 m（E2）处土壤水分效应均为负值，且程度不同。在垂直方向上，农林复合系统可有效保持表层土壤水分，但仁用杏与农作物之间也存在着水分竞争，20～80 cm 为水分的主要竞争层，其中40～60 cm 竞争最为强烈，不同作物的竞争程度表现为甘薯＞谷子＞花生；水平方向上，随带距的变化，土壤水分均呈现出中间小、两侧大的开口向上类似抛物线形状的分布趋势，但不同作物表现程度不尽相同。在作物产量方面，间作作物产量均出现一定程度的减产，花生、谷子和甘薯的产量分别比对照降低70．7％、63．3％和64．0％。
침대과이심사지남연풍식사막화엄중、수자원단결등돌출문제，재대전조건하，이인용행、화생、곡자、감서위연구대상，진행료한작농전불동작물배치토양수분효응급작물향응연구。결과표명，불동작물배치방식재서측거인용행2 m（W2）、1 m（W1）、인용행수대하（T0），동측거인용행1 m（E1）、2 m（E2）처토양수분효응균위부치，차정도불동。재수직방향상，농림복합계통가유효보지표층토양수분，단인용행여농작물지간야존재착수분경쟁，20～80 cm 위수분적주요경쟁층，기중40～60 cm 경쟁최위강렬，불동작물적경쟁정도표현위감서＞곡자＞화생；수평방향상，수대거적변화，토양수분균정현출중간소、량측대적개구향상유사포물선형상적분포추세，단불동작물표현정도불진상동。재작물산량방면，간작작물산량균출현일정정도적감산，화생、곡자화감서적산량분별비대조강저70．7％、63．3％화64．0％。
Considering the current status of soil erosion ,desertification and groundwater depletion ,as well as the advantage of intercropping between trees and crops ,we selected peanut ,millet ,sweet potato ,and kernel-apricot to con-struct intercropping systems and investigated their effect on soil water content and crop growth in dry farmland of the Southern Kerqin Sandy Land .Results showed that there are different levels of negative effects of soil water in different points (W2 ,W1 ,T0 ,E1 ,E2) under different systems .Tree-crop intercropping can preserve the surface soil moisture , whereas there existed competition between kernel-apricot and crops ,with 40 ~ 60 cm being the most severest and the or-der of competition degree being potato > millet > peanut .Yields of peanut ,millet ,and sweet potato in the intercropping system were decrease by 70 .7% ,63 .3% ,and 64 .0% as compared to monocropping .