CAJ | 학술논문

借助土箱试验观测研究土壤剧烈扰动条件下的土壤呼吸，并分析灌溉管理与土壤扰动的综合影响。结果表明：由于土壤剧烈扰动导致土壤呼吸通量出现短期的迅速增加，土壤剧烈扰动后两个处理的土壤呼吸峰值均超过800 mg／（ m2· h），而且大部分时间在300 mg／（ m2· h），高于大部分相关报道。对于SI处理，在适宜的水分条件（102％WHC）和土壤剧烈扰动的协同作用下，使土壤CO2呼吸峰值超过了900 mg／（ m2· h）。对于SDI＋SI处理，由于剧烈扰动的影响在非适宜的水分条件下出现了800 mg／（ m2· h）以上的CO2排放峰值，土壤剧烈扰动后灌溉能够显著降低土壤呼吸通量，灌水后随水分达到适宜范围（98％WHC），出现水分调控导致的另一个小高峰，但本研究中水分高峰仅为土壤剧烈扰动后峰值的67％。
차조토상시험관측연구토양극렬우동조건하적토양호흡，병분석관개관리여토양우동적종합영향。결과표명：유우토양극렬우동도치토양호흡통량출현단기적신속증가，토양극렬우동후량개처리적토양호흡봉치균초과800 mg／（ m2· h），이차대부분시간재300 mg／（ m2· h），고우대부분상관보도。대우SI처리，재괄의적수분조건（102％WHC）화토양극렬우동적협동작용하，사토양CO2호흡봉치초과료900 mg／（ m2· h）。대우SDI＋SI처리，유우극렬우동적영향재비괄의적수분조건하출현료800 mg／（ m2· h）이상적CO2배방봉치，토양극렬우동후관개능구현저강저토양호흡통량，관수후수수분체도괄의범위（98％WHC），출현수분조공도치적령일개소고봉，단본연구중수분고봉부위토양극렬우동후봉치적67％。
The paper studied the soil respiration under the condition of intensively disturbed soil by aid of incubation experiment and analyzed the influence of combined irrigation and soil disturbance .The results show that the intensive soil disturbance results in a short-term quick increase of soil respiration .After the soils of two treatment were intensively disturbed , their respiration peak values overhanded 800 mg/( m2 · h) ,and were 300 mg/( m2 · h) for most of the time and higher than that in most reports .For surface irrigation treatment,the peak of soil respiration was higher than 900 mg/(m2· h) under the com-bined effect of both intensive soil disturbance and proper moisture conditions ( about 102%WHC ) .For deep water application treatment , a peak ( higher than 800 mg/( m2 · h) ) appeared under the condition of intensive soil disturbance and the soil moisture of not being fit .The irrigation obviously decreased the amount of soil respiration after the soil was intensively disturbed .The soil moisture appeared another peak when the soil moisture reached the suitable range (98%WHC) .But the peak of soil moisture in the re-search was about 67%of the peak after the soil was intensively disturbed .