CAJ | 학술논문

以海南热带成熟橡胶林(Hevea brasiliensis）土壤为研究对象，设置了3个实验处理，分别为施用有机肥(T1)、无机肥(T2)和不施肥(CK)，通过采用红外气体分析法，结合对实验胶园环境要素的定位观测和人工施肥措施，研究土壤呼吸与环境要素和施肥措施间的关系，试图揭示热带橡胶园土壤呼吸的形成机制与过程机理，为未来精确模拟热带土壤碳循环过程，及实现通过土壤管理措施和环境要素调控来调节橡胶园土壤的 CO2排放和土壤碳吸收提供科学依据。研究结果表明，（1）3种处理的橡胶林土壤呼吸速率日变化均呈单峰曲线，最高峰出现在13：00左右，T1、T2和CK值分别为：2.63μmol·m-2·s-1、3.74μmol·m-2·s-1和2.98μmol·m-2·s-1；最低点在凌晨4：00左右，值分别为：0.43μmol·m-2·s-1、0.89μmol·m-2·s-1和0.51μmol·m-2·s-1。（2）在周期变化中，3种处理的橡胶林土壤呼吸速率均随温度升高而加快，与温度的变化趋势同步；土壤呼吸与温度存在显著的指数关系，其中5 cm地温同土壤呼吸相关性最好（0.572< R2<0.737），该结果能较好地解释土壤呼吸的变化。（3）土壤呼吸与土壤水分的相关关系较弱（0.189<R2<0.367），P值没有达到显著水平(P>0.05)，未表现出明显的规律性。（4）在不同施肥处理的橡胶林土壤呼吸速率变化中，施有机肥处理的土壤呼吸速率最高(2.07μmol·m-2·s-1)，其次是施无机肥处理的(1.59μmol·m-2·s-1)，最低的是不施肥处理的(1.16μmol·m-2·s-1)。
이해남열대성숙상효림(Hevea brasiliensis）토양위연구대상，설치료3개실험처리，분별위시용유궤비(T1)、무궤비(T2)화불시비(CK)，통과채용홍외기체분석법，결합대실험효완배경요소적정위관측화인공시비조시，연구토양호흡여배경요소화시비조시간적관계，시도게시열대상효완토양호흡적형성궤제여과정궤리，위미래정학모의열대토양탄순배과정，급실현통과토양관리조시화배경요소조공래조절상효완토양적 CO2배방화토양탄흡수제공과학의거。연구결과표명，（1）3충처리적상효림토양호흡속솔일변화균정단봉곡선，최고봉출현재13：00좌우，T1、T2화CK치분별위：2.63μmol·m-2·s-1、3.74μmol·m-2·s-1화2.98μmol·m-2·s-1；최저점재릉신4：00좌우，치분별위：0.43μmol·m-2·s-1、0.89μmol·m-2·s-1화0.51μmol·m-2·s-1。（2）재주기변화중，3충처리적상효림토양호흡속솔균수온도승고이가쾌，여온도적변화추세동보；토양호흡여온도존재현저적지수관계，기중5 cm지온동토양호흡상관성최호（0.572< R2<0.737），해결과능교호지해석토양호흡적변화。（3）토양호흡여토양수분적상관관계교약（0.189<R2<0.367），P치몰유체도현저수평(P>0.05)，미표현출명현적규률성。（4）재불동시비처리적상효림토양호흡속솔변화중，시유궤비처리적토양호흡속솔최고(2.07μmol·m-2·s-1)，기차시시무궤비처리적(1.59μmol·m-2·s-1)，최저적시불시비처리적(1.16μmol·m-2·s-1)。
This paper takes Hainan tropical mature forest soil of rubber plantation as the research object, through the use of infrared gas analysis, combined with the positioning of the experimental observation in environmental factors and artificial fertilization measures. There are three treatments(Application of organic fertilizer(T1), Application of inorganic fertilizer(T2) and no fertilizer(CK)) have been set up in the experiment, and to reveal the relationship between soil respiration and environmental factors and the formation mechanism of fertilization measures, so as to further reveal the mechanism and process of the tropical rubber plantation soil respiration future, for accurate simulation of carbon cycling processes in tropical soil, through the data of soil management practices and environmental factors control adjusting the rubber plantation soil CO2 emission and carbon provides scientific basis for absorption. The results show that 3 treatments of rubber plantation soil respiration rate showed a single peak curve, the peak appeared at about 13:00, respectively:2.63 μmol·m-2·s-1, 3.74 μmol·m-2·s-1 and 2.98 μmol·m-2·s-1, the lowest point in the morning about 4:00 at respectively: 0.43 μmol·m-2·s-1, 0.89 μmol·m-2·s-1 and 0.51 μmol·m-2·s-1. In the cycle, 3 types of rubber plantation soil respiration rate was increased with the increasing of temperature, synchronized with the change trend of temperature;soil respiration and temperature has a significant relationship with soil respiration, which 5cm temperature the best correlation (0.572<R2<0.737) changes can explain better soil respiration. The soil respiration and soil moisture correlation is weak (0.189<R2<0.367), the values of P did not reach significant level (P>0.05), showed no obvious regularity. The changes in the rubber plantation soil respiration rate under different fertilization, organic fertilizer soil respiration rate was the highest (2.07μmol·m-2·s-1), followed by the application of inorganic fertilizer treatment (1.59μmol·m-2·s-1), the lowest is no fertilizer treatment (1.16μmol·m-2·s-1).