CAJ | 학술논문

针对宁夏退耕还林、还草重点区域进行研究,采用"逐步订正法"计算该地区近50年的气候生产潜力和光温生产潜力.宁夏灌区、中部干旱带、南部山区玉米的光温生产潜力呈线性增加趋势,但考虑光、温、水3因素的气候生产潜力,因降水稀少而数值很低,无灌溉便无农业;中部干旱带冬小麦的光温生产潜力、气候生产潜力无明显趋势,但气候生产潜力变幅很大,南部山区冬小麦光温生产潜力无明显变化趋势:气候生产潜力呈弱的下降趋势,说明冬小麦生产受到水分的极大制约.利用RegCM3-WOFOST/LINGRA耦合模式模拟的气象要素数据计算了未来宁夏中、南部冬小麦气候生产潜力,均呈弱的增长趋势,说明退耕还林后宁夏气候有利于冬小麦产量的提高.
침대저하퇴경환림、환초중점구역진행연구,채용"축보정정법"계산해지구근50년적기후생산잠력화광온생산잠력.저하관구、중부간한대、남부산구옥미적광온생산잠력정선성증가추세,단고필광、온、수3인소적기후생산잠력,인강수희소이수치흔저,무관개편무농업;중부간한대동소맥적광온생산잠력、기후생산잠력무명현추세,단기후생산잠력변폭흔대,남부산구동소맥광온생산잠력무명현변화추세:기후생산잠력정약적하강추세,설명동소맥생산수도수분적겁대제약.이용RegCM3-WOFOST/LINGRA우합모식모의적기상요소수거계산료미래저하중、남부동소맥기후생산잠력,균정약적증장추세,설명퇴경환림후저하기후유리우동소맥산량적제고.
The key zones of retuming farmland to forestland and grassland in Ningxia were studied. By using the "stepwise revised method",the climate productive potential, light and temperature productive potential in the zone in recent 50 years were counted. The light and temperature productive potential of corn in Ningxia irrigated area, the central arid zone and the southern mountain area presented the linear increase trend. But when considered the climate productive potentials of light, temperature and water, the numerical value was very low because of the scarce rainfall, and no agriculture without the irrigation. The light and temperature productive potential, climate productive potential of winter wheat in the central arid zone had no significant trend, but the variation range of climate productive potential was very big. The light and temperature productive potential of winter wheat in the southern mountain area had no significant variation trend, and the climate productive potential presented the weak decline trend. It illustrated that the productive of winter wheat was greatly restricted by the water content. By using the meteorological factor data which were simulated by RegCM3-WOFOST/LINGRA coupled model, the future climate productive potentials of winter wheat in the central south of Ningxia was counted. They both presented the weak increase trend. it illustrated that the climate in Ningxia was favorable to improve the yield of winter wheat after retumng farmland to forestland.