防护林科技
防護林科技
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PROTECTION FOREST SCIENCE AND TECHNOLOGY
2013年
10期
20-21
,共2页
王爱清%武赫%朱小刚%铁木尔巴格那%张永忠
王愛清%武赫%硃小剛%鐵木爾巴格那%張永忠
왕애청%무혁%주소강%철목이파격나%장영충
CO2浓度变化%土壤表面CO2排放量%农业生产力
CO2濃度變化%土壤錶麵CO2排放量%農業生產力
CO2농도변화%토양표면CO2배방량%농업생산력
changes of CO2 concentrations%CO2 emissions on soil surface%agricultural productivity
通过对1995-2004年西辽河流域气候变化的分析,运用DNDC模型模拟出土壤表面CO2的排放量,从而分析空气中CO2浓度的增加对土壤表面CO2排放量的影响,同时采用曲线对比分析法,研究CO2浓度变化对该地区的农业总产值及农、林、牧、渔业各产值的影响。结果表明,CO2浓度增加使土壤表面CO2排放量增大,气温升高、降水量减少使土壤表面CO2排放量增加,CO2浓度增加利于农业各产值升高。
通過對1995-2004年西遼河流域氣候變化的分析,運用DNDC模型模擬齣土壤錶麵CO2的排放量,從而分析空氣中CO2濃度的增加對土壤錶麵CO2排放量的影響,同時採用麯線對比分析法,研究CO2濃度變化對該地區的農業總產值及農、林、牧、漁業各產值的影響。結果錶明,CO2濃度增加使土壤錶麵CO2排放量增大,氣溫升高、降水量減少使土壤錶麵CO2排放量增加,CO2濃度增加利于農業各產值升高。
통과대1995-2004년서료하류역기후변화적분석,운용DNDC모형모의출토양표면CO2적배방량,종이분석공기중CO2농도적증가대토양표면CO2배방량적영향,동시채용곡선대비분석법,연구CO2농도변화대해지구적농업총산치급농、림、목、어업각산치적영향。결과표명,CO2농도증가사토양표면CO2배방량증대,기온승고、강수량감소사토양표면CO2배방량증가,CO2농도증가리우농업각산치승고。
Through analysis on changes of climate in western Liaohe River Basin from 1995 to 2004 ,using DNDC model to simulate the CO2 emissions on soil surface ,effects of the increase of CO2 concentration in the air on the CO2 emissions of soil surface were analyzed .Using the curve contrast analytic method ,effects of changes in CO2 concentrations on total agricultural output value and various output values of agricultural ,forest ,herd ,and fishery were studied in this area .Result shows that :increase of the CO2 concentration increase the CO2 emissions on the soil surface ;increase of the temperature & the decrease of precipitation increase CO 2 emissions on the soil surface ;increased CO2 concentration increase the benefit of all agricultural output .