CAJ | 학술논문

本文基于PM公式，结合 LAI数据，考虑冠层截留雨水的蒸发量，针对老哈河流域不同气候区条件，对天然植被进行了实际蒸散发量的测算。比较了在不同气候区条件下，天然植被蒸散发量的差异。结果表明：老哈河流域天然林地的实际蒸散发量明显要大于天然草地的实际蒸散发量。考虑土壤水分条件下，流域内不同气候区间的实际蒸散发量差异并不大，其中土壤水分含量是影响天然植被实际蒸散发量的重要因素。老哈河流域天然草地普遍存在土壤水分胁迫现象，需要在缺水时段，对天然植被进行人工补水，从而维持生态系统的稳定。
본문기우PM공식，결합 LAI수거，고필관층절류우수적증발량，침대로합하류역불동기후구조건，대천연식피진행료실제증산발량적측산。비교료재불동기후구조건하，천연식피증산발량적차이。결과표명：로합하류역천연임지적실제증산발량명현요대우천연초지적실제증산발량。고필토양수분조건하，류역내불동기후구간적실제증산발량차이병불대，기중토양수분함량시영향천연식피실제증산발량적중요인소。로합하류역천연초지보편존재토양수분협박현상，수요재결수시단，대천연식피진행인공보수，종이유지생태계통적은정。
For the natural ecosystem,the quantity of evaporation of vegetation is the main part of the consume water.Different climate zones and vegetation types will lead to different amount of evaporation quantities.Based on PM formula,combined with LAI data and considering the quantity of rainfall evapora-tion intercepted by the canopy,this paper calculates and compares the amount of the actual evaporation of natural vegetation in different climate zones in the basin of Laoha River.The findings show that actual e-vaporation quantity of the natural wood in this basin is significantly more than that of the natural grass-land.Considering the soil moisture condition,there is no significant difference between actual evaporation quantity in different climate zones in the basin.The soil moisture content is the important factor influencing quantity of actual evaporation of the natural vegetation.There are widespread phenomena that natural grasslands are in need of water in the basin of Laoha River.Consequently,the measures should be taken to fill water for natural vegetation artificially to maintain the stability of ecosystem.