CAJ | 학술논문

在分析洞庭湖区东方田鼠暴发成灾史及灾情的基础上,研究了洞庭湖区洲滩演变对东方田鼠暴发成灾的影响.研究认为,中低位洲滩出露面积不断增大使东方田鼠种群迅速膨胀,高位洲滩出露面积减小造成汛期东方田鼠大量向垸内农田迁移;湖区洲滩冬春季连续出露天数增加延长了东方田鼠的繁殖期;汛期洪峰水位增高,洲滩大面积淹没迫使东方田鼠大量迁向垸内;湖内废弃湖堤为东方田鼠逃避洪水提供了中途休养之地;洲滩地抑制东方田鼠种群膨胀的天敌数量已大大减少.据此,本文指出,三峡工程建成后将对洞庭湖区洲滩演变产生重大影响,因而将改变东方田鼠种群生态环境条件,引起种群动态变化,值得注意.
재분석동정호구동방전서폭발성재사급재정적기출상,연구료동정호구주탄연변대동방전서폭발성재적영향.연구인위,중저위주탄출로면적불단증대사동방전서충군신속팽창,고위주탄출로면적감소조성신기동방전서대량향완내농전천이;호구주탄동춘계련속출로천수증가연장료동방전서적번식기;신기홍봉수위증고,주탄대면적엄몰박사동방전서대량천향완내;호내폐기호제위동방전서도피홍수제공료중도휴양지지;주탄지억제동방전서충군팽창적천활수량이대대감소.거차,본문지출,삼협공정건성후장대동정호구주탄연변산생중대영향,인이장개변동방전서충군생태배경조건,인기충군동태변화,치득주의.
On the basis of the analysis on the Yangtze vole's disaster history and condition in Dongting Lake area,the influence of the lake beach's environmental evolution on the vole disaster is studicd in this paper.The rise of low-middle-level beach area causes the vole's population explosion,the reduction of high-level beach area forces the voles into the farmland during the flood season,and the emergence period's continual increase extends the vole's habitat areas and forces them to migrate into the farmland.The discarded dike provides a rest place halfway for the voles,which escape the flood,and the natural enemies of the voles,which are a natural barrier against the vole's population expansion,decreases.According to this study,the conclusions are put for ward as follows:after Three-gorge Project's construction it will produce great influences on the beach evolution in Dongting Lake area,leading to the changes of the vole's ecological environment situation and resulting in the vole's population changes which deserves attention.