CAJ | 학술논문

2001～2008年,通过对江西省上饶市弋阳越冬区中华秋沙鸭种群数量和越冬区生态因子进行研究,结果发现,2001～2005年间,中华秋沙鸭的种群数量在逐渐减少:而在2006～2008年间,又呈显著增加的变化趋势.且中华秋沙鸭在越冬区的生活不稳定,常沿河流逐步迁徙,只作短暂停留,越冬区的范围分布较散.越冬区生态因子的改变和人为干扰是其种群数量下降的主要原因,而其生境的改善和食物来源的丰富与其种群数量的增加有着密切的关系.
2001～2008년,통과대강서성상요시익양월동구중화추사압충군수량화월동구생태인자진행연구,결과발현,2001～2005년간,중화추사압적충군수량재축점감소:이재2006～2008년간,우정현저증가적변화추세.차중화추사압재월동구적생활불은정,상연하류축보천사,지작단잠정류,월동구적범위분포교산.월동구생태인자적개변화인위간우시기충군수량하강적주요원인,이기생경적개선화식물래원적봉부여기충군수량적증가유착밀절적관계.
Population change of Mergus squamatus and zoology factors of habitat were studied in Yiyang wintering habitat,Shangrao city,Jiangxi province from 2001 to 2008. The results showed that M. squamalus population had declined slowly from 2001 to 2005,but increased remarkably from 2006 to 2008. They lived in wintering habitat unstably,always migrated along the riverside and settled shortly. Their wintering habitat was distributed dispersedly. The important factors contributing to the M. squamatus population decline were change of wintering habitat zoology factors and man-made disturbance. The improvement of its living condition and the enrichment of its food source both had consanguineous relation with its population quantity.