内蒙古图牧吉春季白鹤觅食地生境初步研究

Foraging habitat of Grus leucogeranus in spring in Tumuji Natural Reserve,Inner Mongolia

白鹤属国家一级重点保护鸟类，在影响白鹤生存的众多因素之中，觅食地的状况对白鹤的生存起到了至关重要的作用。对内蒙古图牧吉国家级自然保护区春季白鹤的觅食地生境用GPS和因子测定方法进行了调查研究。研究结果显示：春季自鹤喜欢在苔草、芦苇、香蒲等为主的沼泽中觅食，苔草高度在40-80cm，芦苇在40-60cm，香蒲在80-100cm。植物盖度主要在0—25％之间，密度≥70棵·m^-1，觅食地水深≤12-18cm。

Grus leucogeranus is a key birds protected at national - level. Research shows that its foraging habitat has played a crucial role in multitudinous factors influencing survival of Grus leucogeranus. Therefore, an investigation on the foraging habitat by GPS and factor determination method was conducted in Tumuji Natural Reserve, Inner Mongolia, China. The results showed that it likes swamp for foraging sedge, reeds and cattail etc. in spring every year; The heights of sedge is at 40 ~ 80 cm, reed is at 40 ~ 60 cm, cattail is at 80 - 100 cm;The coverage of plant is between 0 ~ 25% mainly, density is≥70· m^-2 , foraging depth in water is ≤ 12 - 18 cm.