摘要
2010～2012年利用直线夹日法对锡林郭勒盟苏尼特右旗、苏尼特左旗和二连浩特市的鼠类群落组成及其数量进行了调查,结果显示：三年共捕获13种鼠,其中苏尼特右旗7种,苏尼特左旗6种,二连浩特市10种,各监测点的鼠种占鼠类群落组成比例较高的鼠种不同,表现出各地群落一定的年度差异.多样性指数、丰富度指数三年平为二连浩特市较高,苏尼特右旗居中,苏尼特左旗最低;均匀性指数三年均较接近,优势度指数三年均较低;各监测点鼠类群落各鼠种间的关系存在明显差异.
On typical cultivated grassland in Southern China, the grazing behavior and weight gain of Guizhou black goat were studied by means of tracking observation and weighing. The results showed that the main behavior of goats in the first six grazing hours was ingestion, the time of which was significantly higher than that of the 7th and 8th hour （P〈0.05） ; the main behavior of goats in the 7th and 8th hour were standing and resting, the time of which was significantly higher than that of the first six hours （P〈 0.05）. With the increasing of grazing time （4, 6 and 8h）, the weight gain of goats showed an increasing trend, but the rate of weight gain slowed down and there were no significant differences among the three groups. In conclusion, on typical cultivated grassland in Southern China, the effective grazing time for goats was 6 hours and the optimal time was 4 hours.
出处
《中国草地学报》
CSCD
北大核心
2015年第4期114-118,共5页
Chinese Journal of Grassland
基金
中央级公益性科研院所基本科研业务费专项资助(1610332015012)
国家科技支撑计划项目(2012BAD13B07)
关键词
荒漠草原
鼠类
群落结构
Tracking observation method
Gravimetric method
Foraging behavior
Grazing time
