【摘要】 通过对毛条灌木林进行平茬,在人工灌溉条件下观测平茬毛条生物产量的变化,认为毛条平茬后具有很强的萌蘖能力,可产生原生枝条数4 1倍的萌生枝条;每年灌溉1次,灌水量1050m3/hm2,既可维持平茬毛条林的正常生长;在4株/m2的密度条件下,平茬毛条的年产草量(干质量)可达538g/m2,植被盖度可达78%以上,达到了经济效益和生态效益的共同提高;根据平茬毛条的生长变化规律,可初步确定冬春季节和夏季干旱时期为毛条灌木草场适宜的放牧时间。更多还原

【Abstract】 The biomass change of caragana rororshisrii pasture was tested under artificial irrigation after cutting The branches produced was 41 times more than previous caragana rororshisrii can keep normal growth when irrigated one time at 1050m3/hm2 Annual hay yield can achieve 538 g/m2 and 78% vegetation coverage, with the density of 4plants per squire meter According to the growth rule, the appropriate grazing time of caragana rororshisrii pasture is winter to spring and dry period in summer更多还原