摘要
针对近年来高寒草地退化问题 ,进行了围栏封育、划破草皮和施肥三种改良试验研究。结果表明 ,三种改良措施都增加草群高度、盖度、密度、频度和产量 ,施肥改良使可食牧草产量增加4 5.9%～ 191.1% ;围栏封育使可食牧草产量增加 6 0 .5%～ 158.3% ;划破草皮使可食牧草产量增加 32 .7%～ 113.9%。由此可知 。
An experimental study was conducted to solve degeneration problems in recent years on Alpine grassland and three measures were tested, e.g., fencing, meadow cutting and fertilizing. The results indicated that the three measures all increased height, coverage, density, frequency and weight of community. The fertilizing measure had a significant improving effect on the grassland: the yield edible herbage increased by 45.9%～191.1%; The fencing measure takes second place: the yield of edible herbage increased by 60.5%～158.3%; The meadow cutting had a less improving effect on the grassland: the yield of edible herbage increased by 32.7%～ 113.9%. It was concluded that fertilizing and fencing are effective approaches for improving degraded grassland.
出处
《中国草地》
CSCD
2000年第5期49-54,共6页
Grassland of China
基金
:总后军需部草地研究课题资助
关键词
高寒草地
草地退化
草地改良
草地植被
Fertilizing
\ Fencing
\ Cutting
\ Edible
\ Grassland improvement
