青海省退牧还草工程与思考

青海省退牧还草工程实施9年来,已累计完成禁牧封育826.7×104hm2,占全省中度以上退化草地的45.6%。通过监测,退牧区草地植被盖度提高了15%～20%;牧草高度增加了3.5～5.5cm;草地牧草产量提高了26.45%。同时,草地生态环境得到了明显改善,草畜矛盾有所缓解,退牧还草工程的实施效果明显。建议,扩大该项工程在省内的实施范围,增加年度的实施规模,尽快完成全省的退牧还草任务,从而扩大工程的生态经济效益。

CARRIED OUT AND THINKING THE PROJECT OF GIVING UP GRAZING TO RETURN GRASS AND IN QINGHAI

Since carried out the project of giving up grazing to return grass 9 years in Qinghai province, 826.7 × 104hm2 of enclosure and grazing prohibition have been completed, occupy the 45.6% of above moderate de- graded grassland. Through monitoring, vegetation coverage increased from 15% to 20%, grass height in- creased by 3.5 -5.5cm, forage yield increased by 26.45% in giving up grazing grassland. At the same time,grassland ecological environment to get improvement, contradiction of grass cultivate alleviates, the project effect of giving up grazing to return grass is apparent. Recommendations of the project should be expand in Qinghai and increase annual implementation scale as soon as possible. The task of giving up grazing to return grass should be completed, thereby to expand the ecological and economic benefits.