论文部分内容阅读
2010—2012年,对甘肃省文冠果人工林的发展历程、人工林资源的数量、分布和生长状况进行了调查研究。结果表明:甘肃省文冠果人工林发展经历了两个阶段,即20世纪60—80年代和2008年到现在;栽培范围涉及全省14个市(州)的10个市(庆阳、平凉、天水、陇南、定西、白银、兰州、武威、张掖和酒泉);人工林资源量达2.18万hm2,其中约2.67 hm2是20世纪60—80年代栽培的,主要分布在甘肃中部和河西地区,多呈块状或散生分布;其余是2008年以后栽植的,涉及以上除酒泉、陇南以外的8个市,主要栽植在退耕地中,其次是农耕地和荒山;农耕地中的文冠果生长最好,其次是退耕地,荒山和低洼地的生长差。
From 2010 to 2012, the paper studied the development of plantation, the quantity, distribution and growth of plantation in the paper. The results showed that the development of the plantation of the plantain had undergone two stages, that is, from the 1960s to the 1980s and from 2008 to the present in the 20th century and to the 10 cities in 14 provinces (Qingyang, Pingliang) , Tianshui, Longnan, Dingxi, Baiyin, Lanzhou, Wuwei, Zhangye and Jiuquan). The plantation resources reached 21,800 hm2, of which about 2.67 hm2 was cultivated in 1960s-1980s and mainly distributed in central Gansu and Hexi areas. Mostly in blocks or scattered distribution; the rest is planted after 2008, involving more than Jiuquan, Longnan outside of the eight cities, mainly in the conversion of cultivated land and barren hills; agricultural land in the crown The best growth, followed by the retreat of cultivated land, barren hills and low-lying poor growth.