Journal Article

A Study on Frost Injury and Restoration on Pueraria wallichii / 马鹿花受冻害与恢复能力的研究

朱绍星, 谷勇, 邹恒芳, 孙汝林, 周榕

2001

Overview

Pueraria wallichii, as a pioneer tree species in dry-hot river areas in Yunnan was planted in a large scale. It has many merits, such as it can resist to drought but not to cold, grow fast in warm areas and can easily sprout. A frosty disaster lasting in 1999 caused frost damage in different degrees to Pueraria wallichii. Based on the analysis on the frost injury in different areas, the paper concludes that(a) The plant can grow when the lowest temperature per day is higher 0 ℃;(b)It begin to suffer from frost injury, while the day continuing with lower than 0 ℃ of the lowest atmospherature per day exceed 3 day and its injury degrees vary with altitude and landform. The injured plants can sprout next spring even if the parts of above ground wilt. 马鹿花(Pueraria w allichii DC.),原产于南亚热带的疏林丛中,具有喜温,不耐寒,耐旱,耐瘠,速生、萌生力强,生物量大等特点。目前已在澜沧江、珠江、怒江流域作为云南干热河谷的先锋树种大面积推广种植,起到了很好的植被恢复、水土保持效果。1999年12月下旬,由于冷空气积聚的影响,云南大部分地区出现了降温,造成持续低温霜冻,旬均温比历年的低1.8～4.5℃,局部地区还出现大雪天气,使种植的部分马鹿花不同程度地遭受低温冻害。为及时探讨研究马鹿花的耐寒能力,进行了该专题的调查研究。

• Publisher: Chinese Academy of Forestry