摘要
为了探究巴丹吉林沙漠和腾格里沙漠边缘的民勤县梭梭人工林群落的生态特征,对石羊河林业总场义粮滩分场不同林龄的梭梭人工林的长势、林下植被进行了调查和监测。结果表明:2004年和2011年营造的梭梭至今生长良好,目前植株高度和冠幅均大于1m和1m^2,当年新生枝条长度均大于20cm;目前两年造林梭梭保存率分别为85%和73%;经过自然更新,现有密度均有所提高,林下生长有不同优势种的植物。由于林龄不同,导致两种林地梭梭生长、植被盖度和多样性以及天然更新梭梭植株数量均有很大差异。
In order to explore the ecological characteristics of Haloxylon ammodendron plantation communities in Minqin County on the edge of the Badain Jaran Desert and the Tengger Desert,the growth and undergrowth vegetation of Haloxylon ammodendron plantation at different stand ages in the Yiliangtan Forest Farm of Shiyanghe Forestry Center were investigated and monitored.Result shows that:Haloxylon ammodendron which were silvicultured in 2004&2011 grow well today.The plant height and crown width are both greater than 1 m and 1 m 2.The length of new shoots in the very year is greater than 20 cm.The survival rate of afforestation of Haloxylon ammodendron currently two years is 85%and 73%,respectively;after natural regeneration,the existing density has increased,and plants with different dominant species are grown under the forest.Due to different stand ages,the growth,vegetation coverage and diversity,and the number of naturally updated Haloxylon ammodendron plants are very different.
作者
张勤德
刘伟
白斌
张军
何彩
李栋
董存元
谷英
任德全
Zhang Qinde;Liu Wei;Bai Bin;Zhang Jun;He Cai;Li Dong;Dong Cunyuan;Gu Ying;Ren Dequan(Wuwei Academy of Forestry Science in Gansu Province,Wuwei 733000,China;Yiliangtan Forest Farm of Shiyanghe Forest Farm,Wuwei 733300,China;Shangfangsi Forest Farm in Wuwei City of Gansu Province,Wuwei 733000,China)
出处
《防护林科技》
2019年第11期14-16,37,共4页
Protection Forest Science and Technology
基金
2018年甘肃省陇原青年创新创业人才(团队项目):武威市退化沙生灌木林平茬复壮试验(2018)
关键词
林龄
梭梭林
自然更新
物种多样性
巴丹吉林沙漠
腾格里沙漠
stand age
Haloxylon ammodendron
natural regeneration
species diversity
Badain Jaran Desert
Tengger Desert
