摘要
采用全面清查法,对区域古树资源进行信息采集,分析克拉玛依市乌尔禾区古树资源现状及存在的问题。结果表明:区域内保存古树154株,其平均年龄为120.69 a,平均胸径为95.64 cm,平均树高为11.82 m,以胡杨为主(152株),主要分布在各林班边缘区,以4林班和5林班为主,城镇区也有一定的保存,古树伴生植物普遍较少;区域土壤特性,尤其是土壤含水量是古树衰弱的主要外部因素,而生理性衰弱是其主要内因,此外病虫害、人类活动、动物活动等也导致其衰弱;致古树衰弱因子排序为:土壤水分>虫害>病害>人类活动>土壤厚度>生理老化>动物活动>地形变量>风,建议对散生古树采取复壮沟技术,改善铺装材料,种植地被并对根部打孔挖穴来增加土壤通气透水性。
A comprehensive inventory method was used to collect information of regional ancient tree resources and analyze the status quo and existing problems of ancient tree resources in Urho district of Karamay city.The results showed that 154 old trees were preserved in the area,with an average age of 120.69 a,a mean diameter at breast height(DBH)of 95.64 cm,an average tree height of 11.82 m,and mainly Populus euphratica(152),mainly distributed in marginal areas of each forest class.4 Forest classes and 5 forest classes were dominant,urban areas were also preserved,and associated plants of ancient trees are generally less;regional soil properties,especially soil moisture content,were the major external factors for the decline of ancient trees,and physiological decline were the main intrinsic factors.In addition to pests,human activities,animal activities,etc.,were also debilitating;the order of debilitating factors caused by ancient trees were:soil moisture>pests>diseases>human activities>soil thickness>physiological aging>animal activities>terrain variables>wind,recommended scattered ancient trees to take rejuvenation ditch technology,improve the pavement material,planting ground and digging holes in the roots to increase soil aeration and water permeability.
作者
叶尔江·拜克吐尔汉
吴瑞航
努尔塔依·铁利汗
赵文
陈献震
陈俊祥
Yeerjiang Baiketuerhan;Wu Ruihang;Nuertayi Tielihan;Zhao Wen;Chen Xianzhen;Chen Junxiang(College of Forestry and Horticulture,Xinjiang Agricultural University/Key Laboratory at Universities of Education Department of Xinjiang Uygur Autonomous Region,Urumqi 830052,China;Urho District Housing and Urban-Rural Development Bureau,Karamay 834014,China;Urho District Agriculture,Forestry,Water and Animal Husbandry Bureau,Karamay 834014,China)
出处
《中国野生植物资源》
CSCD
2019年第6期66-72,共7页
Chinese Wild Plant Resources
基金
乌尔禾区科技计划项目(2017WEH07)
关键词
乌尔禾区
古树
资源分布
保存现状
土壤水分
Wuerhe district
Ancient trees
Resource distribution
Preserve actuality
Soil moisture
