东北林业大学学报
東北林業大學學報
동북임업대학학보
JOURNAL OF NORTHEAST FORESTRY UNIVERSITY
2015年
5期
64-67
,共4页
杨更强%严成%陈军纪%徐磊%武晓亚%曹秋梅
楊更彊%嚴成%陳軍紀%徐磊%武曉亞%曹鞦梅
양경강%엄성%진군기%서뢰%무효아%조추매
微地形%砾漠%梭梭群落特征
微地形%礫漠%梭梭群落特徵
미지형%력막%사사군락특정
Micro-topography%Gravel desert%Community characteristics of Haloxylon ammodendor nin
以克拉玛依盐渍化砾漠梭梭群落为研究对象,通过对不同形态地形进行植被调查,研究微地形对梭梭植被群落特征的影响。结果表明:研究区域发现植物14种,隶属7科11属,不同地形之间物种组成存在差异;地形改变对梭梭群落草本层和灌木层植被密度、盖度影响显著;地形扰动有利于梭梭群落优势种生物量的提高,地形以深沟效果最优;不同形态地形导致梭梭群落多样性存在差异,深沟物种多样性和丰富度最高,土垄一次之,CK最小。根据梭梭群落盖度、灌木密度、优势种生物量和物种多样性可知,深沟是进行砾漠植被生态恢复的有利工程措施,并为盐渍化砾漠植被恢复提供新途径。
以剋拉瑪依鹽漬化礫漠梭梭群落為研究對象,通過對不同形態地形進行植被調查,研究微地形對梭梭植被群落特徵的影響。結果錶明:研究區域髮現植物14種,隸屬7科11屬,不同地形之間物種組成存在差異;地形改變對梭梭群落草本層和灌木層植被密度、蓋度影響顯著;地形擾動有利于梭梭群落優勢種生物量的提高,地形以深溝效果最優;不同形態地形導緻梭梭群落多樣性存在差異,深溝物種多樣性和豐富度最高,土壟一次之,CK最小。根據梭梭群落蓋度、灌木密度、優勢種生物量和物種多樣性可知,深溝是進行礫漠植被生態恢複的有利工程措施,併為鹽漬化礫漠植被恢複提供新途徑。
이극랍마의염지화력막사사군락위연구대상,통과대불동형태지형진행식피조사,연구미지형대사사식피군락특정적영향。결과표명:연구구역발현식물14충,대속7과11속,불동지형지간물충조성존재차이;지형개변대사사군락초본층화관목층식피밀도、개도영향현저;지형우동유리우사사군락우세충생물량적제고,지형이심구효과최우;불동형태지형도치사사군락다양성존재차이,심구물충다양성화봉부도최고,토롱일차지,CK최소。근거사사군락개도、관목밀도、우세충생물량화물충다양성가지,심구시진행력막식피생태회복적유리공정조시,병위염지화력막식피회복제공신도경。
Based on Haloxylon ammoed ndron community of the salinization gravel desert in Karamay , we studied the vegetation in different forms of terrain to explore the effect of different micro-topography on the community characteristics of H.ammo-dendron.There were 14 species of wild plants in 11 genera and 7 families in the study area.There were differences in spe-cies composition between different terrains .The coverage and density of herbs can be changed by the topography .The bio-mass of dominant species in H.ammodendron community can be improved by the topographic perturbation .The deep groove of terrain was optimum .We found the significant differences of diversity in H.ammodendron community among different to-pographies .The species diversity and richness were highest in deep groove , the ridge was lower and the CK was minimal . The terrain of deep groove was the effective engineering measures to restore the community in salinization of gravel desert according to the coverage of H.ammodendron community, shrub density, and the diversity of species .