西南林业大学学报
西南林業大學學報
서남임업대학학보
Journal of Southwest Forestry University
2015年
5期
42-45
,共4页
美洲黑杨%引种%栽培%适应性
美洲黑楊%引種%栽培%適應性
미주흑양%인충%재배%괄응성
Populus deltoides%introduction%cultivation%adaption
以1年生美洲黑杨大苗为研究材料,通过在昆明市盘龙区阿子营、宜良、禄劝、寻甸种植美洲黑杨,分析其在昆明地区的适应性及耐水湿性。结果表明:在阿子营、宜良、禄劝3个区域土壤厚度为85~100 cm,土壤肥力较好的农田林网附近的平地栽植美洲黑杨,种植3年后苗木的存活率均达到95%以上,3 a 内苗木树高、胸径、冠幅年平均增长量依次为4.2 m、4 cm、93.6 cm,3 a 后美洲黑杨在阿子营、宜良、禄劝地区内树高均达到14 m 以上,胸径达13 cm,冠幅达310 cm 以上,其生长情况已经达到速生杨树在其适生地的正常生长水平;地下水位分别是50、100、150 cm 的3个不同地块种植美洲黑杨,其种植3年后保存率均达到85%左右,其中地下水位为100 cm 的地块种植的美洲黑杨生长情况最佳;栽植山体中上部的美洲黑杨保存率较山体下部(水岸旁)较低,生长情况较差,感虫率高,枯枝率高,因此,山体中上部不适宜美洲黑杨的栽植。
以1年生美洲黑楊大苗為研究材料,通過在昆明市盤龍區阿子營、宜良、祿勸、尋甸種植美洲黑楊,分析其在昆明地區的適應性及耐水濕性。結果錶明:在阿子營、宜良、祿勸3箇區域土壤厚度為85~100 cm,土壤肥力較好的農田林網附近的平地栽植美洲黑楊,種植3年後苗木的存活率均達到95%以上,3 a 內苗木樹高、胸徑、冠幅年平均增長量依次為4.2 m、4 cm、93.6 cm,3 a 後美洲黑楊在阿子營、宜良、祿勸地區內樹高均達到14 m 以上,胸徑達13 cm,冠幅達310 cm 以上,其生長情況已經達到速生楊樹在其適生地的正常生長水平;地下水位分彆是50、100、150 cm 的3箇不同地塊種植美洲黑楊,其種植3年後保存率均達到85%左右,其中地下水位為100 cm 的地塊種植的美洲黑楊生長情況最佳;栽植山體中上部的美洲黑楊保存率較山體下部(水岸徬)較低,生長情況較差,感蟲率高,枯枝率高,因此,山體中上部不適宜美洲黑楊的栽植。
이1년생미주흑양대묘위연구재료,통과재곤명시반룡구아자영、의량、록권、심전충식미주흑양,분석기재곤명지구적괄응성급내수습성。결과표명:재아자영、의량、록권3개구역토양후도위85~100 cm,토양비력교호적농전림망부근적평지재식미주흑양,충식3년후묘목적존활솔균체도95%이상,3 a 내묘목수고、흉경、관폭년평균증장량의차위4.2 m、4 cm、93.6 cm,3 a 후미주흑양재아자영、의량、록권지구내수고균체도14 m 이상,흉경체13 cm,관폭체310 cm 이상,기생장정황이경체도속생양수재기괄생지적정상생장수평;지하수위분별시50、100、150 cm 적3개불동지괴충식미주흑양,기충식3년후보존솔균체도85%좌우,기중지하수위위100 cm 적지괴충식적미주흑양생장정황최가;재식산체중상부적미주흑양보존솔교산체하부(수안방)교저,생장정황교차,감충솔고,고지솔고,인차,산체중상부불괄의미주흑양적재식。
In this study,Populus deltoides of one year old plant cultivated in some area surrounding Kunming, such as Aziying,Yiliang,Luqian,Xundian,in which have favorable soil condition and thickness of soil have reached 85 -100 cm,were conducted to study the adaptation and flooding tolerance of Populus deltoides planted in Kunming city.The results showed that Populus deltoides planted for three years,survival rate of Populus deltoides in Aziying,Yiliang,Luqian were above 95%,and then growth of average height,of average diameter at breast height and of average canopy on nursery-grown plant were 4.2 m,4 cm,93.6 cm,respectively.Simultaneously,the growth of average height,diameter at breast height and canopy had reached 14 m,13 cm,and 310 cm respectively at place of Aziying,Yiliang,Luqian.Compared with habitat and suitable area,its growing states achieved normal fast-growing level at the three regions.Populus deltoides planted in plots of underground level of 50 cm,100 cm and 150 cm for three years,the average survival rate was about 85%.Among of them,the growth of Populus del-toides was the best in underground water level of 100 cm.It was worse for growth condition of Populus deltoides in coteau plots than in dam beside highway,especially in side of rate of infection diseases and pests,the death rate of branch.Consequently,Populus deltoides should not planted at middle-upper part of coteau.