防护林科技
防護林科技
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PROTECTION FOREST SCIENCE AND TECHNOLOGY
2015年
1期
4-6
,共3页
祁连山%海拔梯度%青海云杉%生物量%树高
祁連山%海拔梯度%青海雲杉%生物量%樹高
기련산%해발제도%청해운삼%생물량%수고
Qilian Mountains%elevation gradient%Picea crassifolia%biomass%tree height
通过野外样地调查和试验,以祁连山典型林分的建群树种青海云杉作为研究对象,研究了青海云杉树高、地上生物量和地下生物量沿海拔梯度的变化规律。结果表明:海拔从低到高,青海云杉树高总体上呈单峰型曲线变化,但总体变化幅度较小,最大值分布在海拔3200 m处,为12.4 m;最小值分布在海拔3300 m 处,其值为7.3 m。地上生物量和地下生物量海拔梯度总体上呈单峰型曲线变化,最大值出现在海拔3200 m 处,分别为3.34 t hm-2和0.92 t hm-2。
通過野外樣地調查和試驗,以祁連山典型林分的建群樹種青海雲杉作為研究對象,研究瞭青海雲杉樹高、地上生物量和地下生物量沿海拔梯度的變化規律。結果錶明:海拔從低到高,青海雲杉樹高總體上呈單峰型麯線變化,但總體變化幅度較小,最大值分佈在海拔3200 m處,為12.4 m;最小值分佈在海拔3300 m 處,其值為7.3 m。地上生物量和地下生物量海拔梯度總體上呈單峰型麯線變化,最大值齣現在海拔3200 m 處,分彆為3.34 t hm-2和0.92 t hm-2。
통과야외양지조사화시험,이기련산전형림분적건군수충청해운삼작위연구대상,연구료청해운삼수고、지상생물량화지하생물량연해발제도적변화규률。결과표명:해발종저도고,청해운삼수고총체상정단봉형곡선변화,단총체변화폭도교소,최대치분포재해발3200 m처,위12.4 m;최소치분포재해발3300 m 처,기치위7.3 m。지상생물량화지하생물량해발제도총체상정단봉형곡선변화,최대치출현재해발3200 m 처,분별위3.34 t hm-2화0.92 t hm-2。
Through field investigations and experiments,taking the dominant tree species of typical forest in Qilian Mountains--Picea crassifolia as the research obj ects,the variation law of tree height,the aboveground biomass and the underground biomass of Piceacrassifolia along elevation gradient was studied.Result shows that:as the al-titude rising,the tree height of Picea crassifolia appears a unimodal curve,and its maximum and minimum tree height is 12.4 m & 7.3 m locate at the altitude of 3 200 m & 3 300 m respectively;aboveground biomass &under-ground biomass appear a unimodal curve also,and the maximum biomass of them are 3.34 t hm-2 &0.92 t hm-2 locate at the altitude of 3 200 m.