Larix gmelinii Betula platyphylla Mixed stands Growth Yield
本文關(guān)鍵詞:16年生落葉松白樺純林與混交林林分生長(zhǎng)量及生物量對(duì)比,由筆耕文化傳播整理發(fā)布。
16年生落葉松白樺純林與混交林林分生長(zhǎng)量及生物量對(duì)比
Comparison of the Growth and Biomass Production of Monoculture and Mixed Stands of Lar/x gmelinii and Betu- la platyphylla
[1] [2] [3] [4]
Xia Chengcai, Liu Zhongling, Wang Qingcheng, Li Kailong ( State Key Laboratory of Tree Genetics and Breeding (Northeast Forestry University), Harbin 150040, P. R. China)
林木遺傳育種國(guó)家重點(diǎn)實(shí)驗(yàn)室東北林業(yè)大學(xué),哈爾濱,150040
文章摘要:摘要采用標(biāo)準(zhǔn)地調(diào)查法研究了大興安嶺加格達(dá)奇林業(yè)局落葉松、白樺純林和混交林生長(zhǎng)、生物量指標(biāo)。研究結(jié)果表明:落葉松、白樺人工天然混交林較落葉松人工純林和白樺天然純林具有較大幅度的增產(chǎn)效益;旖涣种新淙~松、白樺生長(zhǎng)表現(xiàn)均優(yōu)于各自純林,平均樹高分別高出15.1%和20.5%,平均胸徑分別高出8.0%和2.3%,,平均單株材積分別增加11.5%和15.8%,林分總蓄積量分別增加14.7%和12.3%;旖涣种袉棠緦由锪俊⒏刹纳锪亢椭θ~生物量均顯著高于落葉松純林和白樺純林,全林生物量也較落葉松純林和白樺純林有較大幅度的增加。
Abstr:A survey was conducted to study the growth and biomass production of monoculture and mixed stands of Larix gmelinii and Betu:la platyphylla in Jiagedaqi Forestry Bureau. An obvious increase in stand volume production was found in the mixed stand with planted L. gmelinii and naturally originated B. platyphylla compared with the monoculture stands. Better growth performances of L. gmelinii and B. platyphylla were observed in the mixed stand, with increases of 15.1% , 8.0% and ll. 5% in average tree height, diameter at breast height and stem volume for L. gmelinii, and 20.5%, 2.3% and 15.8% for B. platyphylla, respectively. The total stand volume of the mixed stand was 14.7% and 12.3% higher than that of L. gmelinii and B. platyphylla monocuhure stands, respectively. The biomass values of the whole stand, canopy trees, trunk, branch and foliage in the mixed stand were significantly higher than those in the monoculture stands.
文章關(guān)鍵詞:
Keyword::Larix gmelinii Betula platyphylla Mixed stands Growth Yield Biomass production
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本文關(guān)鍵詞:16年生落葉松白樺純林與混交林林分生長(zhǎng)量及生物量對(duì)比,由筆耕文化傳播整理發(fā)布。
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