Research on Structure Control of High Y ield B am busa oldham iBamboo Shoot Stands Ba sing on N /S

CHEN Shuang-lin; YANG Qing-ping; CHEN Chang-yuan

According to the charaters of sympodial bamboo which developed an uniform clone of the whole clump,this paper p romoted the concep tion of N /S for sympodial bamboo stands structure: the number of living culms (N )to the surface of the subterranean parts occup ied of a clump (S ). The structure control of high efficiency utilizingenvironment resources for bamboo stands on B am busa oldham i was investigated. The results suggested that therelationship of N /S and cluster shoots output showed a single-peak parabola, and the best ratio of N /S was 4. 0—5. 0 culms·m-2. the surface of the subterranean parts occup ied of a clump increased with cluster crown linearly.Environment utilizing efficiency could be increased by increasing p lant density and expanding the surface of thesubterranean parts. The normal high yield structures were as following: individual numbers was 9 200—11 500culms·hm-2 , the surface of the subterranean parts was 2 300 m2 ·hm-2 , soil utilizing efficiency app roach to23. 0% , and p lant density could be increased to about 1 050 clusters·hm-2.

1. Research Institute of Subtrop ical Forestry, CAF, Fuyang　311400, Zhejiang, China

2. Forestry Bureau of Zhangpu County, Zhangpu　363200, Fujian, China

Received Date: 2007-10-05

Abstract: According to the charaters of sympodial bamboo which developed an uniform clone of the whole clump,this paper p romoted the concep tion of N /S for sympodial bamboo stands structure: the number of living culms (N )to the surface of the subterranean parts occup ied of a clump (S ). The structure control of high efficiency utilizingenvironment resources for bamboo stands on B am busa oldham i was investigated. The results suggested that therelationship of N /S and cluster shoots output showed a single-peak parabola, and the best ratio of N /S was 4. 0—5. 0 culms·m-2. the surface of the subterranean parts occup ied of a clump increased with cluster crown linearly.Environment utilizing efficiency could be increased by increasing p lant density and expanding the surface of thesubterranean parts. The normal high yield structures were as following: individual numbers was 9 200—11 500culms·hm-2 , the surface of the subterranean parts was 2 300 m2 ·hm-2 , soil utilizing efficiency app roach to23. 0% , and p lant density could be increased to about 1 050 clusters·hm-2.

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Reference (18)

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Research on Structure Control of High Y ield B am busa oldham iBamboo Shoot Stands Ba sing on N /S

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