Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae.

Yuan Ronglan; Tang Cai; Yu Qilong

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Volume 13 Issue 4

May 2019

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Article Navigation > Journal of Zhejiang A&F University > 1996 > 13(4): 489-496

Yuan Ronglan, Tang Cai, Yu Qilong. Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae.[J]. Journal of Zhejiang A&F University, 1996, 13(4): 489-496.

Citation:

Yuan Ronglan, Tang Cai, Yu Qilong. Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae.[J]. Journal of Zhejiang A&F University, 1996, 13(4): 489-496.

Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae.

1.
Zhejiang Forestry College,Lin’an311300,PRC

Received Date: 1995-11-28
Publish Date: 1996-12-30

Abstract

The spatial distribution Pattern of Petrova cristata larvae was tested by means of frequency distribution and distribution index.Sequential sampling and the confidence of tree different sampling methods were analyzed and evaluated.The results showed that the spatial distribution Pattern of Petrova cristata larvae was generally nagative binomial distribution in the young growth of Pinus taiwansist.The Parallel sampling,diagonal line sampling and chessobard sampling methods were all fitted to sampling surveys of the larvae,and the chessboard sampling was much better than others.
- Petrova cristata,
- ecological distribution,
- sampling

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通讯作者: 陈斌, bchen63@163.com

1.
沈阳化工大学材料科学与工程学院沈阳 110142

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Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae.

1. Zhejiang Forestry College,Lin’an311300,PRC

Received Date: 1995-11-28
Publish Date: 1996-12-30

Key words:

Abstract: The spatial distribution Pattern of Petrova cristata larvae was tested by means of frequency distribution and distribution index.Sequential sampling and the confidence of tree different sampling methods were analyzed and evaluated.The results showed that the spatial distribution Pattern of Petrova cristata larvae was generally nagative binomial distribution in the young growth of Pinus taiwansist.The Parallel sampling,diagonal line sampling and chessobard sampling methods were all fitted to sampling surveys of the larvae,and the chessboard sampling was much better than others.

Yuan Ronglan, Tang Cai, Yu Qilong. Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae.[J]. Journal of Zhejiang A&F University, 1996, 13(4): 489-496.

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Yuan Ronglan, Tang Cai, Yu Qilong. Spatial Distribution Pattern and Sampling Methods of Petrova cristata Larvae.[J]. Journal of Zhejiang A&F University, 1996, 13(4): 489-496.

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