Density dynamics with model adjustments for stump sprouts of <em>Hippophae rhamnoides</em> subsp. <em>sinensis</em>

LI Tian-jiang; LI Yun-fei; TIAN Tao; HE Bin; XU De-bing; GAO Jia-rong; LI Gen-qian

doi:10.11833/j.issn.2095-0756.2011.05.005

Volume 28 Issue 5

Oct. 2011

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Article Navigation > Journal of Zhejiang A&F University > 2011 > 28(5): 713-719

LI Tian-jiang, LI Yun-fei, TIAN Tao, HE Bin, XU De-bing, GAO Jia-rong, LI Gen-qian. Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis[J]. Journal of Zhejiang A&F University, 2011, 28(5): 713-719. doi: 10.11833/j.issn.2095-0756.2011.05.005

Citation:

LI Tian-jiang, LI Yun-fei, TIAN Tao, HE Bin, XU De-bing, GAO Jia-rong, LI Gen-qian. Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis[J]. Journal of Zhejiang A&F University, 2011, 28(5): 713-719. doi: 10.11833/j.issn.2095-0756.2011.05.005

Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis

doi: 10.11833/j.issn.2095-0756.2011.05.005

LI Tian-jiang^1,2,
LI Yun-fei¹,
TIAN Tao^３,
HE Bin^２,
XU De-bing⁴,
GAO Jia-rong¹,
LI Gen-qian^{1,２
,}

1.
Forestry College，Beijing Forestry University，Beijing 100083，China;
2.
Foresty College，Southwest Forestry University， Kunming 650224，Yunnan，China;
3.
Xi’an Nursery of Shaanxi Highway Bureau，Xi’an 710068，Shaanxi，China;
4.
Yunnan Academy of Forestry，Kunming 650204，Yunnan，China

More Information

Corresponding author: LI Gen-qian
Publish Date: 2011-10-20

Abstract

Stumping is one of the important methods for tending management and restoration of population stability. In order to understand the adjustment regulation of density change which could provide scientific basis for population restoration and management of stump sprout，the density dynamic of stump sprout population was studied. Based on measurement of all individuals in a population of Hippophae rhamnoides subsp. sinensis at different successional stages，model adjustments of density dynamics and stump sprouts in the Mu Us sandy lands of north central China were analyzed using a spatial series substituted for a time series and plots arranged by age. In a model with variables of individual number，ramet morphology，and biomass adjustments were made by changing sprout and surviral rates of regenerated plants，ramet number，and plant density. Results showed that （1） population density had three stages increasing，decreasing and steady in turn；（2） morphological changes of regenerated plant included an increased population base diameter a decreased ratio of complex axis and an increased ratio of single axis；（3） biomass distribution constantly changed with sprout and survival adjustments. As the population base diameter increased，the dead branch biomass ratio increased and leaf biomass ratio decreased. Meanwhile，the ratios of clonal organs and mean root all decreased. Since growth and survivability could improve with a further stump sprouting，individual number and ramet morphology could be improved by adjusting the sprout and survival rate of clonal plants and ramets to help realize a rational utilization of the resource and maintenance of the population.［Ch，3 fig. 1 tab. 22 ref.］
- forest ecology,
- stump sprout,
- density dynamics,
- clonal growth pattern,
- biomass distribution,
- adjustment rule,
- Hippophae rhamnoides subsp. sinensis

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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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Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis

1. Forestry College，Beijing Forestry University，Beijing 100083，China;

2. Foresty College，Southwest Forestry University， Kunming 650224，Yunnan，China;

3. Xi’an Nursery of Shaanxi Highway Bureau，Xi’an 710068，Shaanxi，China;

4. Yunnan Academy of Forestry，Kunming 650204，Yunnan，China

Corresponding author: LI Gen-qian

Publish Date: 2011-10-20

Key words:

Abstract: Stumping is one of the important methods for tending management and restoration of population stability. In order to understand the adjustment regulation of density change which could provide scientific basis for population restoration and management of stump sprout，the density dynamic of stump sprout population was studied. Based on measurement of all individuals in a population of Hippophae rhamnoides subsp. sinensis at different successional stages，model adjustments of density dynamics and stump sprouts in the Mu Us sandy lands of north central China were analyzed using a spatial series substituted for a time series and plots arranged by age. In a model with variables of individual number，ramet morphology，and biomass adjustments were made by changing sprout and surviral rates of regenerated plants，ramet number，and plant density. Results showed that （1） population density had three stages increasing，decreasing and steady in turn；（2） morphological changes of regenerated plant included an increased population base diameter a decreased ratio of complex axis and an increased ratio of single axis；（3） biomass distribution constantly changed with sprout and survival adjustments. As the population base diameter increased，the dead branch biomass ratio increased and leaf biomass ratio decreased. Meanwhile，the ratios of clonal organs and mean root all decreased. Since growth and survivability could improve with a further stump sprouting，individual number and ramet morphology could be improved by adjusting the sprout and survival rate of clonal plants and ramets to help realize a rational utilization of the resource and maintenance of the population.［Ch，3 fig. 1 tab. 22 ref.］

Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis

doi: 10.11833/j.issn.2095-0756.2011.05.005

Abstract

References

Proportional views

通讯作者: 陈斌, bchen63@163.com

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Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis

doi: 10.11833/j.issn.2095-0756.2011.05.005

Corresponding author: LI Gen-qian

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Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis

doi: 10.11833/j.issn.2095-0756.2011.05.005

Abstract

Relative Article

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Proportional views

通讯作者: 陈斌, bchen63@163.com

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Density dynamics with model adjustments for stump sprouts of Hippophae rhamnoides subsp. sinensis

doi: 10.11833/j.issn.2095-0756.2011.05.005

Corresponding author: LI Gen-qian

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