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护田林带树种配置评价与优化模式选择(PDF)

《南京林业大学学报(自然科学版)》[ISSN:1000-2006/CN:32-1161/S]

Issue:
1991年01期
Page:
46-53
Column:
研究论文
publishdate:
1900-01-01

Article Info:/Info

Title:
EVALUATION OF TREE SPECIES DEPASITIAN IN SHELTER BELT TO PROTEDT FARMLAND ANDITG GELECTION OF OPTIMIZED MODEL
Article ID:
1000-2006(1991)01-0046-08
Author(s):
Kang Lixin Zhang Jiling
Forestry Research Institution of Jiangsu Province
Keywords:
Shelter belt for protecting farmland Deposition model in tree species Technical economic benefit
Classification number :
-
DOI:
10.3969/j.jssn.1000-2006.1991.01.009
Document Code:
A
Abstract:
With the theories and methods on technical economics and the grey stategy of multitarget, from the quantitative view, the evaluation and optimized model selection in 8 tree species deposition model for shelter belt in dry land cropping district, Fengxie, Jiangsu province, were carried out. The results are as follows: ① In dry laud district in Huang Huai plain, the deposition model in 7 tree species for sheoter belt used P x. euramericana as a principal tree species, mixed P x euramericana with a locust, and paulownia as its margin. Its technical economic benefits were better than that of shelter belt composed of populus xiaozuanica and planting crops and managing multiple-purpose for forestry. ② Optimized model selected in tree species deposition, its main forest belt was to plant a line of paulownia in each side, to mix a poplar with a locust in another plant in the midside. The narrow forest belt made of tree species regarded a poplar as main production purpose. The auxiliary forest belt was made up with a poplar in rapid growth, like a shade forest belt. ③ While the main productive factor was input in the existing forest belt, the district short of funds and the labor force in surplus, cutting down the consumption in the embodied labor with higher live labor value still has its practical significance.

References

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Last Update: 1900-01-01