我国绿洲防护林冬季相防风效应的估算

doi:10.11707/j.1001-7488.20140813

Abstract

Abstract:

In order to better assess the wind protection effect of oasis protection forest in winter and spring in northern China, we evaluated the effect of farmland shelterbelts in northern China on the forest ground wind in winter and spring. The relative wind speed of shelterbelts stickers' layer was used as the objective function. Based on the dynamic equilibrium, the approximate correspondence relationship between the stock volume index (per unit area of farmland owned by the stumpage) and wind protection effect of the farmland shelterbelts in winter was used to evaluate the effect of farmland shelterbelts in northern China on the forest ground wind in winter and spring. The results showed that the overall stock volume was insufficient in northern China oasis protection forest, and the wind protection effect was poor in winter and spring. Occasionally, a very good windbreak effect was observed in some locals, but the situation was not universal. Moreover, we found that the incremental benefit of wind protection was inversely proportional to the stock volume index. Bare arable land and the areas with smaller stock volume had bigger incremental space. Pruning operated in smaller stock volume index areas had more significant influence on wind protection effect. Thus, it is not necessary to keep collaterals by sacrificing the economic value of wood in those areas with bigger stock volume index. For those areas with relatively big stock volume index, the growing volume is not necessary bigger than the harvest volume and the storage volume.

Key words: farmland shelterbelts, relative wind speed, power speed, farmland area, stock volume

CLC Number:

S727.2

Wang Zhigang, Xin Zhiming, Zhao Yingming, Ma Xuexian, Chen Feng, Wu La, Xiao Caihong. Evaluation of Wind Protection Effect of Oasis Shelterbelts in China[J]. Scientia Silvae Sinicae, 2014, 50(8): 90-96.

References

曹新孙.1983.农田防护林学.北京: 中国林业出版社, 107, 110-111, 168-174.
(Cao X S. 1983. Scicence of farmland shelterbelt. Beijing: China Forestry Publishing House, 107, 110-111, 168-174. [in Chinese] )
高尚武, 王志刚.1990.大范围绿化工程对环境质量作用的研究.林业科学研究, 3(增刊1):22-33.
梁宝君. 2007.三北农田防护林建设与更新改造.北京: 中国林业出版社, 4, 27, 47, 53-54.
(Liang B J. 2007. Establishment and replacement of farmland shelterbelts in the northwest, north and northeast of China. Beijing: China Forestry Publishing House, 4, 27, 47, 53-54. [in Chinese] )
刘艳萍, 高永. 2003.防护林降解近地表沙降尘机理的研究.水土保持学报, 17(1):162-165.
(Liu Y P, Gao Y. 2003. Tunnel experiment on mechanism of shelterbelt reducing sand and dust near ground surface. Journal of Soil Water Conservation, 17(1):162-165. [in Chinese] )
宋阳, 刘连友, 严平, 等, 2005.中国北方5 种下垫面对沙尘暴的影响研究.水土保持学报, 19(6):15-18.
(Song Y, Liu L Y, Yan P, et al. 2005. Influence of five types underlying surface on sand-dust storm in northern China. Journal of Soil Water Conservation, 19(6):15-18. [in Chinese] )
汪季, 高永, 刘艳萍, 等. 2005, 防护林降解近地表沙尘的风洞模拟研究.干旱区地理, (1): 88-92.
(Wang J, Gao Y, Liu Y P, et al. 2005. Wind tunnel simulation for revealing the mechanism of shelterbelts in reducing sand-dust in air near ground surface. Arid Land Geography, (1): 88-92. [in Chinese] )
王志刚, 杨东慧.1998.林带冬季相立木疏透度及其设计方法的研究.中国沙漠, 18(1): 87-90.
(Wang Z G, Yang D H. 1998. Studies on standing tree transmissivity and structure desing method of shelter belt with winter facies. Journal of Desert Research, 18(1): 87-90. [in Chinese] )
王志刚, 任昱.2012.林带冬季相结构参数及透风系数的算法推导.林业科学研究, 25(1): 36-41.
(Wang Z G, Ren Y. 2012. Algorithm derivation of winter facies wind protection of shelterbelts structural parameters and wind permeability coefficient. Forest Research, 25(1): 36-41. [in Chinese] )
王志刚. 2013.林带冬季相结构因子对透风系数影响规律分析.干旱区资源与环境, 27(4): 193-197.
(Wang Z G, Liu F, Xin Z M, et al. 2013. Impact of winter shelterbelt structure factors upon the ventilated coefficient. Journal of Arid Land Resources and Environment, 25(1): 36-41. [in Chinese] )
王志刚, 赵英鸣, 司芳芳, 等.2014.论绿洲防护林立木蓄积量指数及其应用.林业科学, 50(7):113-120.
(Wang Z G, Zhao Y M, Si F F, et al. 2014. Discuss in stock volume index and application of the oasis protection forest system. Scientia Silvae Sinicae, 50(7):113-120. [in Chinese] )
赵明. 2011.民勤沙漠-绿洲低空沙尘暴结构特征研究.中国科学: 地球科学, 41(2): 234-242.
赵英铭, 辛智鸣, 王志刚, 等.2013.绿洲林网区上层动力速度与防风效应估算.林业科学, 49(10):93-99.
(Zhao Y M, Xin Z M, Wang Z G, et al. 2013. Estimates of the wind protection effect and the relative dynamic speed above the canopy of a large oasis area. Scientia Silvae Sinicae, 49(10):93-99. [in Chinese] )
朱金兆. 2010.农田防护林学.北京: 中国林业出版社, 62-99, 146-162.
(Zhu J Z. 2010. Scicence of farmland shelterbelt. Beijing: China Forestry Publishing House, 62-99, 146-162. [in Chinese] )
朱廷曜.1993.农牧防护林网区域性防风效应及评价模型.林业科学, 29(6): 509-514.
(Zhu T Y, Zhou G S. 1993. Regional wind protection effect and evaluation model of agriculture and animale husbandry windbreak networks. Scientia Silvae Sinicae, 29(6): 509-514. [in Chinese] )
朱廷曜. 2001.农田防护林生态工程学.北京: 中国林业出版社, 85-98.
(Zhu T Y. 2001. Theory of eco-engineering of farmland protective plantation. Beijing: China Forestry Publishing House, 85-98. [in Chinese] )
Simiu E, Scanlan R H.1996.Wind Effects on Structures;Fundamentals and Applications to Design. John Wiley & Sons, INC, 44-61.

[1]	Wang Zhigang, Zhao Yingming, Si Fangfang, Chen Chuansong, Ma Xuexian, Chen Feng. Discuss in Stock Volume Index and Application of the Oasis Protection Forest System [J]. Scientia Silvae Sinicae, 2014, 50(7): 113-120.
[2]	Zhao Yingming, Xin Zhiming, Wang Zhigang, Ma Xuexian, Wu Liwei. Estimates of the Wind Protection Effect and the Relative Dynamic Speed above the Canopy of A Large Oasis Area [J]. Scientia Silvae Sinicae, 2013, 49(10): 93-99.

Evaluation of Wind Protection Effect of Oasis Shelterbelts in China

PDF (PC)

Knowledge

Abstract

Cite this article

share this article

References

Related Articles 2

Recommended Articles

Metrics

Comments