›› 1981, Vol. 17 ›› Issue (1): 8-19.
• 论文及研究报告 • 上一篇 下一篇
宋兆民 陈建业 杨立文 赵宗哲 卫林 江爱良
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Song Zhao-min,Chen Jian-ye,Yang Li-wen,Zhao zong-zhe,Wei lin,Jiang Ailiang
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Abstract: The effect of improving the eco-environmental factors of a crop field by a network of shelterbelts is investigated and compared with that of a single shelterbelt. The effect of promoting the growing, development and yield of crop (wheat) was analysed also. The result of analysis is given as follows: (1) The effect of a network of shelterbelt is 10% higher than that of a single belt. (2) The variation of wind direction casts no significant influence on the improving effect of a net with a shape of approximate square. (3) The region of shading effect of a shelterbelt is confined within a distance of 0.5 height of the belt. (4) An effect of lengthening the periods of the nutritive growing and the accumulation of meterial of grain was investigated. (5) The yield of crop was increased by about 5.5%.
宋兆民 陈建业 杨立文 赵宗哲 卫林 江爱良. 河北省深县农田林网防护效应的研究[J]. , 1981, 17(1): 8-19.
Song Zhao-min;Chen Jian-ye;Yang Li-wen;Zhao zong-zhe;Wei lin;Jiang Ailiang. STUDIES ON THE EFFECTS OF FARMLAND SHELTERBELT NETWORK IN SHENHSIEN COUNTY OF HOPEI PROVINCE[J]. , 1981, 17(1): 8-19.
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