| 李思思1，覃德文1，刘亚萍1,2, 聂珍臻1.桂西北地区香椿人工林生长规律
及经济效益初步研究[J].广东农业科学,2014,41(3):56-59 |
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桂西北地区香椿人工林生长规律
及经济效益初步研究 |
| Test for reducing fertilizer in litchi orchardby using film covering |
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| DOI： |
| 中文关键词: 香椿 人工林 生长规律 经济效益分析 |
| 英文关键词: mulching Nuomici production vigor fertilization |
| 基金项目:国家社会科学基金（08XJY025） |
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| 中文摘要: |
| 以桂西北地区12 年生香椿人工林为调查对象，采用树干解析法对林分树高、胸径和单株材积进行生长
量分析，并结合动态和静态的研究方法对该林分进行经济效益初步分析。结果表明院香椿人工林在1~3 年期间，树高
连年生长量高达2.5 m，胸径平均生长量达到0.5 cm 左右、处于较高生长水平，该人工林于第12 年单株材积达到
0.07506 m3，全林纯利润为62 489 元，林投入产出比为1颐15.090。 |
| 英文摘要: |
| In order to reduce the amount of fertilization in litchi orchard, grope the new technologies of saving labor
and efficient cultivation, by comparison of the four years of mulching cultivation (no fertilizer) and the ordinary grass
cultivation (conventional fertilization), this study observed and measured the annual change of surface moisture in Nuomici
litchi orchards, compared the litchi tree vigor, production and the cost of the two treatments. The results showed that, in the
period of May 2009 to December 2011, the change of surface moisture of film mulching treatment was slow, the amplitude
was small, and the average moisture content of film mulching treatment was slightly lower than that of grass cultivation. In
2009, the fruit cracking rate of film mulching treatment was much lower than that of control, the yield was significantly
higher than that of control, the tree vigor in winter was also better than that of the control. In 2010, the fruit cracking rate
of film mulching treatment was fairly with the control, but the yield was still higher than that of the control, the tree vigor
in the winter and spring were better than those of control. Although there was no significant difference of fruit cracking rate
in 2011, but the production of film covering was still slightly higher than that of control. In 2011, the tree vigor of the two
groups had few differences. But in the spring and summer of 2012, the tree vigor of film mulching treatment was better than
that of control again. |
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