基于防护保证率的农田防护林林带间距调控

农田防护林林带间距的设置关系到防护林防护效益和农田单位经济效益的权衡。该文以新疆南疆枣树防护林为例,引用水文学中防护保证率的概念和方法,以枣树受风害危害的概率特征为基础,兼顾防护林防风生态效益和经济效益最大为目标,建模分析和野外试验相结合,研究了农田防护林林带间距调控方法。结果表明：1）运用防护保证率的方法能够实现对农田防护林防风生态效益与经济效益权衡的优化;2）枣树防护林的防护保证率在95%,林带间距为132.1 m左右时,单位经济价值达到最优,高出常规防护林间距经济产量6.2%;3）林带疏透度为0.34大于疏透度为0.49的防护效益。该研究可为农田防护林林带间距定量调控提供参考。...

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Bibliographic Details
Published in农业工程学报 Vol. 32; no. 4; pp. 185 - 190
Main Author 朱乐奎 刘彤 郑波 孙钦明 韩志全 刘尊驰 张礼春
Format Journal Article
LanguageChinese
Published 石河子大学生命科学学院,石河子,832003%石河子大学理学院,石河子,832003 2016
Subjects
优化
作物
南疆
危害风速
枣树
模型
经济效益
防护保证率
models
枣树
damage wind speed
南疆
Southern Xinjiang
模型
作物
economic benefits
危害风速
经济效益
防护保证率
crops
optimization
优化
protection-insurance rate
jujube
Online AccessGet full text
ISSN1002-6819
DOI10.11975/j.issn.1002-6819.2016.04.026

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Summary:农田防护林林带间距的设置关系到防护林防护效益和农田单位经济效益的权衡。该文以新疆南疆枣树防护林为例,引用水文学中防护保证率的概念和方法,以枣树受风害危害的概率特征为基础,兼顾防护林防风生态效益和经济效益最大为目标,建模分析和野外试验相结合,研究了农田防护林林带间距调控方法。结果表明：1）运用防护保证率的方法能够实现对农田防护林防风生态效益与经济效益权衡的优化;2）枣树防护林的防护保证率在95%,林带间距为132.1 m左右时,单位经济价值达到最优,高出常规防护林间距经济产量6.2%;3）林带疏透度为0.34大于疏透度为0.49的防护效益。该研究可为农田防护林林带间距定量调控提供参考。
Bibliography:11-2047/S
Setting appropriate farmland shelterbelt intervals is critical for ensuring an appropriate trade-off between shelterbelt protection benefits and unit economic benefits. If the shelterbelt interval is very large, the protection benefits will be reduced, and consequently the crops will suffer serious damage; however, if the shelterbelt interval is very small, more farmland area will be occupied, resulting in crop failure. With the development of precision and intensive agriculture, a new agricultural concept has been developed in which the ecological benefits that shelterbelts provide through the prevention of wind damage can be optimized against the economic benefits. In this study, we chose the jujube （Ziziphus jujuba） shelterbelts in southern Xinjiang, China as an example to develop a model for calculating a protection guarantee rate and farmland economic benefits, using the concept and method of the protection guarantee rate from hydrology. The protection guarantee rate was used to describe the num
ISSN:1002-6819
DOI:10.11975/j.issn.1002-6819.2016.04.026