和田绿洲农田林网杨树更新年龄的研究  

Study on Poplar Regeneration Age of Farmland Shelterbelt Network in Hetian Catchment

作　　者：朱玉伟[1] 桑巴叶 陈启民[1] 刘康[1] 武卫疆 褚奋飞 

机构地区：[1]新疆林业科学院造林治沙研究所,乌鲁木齐830063

出　　处：《新疆农业科学》2012年第9期1650-1656,共7页Xinjiang Agricultural Sciences

基　　金：国家科技支撑计划课题(2009BAC54B01)

摘　　要：【目的】调查和田绿洲农田林网生长情况和更新采伐现状,确定其合理的更新采伐年龄,为确定农田林网杨树采伐更新提供理论依据。【方法】根据和田地区和田县和墨玉县不同年龄新疆杨生长材料,采用林木生长数学预测模型中常用的Logistic方法对树高和胸径建立生长模型,确定农田林网的防护林成熟、数量成熟、工艺成熟和经济成熟时期。【结果】根据农田林网的数量成熟、工艺成熟、防护成熟和经济成熟进行综合分析,确定和田地区农田林网杨树的合理更新年龄为23～28 a。【结论】确定了农田林网杨树更新年龄,为农田林网的科学经营、更新和永续利用提供了理论依据。[ Objective ] The purpose of this project was to determine regeneration age and provide theoretical basis for the poplar regeneration of Hetian farmland shelterbelt based on our investigation of Hetian farmland shelterbelt growing states and cutting situation. [ Method ] According to the growth data of different age Xinjiang poplars in Hetian County and Moyu County, we choose the Logistic method which is a common tree growth mathematical prediction model as the growth model of tree high and tree diameter, and determine the maturity ages of largest volume, technology, protection and economy of shelter forest belt for farmland. [ Result ] According to the comprehensive analysis of the maturity ages of largest volume, technology, protection and economy of shelter forest belt for farmland, we determined that the reasonable poplar regeneration age is 23 to 28 years. [ Conclusion ] We determine the poplar regeneration age of farmland shelterbelt was determined and theoretical basis for the scientific management and update, and sustainable utilization of farmland shelterbelt was provided.

关 键 词：绿洲农田林网 杨树 更新年龄 生长模型 

分 类 号：S75[农业科学—森林经理学]