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林业资源管理 ›› 2016, Vol. 0 ›› Issue (5): 71-76.doi: 10.13466/j.cnki.lyzygl.2016.05.013

• 科学研究 • 上一篇    下一篇

基于角尺度和各变量大小比数的毛乌素沙地南缘樟子松人工林林分空间结构分析

邓继峰1,2, 丁国栋3, 邓娇娇1,2, 赵国平4, 魏亚伟1,2, 邓舸1, 周永斌1,2, 殷有1,2   

  1. 1.沈阳农业大学 林学院,沈阳 110866;
    2.辽宁辽河平原森林生态系统定位研究站,辽宁 昌图 112500;
    3.北京林业大学 水土保持学院,北京 100083;
    4.陕西省治沙研究所,陕西 榆林 7190004
  • 收稿日期:2016-07-27 修回日期:2016-10-20 出版日期:2016-10-28 发布日期:2020-11-02
  • 通讯作者: 殷有(1971-),男,辽宁沈阳人,副教授,硕导,主要从事森林生态、森林经理的教学和科研工作。Email:yyzyb@163.com
  • 作者简介:邓继峰 (1984-),男,辽宁沈阳人,讲师,博士,主要从事森林生态、森林经理、土壤侵蚀的教学和科研工作。Email:dengjifeng1984@hotmal.com
  • 基金资助:
    林业公益性行业科研专项(201404303-05);国家自然科学基金项目(41450007);林业公益性行业科研专项(201304216)

Spatial Structure Analysis of Mongolian Pine Plantation Based on Uniform Angle Index and Neighborhood Comparison in Southern Mu Us Desert

DENG Jifeng1,2, DING Guodong3, DENG Jiaojiao1,2, ZHAO Guoping4, WEI Yawei1,2, DENG Ge1, ZHOU Yongbin1,2, YIN You1,2   

  1. 1. Forestry College,Shenyang Agricultural University,Liaoning Shenyang 110866,China;
    2. Liaohe Plain Forest Ecosystem Research Station,Liaoning,Changtu 112500,China;
    3. Soil and Water Conservation College,Beijing Forestry University,Beijing 100083,China;
    4. Shaanxi Sand Fixation Research Institute,Yulin 7190004,China
  • Received:2016-07-27 Revised:2016-10-20 Online:2016-10-28 Published:2020-11-02

摘要: 利用角尺度和大小比数结构参数,对陕西省榆林市珍稀沙生植物保护基地内不同梯度密度下的樟子松人工林林分空间结构进行了分析。结果表明:1) 从角尺度取值来看,各样地林木个体分布以均匀分布为主,且核心区林木数量随林分密度的增加而减少;2) 以分枝角为度量的大小比数反映各样地林木的大小分化程度,可信度较高。因此,通过分枝角的评价指标来评估樟子松单木的竞争优势及造林后防风固沙效果是可行的。研究结果可为探索毛乌素沙地樟子松建群种的植物固沙模式选择及管护治理工作提供理论支撑。

关键词: 樟子松, 人工林, 角尺度, 大小比数

Abstract: In our research,uniform angle index and neighborhood comparison were applied to different densities of Mongolian pine plantation to analyze their stand structure characteristics.The results showed that (1) Evenness distribution was the main spatial characteristics for the most of stands,and number of trees in the core area decreases with the density increasing.(2) The neighborhood comparison measured by branch angle was a visibly higher,thus,it is possible to evaluate the ranch angle index to achieve its predominance status among individuals competition and to enhance its effect on desertification.The conclusions of this study can provide important support for afforestation and forest management in this region.

Key words: Pinus sylvesiris var.mongolica, artificial forest, uniform angle index, neighborhood comparison

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