[1]尹惠妍,张志伟*,苏卫静,等. 八一镇湿地公园林分空间结构分析[J].西北林学院学报,2019,34(3):149-153.[doi:10.3969/j.issn.1001-7461.2019.03.23]
　YIN Hui-yan,ZHANG Zhi-wei*,SU Wei-jing,et al. Spatial Structure of Stands of Bayi Township Wetland Park[J].JOURNAL OF NORTHWEST FORESTRY UNIVERSITY,2019,34(3):149-153.[doi:10.3969/j.issn.1001-7461.2019.03.23]
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 八一镇湿地公园林分空间结构分析()
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《西北林学院学报》[ISSN:1001-7461/CN:61-1202/S]

卷:
第34卷
期数:
2019年第3期
页码:
149-153
栏目:
出版日期:
2019-05-31

文章信息/Info

Title:
 Spatial Structure of Stands of Bayi Township Wetland Park
文章编号:
1001-7461(2019)03-0149-05
作者:
 尹惠妍; 张志伟*; 苏卫静; 杨光
 （西藏农牧学院 资源与环境学院，西藏 林芝 860000）
Author(s):
 YIN Hui-yan; ZHANG Zhi-wei*; SU Wei-jing; YANG Guang
 (Resources & Enviroment College,Tibet Agriculture & Animal Husbandry University,Nyingchi 860000,Tibet,China)
关键词:
 ; 八一镇湿地公园; 林分空间结构; 混交度; 大小比数
Keywords:
 ; Bayi Township Wetland Park;  stand spatial structure;  mixed degree;  size ratio
分类号:
S731.2
DOI:
10.3969/j.issn.1001-7461.2019.03.23
文献标志码:
A
摘要:
 以西藏林芝市八一镇湿地公园的高山松混交林为对象，从林分空间结构因子聚集指数、角尺度、混交度、大小比数等4个方面对湿地公园的林分空间结构进行研究。八一镇湿地公园森林群落类型主要为高山松针阔混交林，高山松针阔混交林中北京杨、藏川杨、旱柳、高山松等树种的组成很丰富，在研究标准地中不同树种的组成为3高3藏3北1旱。结果表明，八一镇湿地公园的结构较为合理,林分处于相对稳定状态，林分平均角尺度约为0.45，群落呈均匀分布格局；群落的混交度平均约0.412 5，所以呈中度混交状态。大小比数约0.36，有将近30%在该林分空间结构中处于优势地位；聚集指数约0.938 9，所以林木有随机分布趋势。通过适当增加树种多样性，制定相应的补植改造、抚育间伐等措施，可进一步改善湿地公园的林分结构。
Abstract:
 Taking Pinus densata mixed forest in the Wetland Park of Bayi Township,Nyingchi City,Tibet as the research object,this paper studied the forest spatial structure of the wetland park from four aspects:aggregation index,angle scale,mixing degree,and size ratio.The forest community was mainly P.densata theropencedrymion.There were abundant species in mixed P.densata and broad-leaved alpine pines,such as Populus szechuanica var.tibetica,Salix matsudana,Populus beijingensis and so on.In the standard study plot,the tree species composition of P.densata,P.szechuanica var.tibetica,P.beijingensis,and S.matsudana was 3∶3∶3∶1.The results showed that the average angle scale of the stand was about 0.45,and the community was uniformly distributed.The average mixing degree of the community was about 0.412 5,so it was moderately mixed with strong isolation.The size ratio was about 0.36,and nearly 30% of them were in dominant position in the spatial structure of the stand.The aggregation index was about 0.938 9,so there was no random distribution trend of the forest.

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备注/Memo

备注/Memo:
 收稿日期：2018-09-05修回日期：2018-10-02
基金项目：国家重点研发计划（2017YFC0506801）；林学卓越农林人才教育培训计划改革试点项目。
作者简介：尹惠妍，女，讲师，研究方向：林业3S技术应用。E-mail:huiyanyin@163.com
*通信作者：张志伟，男，讲师，研究方向：水土保持及荒漠环境演变。E-mail:aiwoweige@163.com
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