青岛市森林与湿地负离子的空间分布特征

doi:10.11707/j.1001-7488.20100610

林业科学 ›› 2010, Vol. 46 ›› Issue (6): 65-70.doi: 10.11707/j.1001-7488.20100610

青岛市森林与湿地负离子的空间分布特征

闫秀婧

甘肃林业职业技术学院天水 741020

收稿日期:2009-09-04 修回日期:2010-04-17 出版日期:2010-06-25 发布日期:2010-06-25

Spatial Distribution of Anion Level in Forests and Wetland in Qingdao

Yan Xiujing

Gansu Forestry Technological CollegeTianshui 741020

Received:2009-09-04 Revised:2010-04-17 Online:2010-06-25 Published:2010-06-25

摘要/Abstract

摘要：

选择对森林和湿地负离子密度影响较大的几个生态因子，采用ALOS遥感影像、区划图、地形图，结合少量地面调查数据，借助于变异分析和3S技术的空间插值及叠加分析方法，对青岛市森林和湿地进行大尺度的定性、定量和可视化研究，得出如下结论： 1）植被生长初期负离子最大影响矢距为10 m，生长中期最大影响矢距为40 m。2）不同林种释放负离子顺序：生长初期，混交林>针叶林>阔叶林>湿地>经济林，生长中期，经济林>湿地>混交林>阔叶林>针叶林。3）生长初期一二级分布在市区、胶州和崂山区，平均密度1 651 个·cm-3 ，平均相对湿度35.38%，平均温度16.05 ℃，面积77.01 km2 ，其中林地面积40.85 km2 ，湿地面积0.37 km2 ，森林覆盖率53%。生长中期一二级分布在莱西南部、即墨、城阳、市区、崂山、胶州湾、胶州、平度、胶南地域，平均密度3 550 个·cm-3 ，平均相对湿度67.43%，平均温度26.77 ℃，面积5 687.58 km2 ，其中林地面积2 380.25 km2 ，湿地面积为472.07 km2 ，覆盖率42%，且负离子平均密度在3 550 个·cm3 以上的面积占青岛市面积的53%，且生长中期负离子密度是生长初期的4倍。4）经济林具有同样的生态价值。

关键词: 负离子空间分布, 变异分析, 空间插值, 叠加分析

Abstract:

The anion released by the forest and wetland has important ecological functions and is a significant evaluation index.The article focused on several eco-factors which have notable influence on the anion thickness.A qualitative,quantitative and visual study on the forest and wetland in Qingdao was for the first time conducted in large scale to guide the construction and ecological benefit assessment of anion bathing Forests.The study was based on the survey data,block plan and ALOS image,combining with the spatial statistics and 3S technique.The main results were as following:1) The longest influence external distance is 10 m at the early growth stage of vegetation and the longest influence external distance is 40 m at the middle growth stage of vegetation.2) At the early growth stage,the capacity of anion release from forests and wetlands varied as following,mixed forest>coniferous forest>broadleaf forest>wetlands>economic forest.At the middle growth stage,the released capacity of anion was:economic forest>wetlands>mixed forest>broadleaf forest>coniferous forest.3) The first and second grade scattered in the urban,Jiaozhou and Laoshan regions of the city at the early growth period.At that time,the mean concentration of anion was 1 651 unit·cm-3 ,average humidity 35.38% RH，mean temperature 16.05 ℃.The covered area was 77.01 km2 ，among which forests took 40.85 km2 ，wetland area was 0.37 km2 ,and forest coverage was 53%.The first and second grade scattered in the south Laixi,Jimo,Chengyang,urban，Jiaozhou gulf，Laoshan Pingdu and Jiaonan region of the city at the middle growth stage.Just as above,mean concentration of anion was 3 550 unit·cm-3 ,average humidity 67.43% RH，mean temperature 26.77℃.The area covered 5 687.58 km2 ，with forest 2 380.25 km2 ，wetland 472.07 km2 .The forest with the mean concentration of anion more than 3 550 unit·cm-3 accounted for 53% of land area of the Qingdao city,the forest coverage was 42%，the concentration of anion at middle growth period was 4 times of that at early stage.4) This study confirmed the ecological value of economic forest.

Key words: Anion spatial distribution, semi-variant analysis, spatial interpolation, overlay analysis

闫秀婧. 青岛市森林与湿地负离子的空间分布特征[J]. 林业科学, 2010, 46(6): 65-70.

Yan Xiujing. Spatial Distribution of Anion Level in Forests and Wetland in Qingdao[J]. Scientia Silvae Sinicae, 2010, 46(6): 65-70.

青岛市森林与湿地负离子的空间分布特征

Spatial Distribution of Anion Level in Forests and Wetland in Qingdao

PDF

可视化

摘要/Abstract

引用本文

使用本文

参考文献

相关文章 0

编辑推荐

Metrics

本文评价

作者中心

期刊获奖

引证指标

联系方式