摘要
基于2009年望云山森林公园林地更新数据,利用ArcGIS 10.2以地类为分类单元,将小班数据进行融合,选取适宜分析粒度利用Fragstats 4.2对研究区林地景观格局指数进行计算,并利用Programita的O-ring统计方法对主要林地景观多尺度空间分布特征及其关联性进行分析。结果表明:在15 m分析粒度下,纯林地景观面积占绝对的优势,与特规灌木林地、未成林造林地景观构成了森林公园主要的林地景观类型;森林公园林地景观类型丰富但受少数优势景观支配,SHDI值为1.050 6,SHEI值为0.456 3。3种主要林地景观的空间分布格局随尺度变化的趋势相似,均先呈聚集分布,经过轻微的随机分布后呈现均匀分布,之后趋于随机分布,但是各林地景观对尺度变化的响应有所不同;各林地景观类型均在中小尺度上呈正(负)关联性,在大尺度上无关联性。
Dissovled subcompartment data based on the renewal data of Wangyunshan Forest Park in 2009, used land type classification with ArcGIS 10.2. Next, we used Fragstats 4.2 to calculate the forest landscape index under the suitable grain size, used the O-ring statistic in Programita to analyze the spatial distribution pattern and the association. The results showed that under the grain size of 15m, the area of pure forest land accounted for the absolute advantage, and constitute the main forest land landscape types with the bush forest land of national special provisions and young afforested land. Landscape types of forest land are rich but dominated by a small number of landscape types. The value of SHDI is 1.050 6, and SHEI is 0.456 3. Also, landscape types of forest land were significantly clumped at fine scale, and distribute uniformly with the increase of scale and tend to be in random distribution finally, but the response of forest land landscape to scale change is different. There were positive （negative） correlations among the main 3 forest landscape types at fine scales, and no significant correlations at coarse scales.
作者
任煜堃
唐代生
文敏
Ren Yukun Tang Daisheng Wen Min(Central South University of Forestry ＆ Teehnology, Changsha Hunan 410004, China)
出处
《西南林业大学学报（自然科学）》
CAS
北大核心
2017年第4期150-155,共6页
Journal of Southwest Forestry University：Natural Sciences
基金
国家自然科学基金项目(3157030678)资助
关键词
核密度分析
林地
景观格局
多尺度特征
森林公园
kernel density estimation, forest land, landscape pattern, multi-scale feature, forest park
作者简介
第1作者：任煜堃（1992-），女，硕士生。研究方向：林业信息化。Email：332479916@qq.com。
通信作者：唐代生（1963-），男，博士，副教授。研究方向：森林资源经营管理，林业信息化。Email：305093451qq．com。
