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恢复演替中草地斑块动态及尺度转换分析
引用本文:辛晓平,徐斌,单保庆,李建东,杨允菲.恢复演替中草地斑块动态及尺度转换分析[J].生态学报,2000,20(4):587-593.
作者姓名:辛晓平  徐斌  单保庆  李建东  杨允菲
作者单位:1. 中国农科院资源区划所,北京,100081
2. 中国科学院生态环境研究中心环境水化学国家重点实验室,北京,100085
3. 东北师范大学草地研究所,长春,130022
基金项目:国家自然科学基金资助项目!(No.39899370),国家基金重点资助项目!(39730110)
摘    要:研究了9a草地恢复油潜系列中斑块边界形状和斑块面积分布动态,并进行了凡度转换分析。獐茅斑块的边界分维数和斑块化指数最高,羊草斑块的较低,碱蓬斑块的斑块化指数略小于羊草斑块,边界分维数大于洋草斑块。共他类型斑块的两种指数基本上介于獐茅斑块之间,斑块化指数的年限变动滞后于斑块边界分维数,斑块边发维数在整个试验的尺度范围内符合同一自相似规律,斑块的面积分布格局在不同的尺度上有不同的自相似规律。

关 键 词:斑块边界  斑块面积分布  分形指数  尺度转换  草地
收稿时间:1999/6/21 0:00:00
修稿时间:1999/12/6 0:00:00

Patch dynamics and scale transition analysis of grassland in restoration succession
XIN Xiaoping,XU Bin,SHAN Baoqing,LI Jiandong and YANG Yunfei.Patch dynamics and scale transition analysis of grassland in restoration succession[J].Acta Ecologica Sinica,2000,20(4):587-593.
Authors:XIN Xiaoping  XU Bin  SHAN Baoqing  LI Jiandong and YANG Yunfei
Institution:Institute of Natural Resources and Regional Planning.CAAS; Beijing; China
Abstract:Patch boundary shape and patch size distribution in 9 year restoration succession was studied scale transition points were determined using fractal method.Both fractal dimension of patch boundary and patchiness exponent of Aeluropus littoralis were the highest,and that of Aneurolepidium chinense were lower.Patchiness exponent of Suaeda glauca was a little lower than that of Aneurolepidium chinense and fractal dimension of patch boundary was higher.Dynamics of patch size distribution lag behind patch boundary shape.Fractal dimension of patch boundary has no scale transition at all scale in this study and patch size distribution shows scale transition which indicates different fractal characteristics at different scales.
Keywords:patch boundary  patch size distribution  fractal exponent  scale transition
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