[1]顿耀龙,王军,白中科,等.松嫩平原西部土地整理区景观格局指数的粒度效应研究[J].水土保持研究,2014,21(05):66-71.
　DUN Yao-long,WANG Jun,BAI Zhong-ke,et al.Grain Effect of Landscape Pattern Index of Land Consolidation Area in the West of Songnen Plain[J].Research of Soil and Water Conservation,2014,21(05):66-71.
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松嫩平原西部土地整理区景观格局指数的粒度效应研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 21 期数: 2014年05期 页码: 66-71 栏目: 出版日期: 2014-10-28
Title:
Grain Effect of Landscape Pattern Index of Land Consolidation Area in the West of Songnen Plain
作者:
顿耀龙1,2, 王军2, 白中科1,2, 郭义强2
1. 中国地质大学(北京) 土地科学技术学院, 北京 100083;
2. 国土资源部 土地整治中心土地整治重点实验室, 北京 100035
Author(s):
DUN Yao-long1,2, WANG Jun2, BAI Zhong-ke1,2, GUO Yi-qiang2
1. School of Land Science and Technology, China University of Geosciences(Beijing), Beijing 100083, China;
2. Key Laboratory of Land Consolidation and Rehabilitation, Ministry of Land and Resources, Beijing 100035, China
关键词:
土地整理; 空间幅度; 景观格局指数; 粒度效应
Keywords:
land consolidation; spatial extent; landscape pattern index; grain effect
分类号:
F301.21,P901
摘要:
以松嫩平原西部大安市土地整理项目区为研究区，基于大安市土地整理前（2008年）1∶10 000土地利用现状图和土地整理后（2014年）项目区1∶10 000土地整理规划设计图，运用GIS技术绘制研究区土地整理景观类型图。运用Fragstats软件分别计算2种不同空间幅度土地整理区整理前后的景观格局指数，选取10个能综合反映土地整理景观格局特征的景观指数，在5～300 m之间的21个粒度范围内分析景观格局指数的粒度效应，并使用数学模型对景观格局指数随粒度增加的变化趋势进行曲线拟合。结果表明：景观格局指数随粒度增加呈现单调上升或下降、先上升后下降和无规律变化3种变化趋势；不同空间幅度下部分景观格局指数粒度效应的转折点存在差异，土地整理前后部分景观格局指数随粒度增加而变化的敏感性不同；斑块数量、斑块密度、最大斑块指数等8个指数能用数学模型很好的拟合，斑块面积方差和Shannon多样性指数拟合效果并不理想，斑块数量、斑块密度、最大斑块指数、斑块面积方差和景观形状指数整理后的拟合效果优于整理前；大安市土地整理项目区景观格局分析的适宜粒度为15～35 m。
Abstract:
Land consolidation project of Da’an City in the west of Songnen Plain was selected as the study area. Based on 1∶10 000 current land use map before land consolidation (2008) and 1∶10 000 land consolidation planning map after land consolidation (2014), GIS technology was used to make the land consolidation landscape type map and the landscape pattern index was calculated by using the software of Fragstats. 10 landscape pattern indices which are good to describe land consolidation landscape pattern characteristics were selected to analyze their grain effect in the range of 5～300 meter grain size under two different spatial extents. And mathematical model was used to fit the change trend of landscape pattern indices. The results indicated that the landscape pattern index showed a monotonic increase or decrease, decline after the first increase and irregular change of 3 kinds of trend along with the increase of grain. There are differences with turning point on different spatial extents of part of landscape pattern indices, part of landscape pattern indices have different sensitivity along with grain size increase before and after land consolidation. Most of indices can be very well fitted with mathematical model. Part of indices such as patch number, patch density, largest patch index, patch area variance and landscape shape index were fitted better after land consolidation. The suitable grain of landscape pattern analysis is 15～35 meters in land consolidation project area of Da’an City.

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备注/Memo

收稿日期:2014-01-15;改回日期:2014-03-12。
基金项目:国家自然科学基金（41171152）
作者简介:顿耀龙(1988-),男,湖北荆州人,硕士研究生,主要研究方向为土地整理与复垦、土地可持续利用。E-mail:dunyaolong2012@163.com
通讯作者:王军(1970-),男,河南新乡人,博士,研究员,主要研究方向为景观生态学、土地可持续利用与土地整理。E-mail:wangjun@lcrc.org.cn

更新日期/Last Update: 1900-01-01