摘要
研究目的:建立土地整理景观生态评价方法,以江汉平原土地整理项目为例,研究土地整理的生态影响。研究方法:景观生态评价法和实证分析法。研究结果:(1)土地整理景观生态评价包括景观分类、数据处理和景观指数选择三方面内容;(2)整体景观尺度上,土地整理后景观变得更规则、结构更简单,但景观多样性下降;(3)景观类型尺度上,土地整理改变了耕地、坑塘、农村居民点、道路及沟渠等景观类型的特性,一方面可提高农田综合生产能力,另一方面,降低了坑塘等景观的生态作用。研究结论:土地整理景观生态评价方法是一种定量反映土地整理生态效应的方法,可为土地整理生态评价提供理论依据和决策支持。
The purpose of the paper is to set up a method for landscape evaluation of land consolidation and study the ecological effects of land consolidation by taking land reconsolidation project in Jianghan Plain as an example. Methods of landscape evaluation and case study were employed. The results show that： （1） landscape ecological evaluation of land consolidation include three aspects： landscape classification, data process and landscape index choice; （2）the whole landscape becomes more regular, simple and less diversified after consolidation; （3）as for the landscape type, land consolidation changes the characteristics of landscape types like cultivated land, roads and water channels, ponds as well as rural settlements. On one hand, the land consolidation can improve the comprehensive productivity of the farmland; on the another hand, it also reduces the ecological effects of the landscapes like water channels and ponds. It is concluded that the landscape ecological evaluation of land consolidation presents a quantitative method for ecological effects of land consolidation, and it can provide theoretical base and decision-making support for ecological evaluation of land consolidation.
出处
《中国土地科学》
CSSCI
北大核心
2008年第12期58-62,共5页
China Land Science
基金
国家自然科学基金资助项目(70603032)
关键词
土地整理
景观生态
评价
江汉平原
land consolidation
landscape ecology
evaluation
Jianghan Plain
