| 湿地保护区耕地时空变化及调控对策--以三江平原同江市为例 |
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| 引用本文： | 侯伟,张树文,匡文慧.湿地保护区耕地时空变化及调控对策--以三江平原同江市为例[J].生态学杂志,2005,24(3):291-295. |
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| 作者姓名： | 侯伟 张树文 匡文慧 |
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| 作者单位： | 1. 中国科学院东北地理与农业生态研究所,长春,130012;中国科学院研究生院,北京,100039
2. 中国科学院东北地理与农业生态研究所,长春,130012 |
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| 基金项目： | 中国科学院知识创新工程重要方向资助项目(KZCX2-SW-320-1) |
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| 摘 要： | 以三江平原的同江市作为研究区域。从数量和景观结构两个方面研究典型湿地保护区的耕地时空变化，并对其驱动力进行了分析，提出了相应的耕地优化调控策略。结果表明，从1954～2000年研究区耕地面积增加了292258hm^2，总面积由原来的1．37％增加到49．58％，景观多样性指数由0．4723增加到0．7436。耕地已经成为该区域的主要土地利用方式，湿地面积萎缩导致耕地生态功能下降和生态环境质量下降已成为制约该区粮食安全的最重要因素。因此必须保护耕地并对其进行优化调控。
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| 关 键 词： | 耕地 优化调控 湿地 景观格局 |
| 文章编号： | 1000-4890(2005)03-0291-05 |
| 修稿时间： | 2003年3月27日 |
Spatial-temporal changes and optimal regulation of cultivated land in wetland nature reserves-A case study in Tongjiang City of Sanjiang Plain |
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| HOU Wei,ZHANG Shuwen,KUANG Wenhui.Spatial-temporal changes and optimal regulation of cultivated land in wetland nature reserves-A case study in Tongjiang City of Sanjiang Plain[J].Chinese Journal of Ecology,2005,24(3):291-295. |
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| Authors: | HOU Wei ZHANG Shuwen KUANG Wenhui |
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| Institution: | HOU Wei 1,2,ZHANG Shuwen 1,2,KUANG Wenhui1 |
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| Abstract: | Taking Tongjiang City of Sanjiang Plain as an example,spatial and temporal changes of cultivated land in typical wetland natural reserves were studied quantitatively,with driving forces analyzed and optimal regulation measures were put forward.The results indicated that the area of cultivated land has increased by 299,2258 hm2 from 1954 to 2000,and the proportion increased from 1.37% to 49.58%.Landscape diversity increased from 0.4723 to 0.7436.Cultivated land has become the main land use type in this region.The decrease of wetland area led to the declination of ecological function,which has become the most important factor threatening the grain safety.Cultivated lands should be protected and optimally regulated. |
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| Keywords: | cultivated land optimal regulation wetland landscape pattern |
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