| 重庆喀斯特山地农业发展-生态响应评价 |
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| 引用本文： | 任伟,谢世友.重庆喀斯特山地农业发展-生态响应评价[J].湖北农业科学,2009,48(2). |
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| 作者姓名： | 任伟 谢世友 |
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| 作者单位： | 1. 西南大学地理科学学院,重庆,400715
2. 西南大学地理科学学院,重庆,400715;西南大学三峡库区生态环境教育部重点实验室,重庆,400715 |
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| 摘 要： | 重庆喀斯特山地属于典型生态脆弱区,宜耕地资源不足,土地退化严重,社会经济发展与生态环境承栽力、粗放的农业经营方式与资源短缺的矛盾突出.该文尝试将喀斯特山区农业发展及其影响下的生态响应作为一个系统,建立农业与生态发展协调性评价体系,利用因子分析法对重庆37个区县喀斯特山区进行横向对比和识别,并按综合得分进行分级.研究发现重庆喀斯特地区农业-生态发展协调度以较差和差为主,分别占总喀斯特面积的71.12%和12.17%,主要分布在渝东北和渝东南典型喀斯特区县,这种空间分异是自然基底背景、人为胁迫、经济科技因素共同作用的结果.
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| 关 键 词： | 农业发展-生态响应 评价体系 因子分析 重庆喀斯特山地 |
Application of Multivariate Statistical Analysis in Assessment of Agricultural Development-Ecological Reaction in Karst Mountain Areas of Chongqing |
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| REN Wei,XIE Shi-you.Application of Multivariate Statistical Analysis in Assessment of Agricultural Development-Ecological Reaction in Karst Mountain Areas of Chongqing[J].Hubei Agricultural Sciences,2009,48(2). |
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| Authors: | REN Wei XIE Shi-you |
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| Abstract: | The karst mountain areas of Chongqing are typical vulnerable eco-environments as the same as the other karst areas in Southwest China, where the serious land degradation and rocky desertification are especially remarkable environmental problems. In most of those areas,the level of social and economic developments has a poor coordination with bearing ability of ecological environments. This paper tries to establish an assessment system of agriculture-ecology coordinate degree in karst mountain areas with the... |
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| Keywords: | agricultural development-ecological reaction assessment system factor analysis karst mountain areas of Chongqing |
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