| 吉林西部农业生态环境问题及对策 |
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| 引用本文： | 章光新,杨建锋,刘强.吉林西部农业生态环境问题及对策[J].生态环境,2004,13(2):290-292. |
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| 作者姓名： | 章光新 杨建锋 刘强 |
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| 作者单位： | 中国科学院东北地理与农业生态研究所,吉林,长春,130012 |
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| 基金项目： | 中国科学院知识创新工程重大项目(KZCX1-SW-19-2-01)，吉林省科技发展引导项目(20030221) |
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| 摘 要： | 在自然因素和人为因素的影响下,吉林西部农业生态环境问题日益突出,土地退化严重,直接表现为“三化”(即土地盐碱化、草原退化和土地沙化)。盐碱地面积已增至160.69104 hm2,与50年代相比,盐碱地面积增加52.79104 hm2,平均每年增加1.35104 hm2,年递增率1.3%;建国初期,嫩平原吉林省西部草地面积252.9104 hm2,到了1999年,草地面积仅为122.3104 hm2,年递减率约2.6%,而且草原的质量也在下降。目前,沙地面积68.6104 hm2,土地沙化局面已基本控制。文章系统分析农业生态环境恶化的原因和驱动机制,提出综合防治对策和措施。
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| 关 键 词： | 农业生态环境 土地盐碱化 草原退化 土地沙化 吉林西部 |
| 文章编号： | 1672-2175(2004)02-0290-03 |
| 修稿时间： | 2003年10月27 |
The problems and countermeasures of agro-environment of the west of Jilin province |
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| ZHANG Guang-xin,YANG Jian-feng,LIU Qiang Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Changchun.The problems and countermeasures of agro-environment of the west of Jilin province[J].Ecology and Environmnet,2004,13(2):290-292. |
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| Authors: | ZHANG Guang-xin YANG Jian-feng LIU Qiang Northeast Institute of Geography and Agricultural Ecology Chinese Academy of Sciences Changchun |
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| Institution: | ZHANG Guang-xin,YANG Jian-feng,LIU Qiang Northeast Institute of Geography and Agricultural Ecology,Chinese Academy of Sciences,Changchun 130012 |
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| Abstract: | Agro-environment of the west of Jilin province is deteriorating under the impact of natural and human factors, which is directly presented by land saline-alkalization, grassland degeneration and land desertification. At present, the area of saline-alkalization land is up to 1.6069106 hm2, it increases by 1.35104 hm2 per year in comparison with that of 1950s; The area of grassland is 1.223106 hm2, and the annual descending rate is about 2.6%; but land desertification has been controlled effectively. In this paper, the causes and driving mechanisms of Agro- environment deterioration are systemically analyzed, and comprehensive control countermeasures are put forward, in order to promote the agricultural sustainable development. |
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| Keywords: | agro-environment land saline-alkalization grassland degeneration land desertification the west of Jilin province |
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