| 宁夏中部地区生态环境和生态系统受损评估研究 |
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| 引用本文： | 吕汝健,刘康.宁夏中部地区生态环境和生态系统受损评估研究[J].陕西师范大学学报,2004,32(2):106-111. |
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| 作者姓名： | 吕汝健 刘康 |
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| 作者单位： | [1]西北大学城市与资源学系,陕西西安710069 [2]吴忠职业技术学院经济管理学系,宁夏吴忠751100 |
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| 基金项目： | 国家自然科学基金资助项目(40271052) |
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| 摘 要： | 分析了宁夏中部地区的生态环境及生态系统受损问题．研究得出：在山区表现为植被锐减并导致草原退化、土地沙化和土壤侵蚀，而在川区则表现为引黄灌区的耕地盐碱化和环境污染．利用数学模式对不同生态系统进行受损评估表明：各地各类生态系统均不同程度受损，同时山区明显大于川区，自然系统明显大于半人工或人工系统。
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| 关 键 词： | 宁夏 中部地区 生态环境 生态系统 受损评估 生态恢复 植被 耕地 环境污染 |
| 文章编号： | 1672-4291(2004)02-0106-06 |
| 修稿时间： | 2004年1月5日 |
Main ecological environment and caustic evaluation of ecosystems in Mid-Ningxia |
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| Abstract: | In Mid-Ningxia area, the main ecological problems in the mountains are reducing of vegetation, degradation of grassland and soil erosion, while in the plain region the main ecological problems are saline alkali soil of farmland and environment pollution. The outcome of using the qualification way indicates that various ecosystems in different areas have been damaged in some way. To the caustic degree, the mountains overweight obviously the plain regions, the natural systems overweight the semi-human or human systems. By use different models and methods during the restoration and reconstruction of the caustic ecosystems. |
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| Keywords: | Mid-Ningxia ecological environment caustic ecosystem evaluation ecological restoration reconstruction |
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