| 喀斯特地区不同等级石漠化人工生态恢复的土壤温度及水分效应——以贵州省花江峡谷为例 |
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| 引用本文： | 吴克华,孙永丽,容丽,龙明忠.喀斯特地区不同等级石漠化人工生态恢复的土壤温度及水分效应——以贵州省花江峡谷为例[J].贵州师范大学学报(自然科学版),2005,23(4):18-22. |
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| 作者姓名： | 吴克华 孙永丽 容丽 龙明忠 |
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| 作者单位： | 1. 贵州师范大学,地理与生物科学学院,贵州,贵阳,550001
2. 贵州师范大学,地理与生物科学学院,贵州,贵阳,550001;中国科学院,地球化学研究所环境地球化学国家重点实验室,贵州,贵阳,550002 |
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| 基金项目： | 国家“十五”重大科技攻关计划课题资助（2004BA606A-09-01）;贵州师范大学学生科研课题（2004～2005）.
致谢：论文得到熊康宁教授的悉心指导. |
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| 摘 要： | 根据石漠化等级程度及微地貌景观不同,选择12个固定样地作为研究对象,进行4次监测。结果表明,喀斯特峡谷区土壤温度与石漠化等级程度相关性不大,与植被覆盖度,特别是林下草被覆盖度具有很大相关性;随着治理时间增加,各等级石漠化土壤温度日变化趋于中度石漠化>轻度石漠化>强度石漠化>潜在石漠化的稳定大小关系。随治理时间增加,旱季土壤水分有逐渐提高的趋势,且年际同期变化幅度较大。研究不同等级石漠化人工生态恢复的土壤温度及水分有助于从土壤水热的角度来揭示石漠化恢复治理过程中的生态环境效应,为喀斯特地区石漠化防治提供科学依据。
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| 关 键 词： | 石漠化 生态恢复 土壤温度 土壤水分 |
| 文章编号： | 1004-5570（2005）04-0018-05 |
| 收稿时间： | 2005-04-25 |
| 修稿时间： | 2005年4月25日 |
The effects of soil temperature and moisture of artificial ecological restoration under different rocky desertification degrees in karst region-A case study of the Huajiang gorge area ,Guizhou |
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| WU Ke-hua,SUN Yong-li,RONG Li,LONG Ming-zhong.The effects of soil temperature and moisture of artificial ecological restoration under different rocky desertification degrees in karst region-A case study of the Huajiang gorge area ,Guizhou[J].Journal of Guizhou Normal University(Natural Sciences),2005,23(4):18-22. |
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| Authors: | WU Ke-hua SUN Yong-li RONG Li LONG Ming-zhong |
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| Institution: | 1. School of Geography and Biology, Guizhou Normal University,Guiyang,Guizhou 550001,China; 2. The National Key Laboratory of Environmental Geochemistry, Geochemistry Institute of Chinese Academy of Sciences, Guiyang, Guizhou 550002, China |
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| Abstract: | 12 fastness samples are chosen as study objects for 4-time monitoring.The results reveal that the soil temperature was not related to rocky desertification degrees,but has a close relation with vegetation coverage,especially the grass coverage.When the restoration time increases,the changes of the soil temperature in a day show that the temperature in moderate rocky desertification degree>the temperature in slight rocky desertification degree>the temperature in intense rocky desertification degree> the temperature in potential rocky desertification degree.When the restoration time increases,the soil moisture gradually improves and the changing range is large in the same season of different years.Study on soil temperature and moisture in different rocky desertification degrees can help to show the environment effects in the course of rocky desertification ecological restoration from the soil,water and heat so as to provide scientific proofs for prevention and control rocky desertification. |
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| Keywords: | rocky desertification ecological restoration soil temperature soil moisture |
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