| 盐池县荒漠草原人工植被重建对区域生态系统蒸散的影响 |
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| 引用本文： | 丹杨,杜灵通,王乐,马龙龙,孟晨,倪细炉. 盐池县荒漠草原人工植被重建对区域生态系统蒸散的影响[J]. 水土保持通报, 2019, 39(5): 8-15,39 |
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| 作者姓名： | 丹杨 杜灵通 王乐 马龙龙 孟晨 倪细炉 |
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| 作者单位： | 宁夏大学 西北土地退化与生态恢复省部共建国家重点实验室培育基地, 宁夏 银川 750021;宁夏大学 西北退化生态系统恢复与重建教育部重点实验室, 宁夏 银川 750021,宁夏大学 西北土地退化与生态恢复省部共建国家重点实验室培育基地, 宁夏 银川 750021;宁夏大学 西北退化生态系统恢复与重建教育部重点实验室, 宁夏 银川 750021,宁夏大学 西北土地退化与生态恢复省部共建国家重点实验室培育基地, 宁夏 银川 750021;宁夏大学 西北退化生态系统恢复与重建教育部重点实验室, 宁夏 银川 750021,宁夏大学 西北土地退化与生态恢复省部共建国家重点实验室培育基地, 宁夏 银川 750021;宁夏大学 西北退化生态系统恢复与重建教育部重点实验室, 宁夏 银川 750021,宁夏大学 西北土地退化与生态恢复省部共建国家重点实验室培育基地, 宁夏 银川 750021;宁夏大学 西北退化生态系统恢复与重建教育部重点实验室, 宁夏 银川 750021,宁夏大学 西北土地退化与生态恢复省部共建国家重点实验室培育基地, 宁夏 银川 750021;宁夏大学 西北退化生态系统恢复与重建教育部重点实验室, 宁夏 银川 750021 |
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| 基金项目： | 国家自然科学基金项目“荒漠草原多时空尺度蒸散演变特征及驱动机制研究：以宁夏盐池县为例”（41661003）；中国科学院“西部之光”人才培养引进计划项目（XAB2017AW01）；宁夏高等学校一流学科建设（生态学）项目（NXYLXK2017B06）；宁夏大学研究生创新项目（GIP2019044） |
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| 摘 要： | [目的]研究荒漠草原人工植被重建对区域蒸散的潜在影响,旨在为区域生态恢复重建提供理论依据。[方法]基于2001—2018年MODIS ET和NDVI产品,利用趋势分析、相关分析和分区统计等方法,以宁夏回族自治区盐池县为例,研究了荒漠草原人工植被重建对区域生态系统蒸散的影响。[结果]①2001—2018年盐池县NDVI整体呈上升趋势,增长幅度为0.006 0/a,98.55%的区域显著上升。②2001—2018年均蒸散量(ET)为266.73 mm,空间上表现为西南高于西北的特征,近18 a盐池县蒸散量显著上升(p0.01),增长幅度为6.27 mm/a,全县区域内ET均达到了显著上升趋势。③盐池县大面积人工植被重建后,ET显著升高,ET与NDVI呈显著正相关。ET与NDVI的变化趋势相关性为0.76(p0.01)。④在盐池荒漠草原地区,人工植被重建造成的植被结构变化导致生态系统蒸散量更大,消耗更多的水分,同时也使ET增长速率加快。[结论]盐池荒漠草原人工植被重建提高了区域NDVI值,也增强了生态系统的ET,水分消耗的加剧将影响生态系统的稳定性。
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| 关 键 词： | 荒漠草原 人工灌丛 植被变化 蒸散 |
| 收稿时间： | 2019-06-10 |
| 修稿时间： | 2019-07-08 |
Effects of Artificial Vegetation Reconstruction on Regional Ecosystem Evapotranspiration in Desert Steppe of Yanchi County |
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| Dan Yang,Du Lingtong,Wang Le,Ma Longlong,Meng Chen and Ni Xilu. Effects of Artificial Vegetation Reconstruction on Regional Ecosystem Evapotranspiration in Desert Steppe of Yanchi County[J]. Bulletin of Soil and Water Conservation, 2019, 39(5): 8-15,39 |
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| Authors: | Dan Yang Du Lingtong Wang Le Ma Longlong Meng Chen Ni Xilu |
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| Affiliation: | Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China;Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China,Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China;Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China,Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China;Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China,Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China;Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China,Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China;Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China and Breeding Base for State Key Laboratory of Land Degradation and Ecological Restoration in Northwest China, Ningxia University, Yinchuan, Ningxia 750021, China;Key Laboratory for Restoration and Reconstruction of Degraded Ecosystem in Northwest China of Ministry of Education, Ningxia University, Yinchuan, Ningxia 750021, China |
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| Abstract: | |
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| Keywords: | desert steppe artificial shrub vegetation transition evapotranspiration |
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