干旱区生态环境知识资源中心(Arid): 基于RWEQ 模型的内蒙古高原土壤风蚀研究

Arid

	基于RWEQ 模型的内蒙古高原土壤风蚀研究
其他题名	Wind Erosion in Inner Mongolia Plateau Using the Revised Wind Erosion Equation
	迟文峰 1; 白文科 2; 刘正佳 3; 党晓宏 4; 匡文慧 3
来源期刊	生态环境学报
ISSN	1674-5906
出版年	2018
卷号	27 期号:6 页码:1024-1033
中文摘要	土壤风蚀是评价气候变化与人类活动对生态系统服务功能影响的重要指标。应用RWEQ模型定量反演了20世纪90年代以来内蒙古高原土壤风蚀模数,揭示其时空变化特征及其影响因素。结果表明:(1)自20世纪90年代以来,土壤风蚀模数呈先升后降趋势,2000年以后下降趋势显著,下降速率为0.87 t·hm~(-2)·a~(-1);(2)2000年以来,研究区87.85%的区域土壤风蚀模数呈下降态势,中度以上土壤风蚀发生面积减少4.73*10~4 km~2,西部区域土壤风蚀得到有效抑制,土壤风蚀模数从86.92 t·hm~(-2)·a~(-1)下降至59.46 t·hm~(-2)·a~(-1),中部土壤风蚀量明显减少,土壤风蚀模数降低了14.68 t·hm~(-2)·a~(-1),东部空间变化不明显;(3)极端天气沙尘暴发生次数减少和年平均风速降低与土壤风蚀下降显著相关(P<0.001),退耕还林灌草等土地利用、覆盖变化(LUCC)对降低土壤风蚀模数,提高区域防风固沙功能具有关键作用。研究成果对促进地区荒漠化防治和区域可持续发展具有一定的科学意义。
英文摘要	Soil wind erosion is an important index to evaluate the effect of climate change and human activities on ecosystem service function. In this study, the RWEQ model was used to quantitatively reverse the wind erosion modulus of Inner Mongolia Plateau since the 1990s, for revealing its temporal and spatial variation characteristics and influencing factors. The results showed that: (1) The trends for soil wind erosion modulus change were increased first since the 1990s, and then decreased significantly at a rate of 0.87 t·hm~(-2)·a~(-1) since 2000; (2) 87.85% of the soil wind erosion modulus in those areas were downswing, and the moderate or more serious area was reduced by 47 300 km~2, of which, the soil wind erosion of western region was controlled effectively, with the soil erosion modulus decreasing from 86.92 t·hm~(-2)·a~(-1) to 59.46 t·hm~(-2)·a~(-1), and that for the central region was decreased significantly, with the soil erosion modulus decreasing by 14.68 t·hm~(-2)·a~(-1), while no significantly change was found on that of the eastern region; And (3) the effects of meteorological factors, land use/cover change (LUCC) and artificial disturbance on soil wind erosion intensity change were analyzed in this study, and we described the relationship between wind speed, sandstorm and soil wind erosion (P<0.001), and revealed that the land use/cover change (such as returning farmland to forest, shrub and grassland) played a key role in reducing soil wind erosion modulus and enhancing regional windbreak and sand-fixation function. The above research results are of great scientific significance for promoting desertification prevention and control and regional sustainable development in those regions.
中文关键词	土壤风蚀 ; RWEQ 模型 ; 土地利用/覆被变化 ; 影响因素 ; 内蒙古高原
英文关键词	soil wind erosion RWEQ LUCC influencing factors Inner Mongoliam Plateau
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:6283172
来源机构	内蒙古农业大学 ; 中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/238077
作者单位	1.内蒙古财经大学资源与环境经济学院;;中国科学院地理科学与资源研究所, ;;, 呼和浩特;;, 内蒙古;;北京 010017;;100101, 中国; 2.西华师范大学生态研究院, 南充, 四川 637002, 中国; 3.中国科学院地理科学与资源研究所, 北京 100101, 中国; 4.内蒙古农业大学沙漠治理学院, 呼和浩特, 内蒙古 010011, 中国
推荐引用方式 GB/T 7714	迟文峰,白文科,刘正佳,等. 基于RWEQ 模型的内蒙古高原土壤风蚀研究[J]. 内蒙古农业大学, 中国科学院地理科学与资源研究所,2018,27(6):1024-1033.
APA	迟文峰,白文科,刘正佳,党晓宏,&匡文慧.(2018).基于RWEQ 模型的内蒙古高原土壤风蚀研究.生态环境学报,27(6),1024-1033.
MLA	迟文峰,et al."基于RWEQ 模型的内蒙古高原土壤风蚀研究".生态环境学报 27.6(2018):1024-1033.