基于RWEQ模型的典型沙区风蚀治理成效研究

以通辽市科尔沁左翼后旗(科左后旗)为研究区, 通过修正的风蚀方程(revised wind erosion equation, RWEQ)计算科左后旗2010—2016年的风蚀强度时空变化, 评价通辽市开展科尔沁沙地"双千万亩"综合治理工程的风沙治理效果.研究结果表明: 1) 2010—2016年, 科左后旗风蚀强度呈现明显下降的趋势, 总风蚀量从2010年的3893.87万t下降到2016年的1883.56万t, 降幅为51.63%; 2) 工程实施区内平均风蚀强度高于全旗平均风蚀强度, 且相对风蚀系数在2016年明显下降, 说明项目建设成效显著, 有效地削弱了风蚀较高的...

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Published in北京大学学报（自然科学版） Vol. 55; no. 2; pp. 342 - 350
Main Authors 张寒冰, 高阳, 崔艳智
Format Journal Article
LanguageChinese
Published 中国农业大学土地科学与技术学院, 北京 100193 20.03.2019
国土资源部农用地质量与监控重点实验室, 北京 100193%中日友好环境保护中心,北京,100029
Subjects
风蚀
"Double Ten Million Mu" comprehensive management project
修正的风蚀方程(RWEQ)
RWEQ
"双千万亩"综合治理工程
Horqin Left Back Banner
科尔沁左翼后旗
wind erosion
Online AccessGet full text
ISSN0479-8023
DOI10.13209/j.0479-8023.2019.010

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Abstract 以通辽市科尔沁左翼后旗(科左后旗)为研究区, 通过修正的风蚀方程(revised wind erosion equation, RWEQ)计算科左后旗2010—2016年的风蚀强度时空变化, 评价通辽市开展科尔沁沙地"双千万亩"综合治理工程的风沙治理效果.研究结果表明: 1) 2010—2016年, 科左后旗风蚀强度呈现明显下降的趋势, 总风蚀量从2010年的3893.87万t下降到2016年的1883.56万t, 降幅为51.63%; 2) 工程实施区内平均风蚀强度高于全旗平均风蚀强度, 且相对风蚀系数在2016年明显下降, 说明项目建设成效显著, 有效地削弱了风蚀较高的项目区内的侵蚀; 3) 项目区建设具有一定的域外效应, 范围在3 km左右, 项目实施后, 不同距离缓冲区的相对风蚀系数均明显下降, 且越靠近项目区下降越明显, 从而减小了缓冲区之间的差距.
AbstractList 以通辽市科尔沁左翼后旗(科左后旗)为研究区, 通过修正的风蚀方程(revised wind erosion equation, RWEQ)计算科左后旗2010—2016年的风蚀强度时空变化, 评价通辽市开展科尔沁沙地"双千万亩"综合治理工程的风沙治理效果.研究结果表明: 1) 2010—2016年, 科左后旗风蚀强度呈现明显下降的趋势, 总风蚀量从2010年的3893.87万t下降到2016年的1883.56万t, 降幅为51.63%; 2) 工程实施区内平均风蚀强度高于全旗平均风蚀强度, 且相对风蚀系数在2016年明显下降, 说明项目建设成效显著, 有效地削弱了风蚀较高的项目区内的侵蚀; 3) 项目区建设具有一定的域外效应, 范围在3 km左右, 项目实施后, 不同距离缓冲区的相对风蚀系数均明显下降, 且越靠近项目区下降越明显, 从而减小了缓冲区之间的差距.
Abstract_FL The revised wind erosion equation (RWEQ) is used to calculate the spatial and temporal changes of the wind erosion in Horqin Left Back Banner from 2010 to 2016, to evaluate the implementation effect of "Double Ten Million Mu" comprehensive management project in Horqin sandy land carried out by Tongliao Government. The results show that the wind erosion decreases significantly in Horqin Left Back Banner from 2010 to 2016, and the total wind erosion decreases from 38.93 million tons in 2010 to 18.83 million tons in 2016, down by 51.63%. The average wind erosion in the project implementation area is higher than the average wind erosion in Horqin Left Back Banner, which shows that the project construction achieves remarkable achievements and reduces the erosion effectively in the project area with high wind erosion. Project area construction has certain extraterritorial effect, and the positive effect of the project construction works not only within the project area, but also in the surrounding areas. The effective range is about 3 km far from the project area. After two years of project implementation, the relative wind erosion coefficient of different distance buffers decreases, and the closer to the project area the buffer is, the more positive effects it behaves.
Author 高阳
崔艳智
张寒冰
AuthorAffiliation 中国农业大学土地科学与技术学院, 北京 100193;国土资源部农用地质量与监控重点实验室, 北京 100193%中日友好环境保护中心,北京,100029
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Author_FL GAO Yang
ZHANG Hanbing
CUI Yanzhi
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DocumentTitle_FL Evaluation the Effects of Wind Erosion Control Projects in Typical Sandy Area Based on RWEQ Model
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Issue 2
Keywords 风蚀
"Double Ten Million Mu" comprehensive management project
修正的风蚀方程(RWEQ)
RWEQ
"双千万亩"综合治理工程
Horqin Left Back Banner
科尔沁左翼后旗
wind erosion
Language Chinese
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PublicationTitle 北京大学学报（自然科学版）
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PublicationYear 2019
Publisher 中国农业大学土地科学与技术学院, 北京 100193
国土资源部农用地质量与监控重点实验室, 北京 100193%中日友好环境保护中心,北京,100029
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Snippet 以通辽市科尔沁左翼后旗(科左后旗)为研究区, 通过修正的风蚀方程(revised wind erosion equation, RWEQ)计算科左后旗2010—2016年的风蚀强度时空变化, 评价通辽市开展科尔...
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