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요약정보
不同水土保持措施对东北黑土区坡耕地产流产沙的影响
Resource Type
Academic Journal
Authors
苑佰飞
;
崔海锋
;
李猛
;
王彩凤
;
吴朋
;
姜保帅
;
滕美瑶
Source
中国水土保持 / Soil and Water Conservation in China
. (2):61-65
Subject
水土保持措施
坡耕地
径流量
土壤侵蚀量
东北黑土区
Language
Chinese
ISSN
1000-0941
Online Access
Find it @ DONGA
초록
坡耕地水土流失问题制约了东北黑土区农业可持续发展.通过在吉林省梅河口市吉兴小流域径流观测场布设裸地小区(对照)和自然恢复、植物埂、灌木埂、水平坑、横垄耕作、顺垄耕作6 个水土保持措施试验小区,分析在相同的坡度和自然降雨条件下,不同水土保持措施对东北黑土区坡耕地产流和产沙的影响.结果表明:各试验小区的径流量和土壤侵蚀量与降雨量均呈显著的正相关关系;与裸地小区相比,水平坑和横垄耕作措施的减流减沙效益较高,其次是自然恢复、灌木埂、植物埂措施,顺垄耕作措施的减流减沙效益最低,且土壤侵蚀量高于该区域平均土壤侵蚀量.建议在东北黑土区推广应用减流减沙效益最佳的水平坑和横垄耕作措施,同时合理配套种植有经济作物的植物埂和灌木埂,不建议采用单一的顺垄耕作措施.
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