丰佳,潘明九,何玺泓,王文龙,余智芳,顾晨临,陈晓刚

• 1:国网浙江省电力有限公司
• 2:国网浙江省电力有限公司经济技术研究院
• 3:西北农林科技大学水土保持研究所
• 4:中国科学院水利部水土保持研究所黄土高原土壤侵蚀与旱地农业国家重点实验室

摘要(Abstract)：

山丘区架空输电线路工程建设过程会对地表产生较大强度的扰动,导致严重的土壤侵蚀,亟待对不同区域内工程产生土壤侵蚀特征差异进行研究,并建立区域差异化的土壤侵蚀防治措施体系。分别对西北黄土丘陵区典型架空输电线路工程14项、南方红壤丘陵区典型架空输电线路工程10项及青藏高原山地丘陵区典型架空输电线路工程10项,总计34项线路工程于研究区域内标段产生的土壤侵蚀进行资料分析与实地监测相结合的研究,阐明架空输电线路工程区土壤侵蚀类型、侵蚀强度以及防治措施等差异。结果表明:(1)无论是工程整体产生的平均土壤侵蚀模数还是工程各侵蚀单元分别产生的土壤侵蚀模数,施工期内平均土壤侵蚀模数大小均依次为西北黄土丘陵区>南方红壤丘陵区>青藏高原山丘区,自然恢复期内则依次为西北黄土丘陵区>青藏高原山丘区>南方红壤丘陵区;(2)同类型山丘区内输电线路工程中,不同土壤侵蚀单元内产生的土壤侵蚀模数在施工期及自然恢复期大小均依次为塔基区>施工道路>牵张场>跨越场;(3)施工期内各类山丘区中年均土壤侵蚀量大小均依次为西北黄土丘陵区(52.88 t·km~(-1)·a~(-1))>南方红壤丘陵区(33.31 t·km~(-1)·a~(-1))>青藏高原山丘区(22.58 t·km~(-1)·a~(-1)),自然恢复期内则依次为西北黄土丘陵区(31.14 t·km~(-1)·a~(-1))>青藏高原山丘区(11.81 t·km~(-1)·a~(-1))>南方红壤丘陵区(6.39 t·km~(-1)·a~(-1)),其大小排序与输电线路工程整体于各时期产生土壤侵蚀模数大小排序一致;(4)依据不同侵蚀单元内施工环节特点、土壤侵蚀特点以及措施综合布设、分区防治管理要求,总结形成山丘区架空输电线路工程典型土壤侵蚀防治措施体系。研究成果可为建立全国范围内山丘区架空输电线路工程土壤侵蚀防治措施及施工技术体系提供一定的理论依据。

关键词(KeyWords)： 山丘区;架空输电线路工程;土壤侵蚀特征;差异研究;降雨;植被覆盖度;青藏高原区

Abstract:

Keywords:

基金项目(Foundation): 国家电网公司总部科技项目“山丘区架空输电线路工程水土保持设计施工关键技术研究”(8100-202019156A-0-0-00)

作者(Author): 丰佳,潘明九,何玺泓,王文龙,余智芳,顾晨临,陈晓刚

DOI: 10.13928/j.cnki.wrahe.2021.10.021

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