| 青藏高原柴达木盆地东部地区的 土壤侵蚀现状调查 |
| 曹雪1,3; 焦菊英1,2,3; 李建军2; 祁泓锟2; 王湘2
|
| 2021
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发表期刊 | 水土保持通报
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卷号 | 41期号:5页码:1-8 |
摘要 | [目的]开展柴达木盆地的土壤侵蚀现状调查研究,旨在为柴达木盆地土壤侵蚀防治和青藏高原
环境治理提供科学依据。[方法]考察组分别于2019 , 2020 , 2021年7月3次赴柴达木盆地,沿德令哈市、
格尔木市、都兰县一带,对选取的 77 个样地内不同土地利用类型植被、土壤、侵蚀特征和水土保持措施进
行了调查和分析。[结果]柴达木盆地以风蚀为主,在作物生长季,耕地没有明显的风蚀现象,说明作物的
水土保持效果显著。不同利用类型土地的平均土壤风蚀速率大小顺序为:沙地 > 耕地 > 撂荒地 > 灌草地;
土壤侵蚀沟多出现于山前洪积扇和山坡上的灌草地,洪积扇上的沟蚀较为严重;植物沙堆分布广泛,种类
多样,沙堆体积与植物冠幅相关性强,植物拦沙作用明显。同时,该区还存在部分耕地因灌溉系统管理不
善而造成土壤侵蚀和地下水位上升大;种植枸杞的沙田管理不到位,水土保持措施不完善,水土保持投入
不足等问题。[结论]柴达木盆地土壤侵蚀类型复杂多样,需要在加强水土保持工作的同时,完善灌溉系统
的维护,加强土壤盐渍化治理和沙田保育,切实保障柴达木盆地的土地资源可持续性。 |
其他摘要 | [ Objective ] The current status of soil erosion in the Eastern Qaidam Basin was investigated in
order to provide a scientific basis for the prevention and control of soil erosion in this region , and for effective
environmental management of Qinghai - Tibet Plateau. [ Methods ] The investigations were conducted in July
2019 , 2020 , 2021in the Eastern Qaidam Basin , along Delingha , Golmud City , and Dulan County.77investigation
plots were selected to investigate vegetation , soil , characteristics of soil erosion , and soil and water conservationmeasures. [ Results ] Qaidam Basin was dominated by wind erosion.During the crop growing season , there
was no obvious wind erosion phenomenon on cultivated land , indicating that the soil and water conservation
of crops was remarkable.The average soil wind erosion rates of different land use types followed the order of
sandy land> cultivated land> abandoned land> shrub land.Gully
erosion was mostly found on the
grassland of piedmont alluvial fans and hillsides.Gully erosion on alluvial fans was more serious than on
hillsides.Nebkhases were widely distributed and exhibited a diverse mix of species.Nebkhas volume had a
strong correlation with plant canopy
, and their sand blocking
effect was obvious.The main existing problems
were soil erosion and rising groundwater level caused by over irrigation of cultivated land , inadequate
management of sandy land for planting wolfberry , imperfect soil and water conservation measures
, and
insufficient investment in soil and water conservation. [ Conclusion ] The types of soil erosion in Qaidam Basin
are complex and diverse.It is recommended that soil and water conservation practices be strengthened ,
irrigation system maintenance be improved , and soil salinization management and sandfield conservation be
strengthened.Thus will effectively ensure the sustainability
of land resources in Qaidam Basin. |
关键词 | 柴达木盆地
土地利用
土壤侵蚀
生态保护
土壤次生盐渍化
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收录类别 | 中文核心期刊要目总览
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语种 | 中文
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文献类型 | 期刊论文
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条目标识符 | sbir.nwafu.edu.cn/handle/361005/10401
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专题 | 水保所知识产出(1956---)
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作者单位 | 1.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 2.西北农林科技大学 水土保持研究所 3.中国科学院大学
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推荐引用方式 GB/T 7714 |
曹雪,焦菊英,李建军,等. 青藏高原柴达木盆地东部地区的 土壤侵蚀现状调查[J]. 水土保持通报,2021,41(5):1-8.
|
APA |
曹雪,焦菊英,李建军,祁泓锟,&王湘.(2021).青藏高原柴达木盆地东部地区的 土壤侵蚀现状调查.水土保持通报,41(5),1-8.
|
MLA |
曹雪,et al."青藏高原柴达木盆地东部地区的 土壤侵蚀现状调查".水土保持通报 41.5(2021):1-8.
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文件名:
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青藏高原柴达木盆地东部地区的土壤侵蚀现状调查_曹雪.pdf
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