| 祁连山南坡不同植被类型土壤粒度特征 |
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| 引用本文： | 袁杰,曹生奎,曹广超,赵青林,刁二龙,陈真,陈治荣. 祁连山南坡不同植被类型土壤粒度特征[J]. 水土保持通报, 2019, 39(2): 76-82 |
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| 作者姓名： | 袁杰 曹生奎 曹广超 赵青林 刁二龙 陈真 陈治荣 |
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| 作者单位： | 青海师范大学青海省自然地理与环境过程重点实验室;青海师范大学研究生院;青藏高原地表过程与生态保育教育部重点实验室 |
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| 基金项目： | 国家重点研发计划项目子专题“西北内陆区保水节水技术集成与应用”（2017YFC0404304）；国家自然科学基金项目（41361005） |
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| 摘 要： | [目的]对祁连山南坡不同植被类型土壤粒度特征进行分析,为区域土壤资源可持续利用和生态环境保护提供科学依据。[方法]对祁连山南坡不同植被类型下土壤进行标准化土壤样品采集,利用Mastersizer 2000型激光粒度仪测定75件样品,通过福克和沃德公式计算粒度参数,最后进行单因素方差分析。[结果]①青海云杉、祁连圆柏、高寒草甸为粉砂—黏粒级(63μm),混合灌丛和高山草地为砂粒级(63μm),粒级组成上林地质地最细,高寒草甸次之,混合灌丛和高山草地土壤质地粗颗粒成分较多,有退化趋势;②平均粒径(M_z)表现为:青海云杉(6.15Ф)祁连圆柏(5.81Ф)高寒草甸(5.22Ф)混合灌丛(5.07Ф)高山草地(5.04Ф);分选系数(σ)表现为:高山草地(2.65)高寒草甸(2.45)混合灌丛(2.33)青海云杉(2.17)祁连圆柏(2.11);偏度(SK)高寒草甸(0.19)高山草地(0.12)混合灌丛(0.035)青海云杉(0.032)祁连圆柏(-0.05);峰度(K_G)表现为:青海云杉(0.968)混合灌丛(0.966)祁连圆柏(0.929)高寒草甸(0.887)高山草地(0.867);③各植被类型频率曲线存在异同,其中林地和灌丛为近对称单峰态,高寒草甸和高山草地粒度频率曲线呈多峰态,说明草地类型受外界因素干扰较大,物源混杂。[结论]在自然环境影响和人类活动强度大的情况下,高寒草甸和高山草地粒径将进一步粗化,荒漠化风险程度最大,是该区相对来说亟需保育的植被类型。
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| 关 键 词： | 祁连山南坡 土壤粒度 不同植被类型 |
| 收稿时间： | 2018-09-10 |
| 修稿时间： | 2018-10-19 |
Soil Particle Size Characteristics Under Different Vegetation Types on Southern Slope of Qilian Mountains |
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| Yuan Jie,Cao Shengkui,Cao Guangchao,Zhao Qinglin,Diao Erlong,Chen Zhen and Chen Zhirong. Soil Particle Size Characteristics Under Different Vegetation Types on Southern Slope of Qilian Mountains[J]. Bulletin of Soil and Water Conservation, 2019, 39(2): 76-82 |
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| Authors: | Yuan Jie Cao Shengkui Cao Guangchao Zhao Qinglin Diao Erlong Chen Zhen Chen Zhirong |
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| Affiliation: | Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xi''ning, Qinghai 810008, China;Graduate School of Qinghai Normal University, Xi''ning, Qinghai 810000, China;MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xi''ning, Qinghai 810008, China,Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xi''ning, Qinghai 810008, China;Graduate School of Qinghai Normal University, Xi''ning, Qinghai 810000, China;MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xi''ning, Qinghai 810008, China,Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xi''ning, Qinghai 810008, China;Graduate School of Qinghai Normal University, Xi''ning, Qinghai 810000, China;MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xi''ning, Qinghai 810008, China,Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xi''ning, Qinghai 810008, China;Graduate School of Qinghai Normal University, Xi''ning, Qinghai 810000, China;MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xi''ning, Qinghai 810008, China,Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xi''ning, Qinghai 810008, China;Graduate School of Qinghai Normal University, Xi''ning, Qinghai 810000, China;MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xi''ning, Qinghai 810008, China,Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xi''ning, Qinghai 810008, China;Graduate School of Qinghai Normal University, Xi''ning, Qinghai 810000, China;MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xi''ning, Qinghai 810008, China and Key Laboratory of Qinghai Province Physical Geography and Environmental Process, Qinghai Normal University, Xi''ning, Qinghai 810008, China;Graduate School of Qinghai Normal University, Xi''ning, Qinghai 810000, China;MOE Key Laboratory of Tibetan Plateau Land Surface Processes and Ecological Conservation, Xi''ning, Qinghai 810008, China |
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| Abstract: | |
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| Keywords: | southern slope of Qilian Mountain soil particle size different vegetation types |
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