[1]张磊,王嘉学,刘保强,等.喀斯特山原红壤退化过程中土壤表层团聚体变化规律[J].山地学报,2015,(01):8.
 ZHANG Lei,WANG Jiaxue,LIU Baoqiang,et al.The Variation of Surface Soil Aggregates in the Degradation Process of the Mountain Red Earth Zone Karst[J].Mountain Research,2015,(01):8.
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喀斯特山原红壤退化过程中土壤表层团聚体变化规律()
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《山地学报》[ISSN:1008-2186/CN:51-1516]

卷:
期数:
2015年01期
页码:
8
栏目:
山地研究
出版日期:
2015-02-01

文章信息/Info

Title:
The Variation of Surface Soil Aggregates in the Degradation Process of the Mountain Red Earth Zone Karst
作者:
张磊;王嘉学;刘保强;肖梦景;程艳芳;许路艳;
云南师范大学旅游与地理科学学院;
Author(s):
ZHANG LeiWANG JiaxueLIU BaoqiangXIAO MengjingCHENG YanfangXU Luyan
School of Tourism and Geographical Science,Yunnan Normal University,Kunming 650500,China
关键词:
喀斯特山原红壤团聚体影响因素
Keywords:
karst mountain red earth aggregate characteristics factors
分类号:
P642.25,P934
文献标志码:
A
摘要:
山原红壤是古气候影响下残存于高原面的古红土,近年来退化严重。为认识山原红壤的退化机理及效应,以滇东喀斯特典型山原红壤发育地带为研究对象,分析了4种不同覆被条件下0~20 cm土壤表层团聚体的特征。结果表明:从草地→灌丛→松林→红裸土,土壤>0.25 mm水稳性团聚体含量(WSAC)和平均重量直径(MWD)逐渐减少,分形维数(FD)显著增大;团聚体破坏率(PAD0.25)则表现为松林<草地<灌丛<红裸土。山原红壤从有植被到无植被(红裸土)退化过程中,表层土壤的团聚体稳定性和其他物理性质劣化,抗水蚀能力变弱,有机质含量减少;草地、灌丛、松林之间的土壤团聚体特征变化不明显,尚不能准确反映植被间的退化...
Abstract:
Mountain red earth is the foehn Paleosol influenced by the ancient climate and has been degenerated seriously in recent years. In order to understand the mechanism of degradation and the effects of mountain red earth,and the typical development zone of the mountain red earth in Karst eastern Yunnan of China is chosen to analyze the characteristics of the 0~20 cm soil surface aggregates under the four different covers in red earth zone. The results indicate that > 0.25 mm water stable aggregate content (WSAC) and mean weight diameter (MWD) are gradually reduced, but the fractal dimension (FD) increased significantly in process of grassland→shrub lands→pine wood→red bare soil. The percentage aggregate destruction (PAD) demonstrated: the law of pine wood

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备注/Memo

备注/Memo:
收稿日期(Received date):2014-05-15;改回日期(Accepted):2014-06-14。
基金项目(Foundation item):国家自然科学基金(41061021);云南省科技计划(2012CA024)[Supported by the National Natural Science Foundation of China(41061021),and the Plan for Science & Technology of Yunnan Province(2012CA024).]
作者简介(Biography):张磊(1989-),男,陕西商洛人,硕士研究生,主要从事区域环境与土壤恢复研究。[Zhang Lei( 1989-),male,born in shangluo,shanxi province,master candidate,research in Regional environmental and soil remediation.]E-mail:646595296@qq.com *
通信作者(Corresponding author):王嘉学(1971-),男,云南富源人,博士,教授,主要从事景观过程与控制研究。[Wang Jiaxue(1971-),male,born in Fuyuan,yunnan province,doctor,professor.the major fields are Landscape processes and controls.]E-mail:wjxynsd@163.com
更新日期/Last Update: 1900-01-01