干旱区生态环境知识资源中心(Arid): 岷江上游河谷土壤发生的空间分异及环境意义

Arid

	岷江上游河谷土壤发生的空间分异及环境意义
其他题名	Spatial Heterogeneity and Environmental Significance of Pedogenesis in Soils from Valley of the Upper Minjiang River
	文星跃 1; 黄艳娟 2; 黄成敏 2
来源期刊	地理科学
ISSN	1000-0690
出版年	2017
卷号	37 期号:2 页码:266-273
中文摘要	分析了岷江上游河谷沿岸及九顶山西北坡表层土壤粒度、氧化铁、有机质、碳酸盐、pH、有机碳同位素、阳离子交换性、粘土矿物等理化性质。结果表明,三江至映秀段土壤具有较高的粘粉比、铁游离度及粘粒和有机质含量,而碳酸盐含量、pH和有机质delta~(13)C值相对偏低,说明土壤发育较好、淋溶作用较强,反映了气候湿润和植被以乔木为主的环境特征;草坡至凤仪段土壤颗粒较粗、碳酸盐含量和pH较高,而铁游度和有机质含量较低,有机质delta~(13)C值偏重,反映出干旱的气候和以C_4植被为主的环境特征。九顶山西北坡土壤随海拔的增加粘粉比、有机质含量增大,出现纤铁矿而方解石缺失,反映干旱河谷区高海拔气候湿润;而海拔低于2 000 m的土壤粘粉比和粘粒、有机质含量较低,方解石含量和pH值较高,指示了干旱的气候特征。
英文摘要	Investigation on the pedogenesis of soils from the upper reaches of the Minjiang River is necessary for ecological reconstruction and vegetation restoration in this region. The soils development from the valley of the upper Minjiang River and the Jiuding Mountain were investigated based on the physical and chemical properties such as grain size distribution, oxide of iron, organic matter, carbonate, pH, organic stable isotope, cation exchange capacity, and clay mineralogy. The well development and eluviation prevailed in the soils from the Sanjiang to the Yingxiou, demonstrated by the higher values of clay/silt, iron free degree, clay and organic mater contents and lower values of carbonate content, pH and organic delta~(13)C, indicating an environmental property of warm-wet climatic conditions and prevailed trees. However, the soils from the Caopo to the Fengyi were characterized by the higher sand and carbonate contents, pH and organic delta~(13)C, and lower values of iron free degree and organic mater content, showing an arid climate in where C_4 vegetation prevail. The clay/silt and organic mater content increase, iepidocrocite arising and calcite lack occurred in the high altitude region of the Jiuding Mountain, indicating a wet climatic condition. While the soils under 2000 metre above sea level presented an arid climatic feature, as demonstrated by the lower values of clay/silt and contents of clay and organic mater, as well as the higher calcite content and pH.
中文关键词	土壤发生 ; 空间分异性 ; 干旱河谷 ; 岷江上游 ; 九顶山
英文关键词	pedogenesis spatial heterogeneity arid valley the upper Minjiang River the Jiuding Mountain
语种	中文
国家	中国
收录类别	CSCD
WOS类目	AGRICULTURE MULTIDISCIPLINARY
WOS研究方向	Agriculture
CSCD记录号	CSCD:5939564
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/235738
作者单位	1.西华师范大学国土资源学院, 南充, 四川 637002, 中国; 2.四川大学环境科学与工程系, 成都, 四川 610065, 中国
推荐引用方式 GB/T 7714	文星跃,黄艳娟,黄成敏. 岷江上游河谷土壤发生的空间分异及环境意义[J],2017,37(2):266-273.
APA	文星跃,黄艳娟,&黄成敏.(2017).岷江上游河谷土壤发生的空间分异及环境意义.地理科学,37(2),266-273.
MLA	文星跃,et al."岷江上游河谷土壤发生的空间分异及环境意义".地理科学 37.2(2017):266-273.