干旱区生态环境知识资源中心(Arid): 岷江上游森林/干旱河谷交错带不同土地利用类型土壤有机碳和活性有机碳特征

Arid

	岷江上游森林/干旱河谷交错带不同土地利用类型土壤有机碳和活性有机碳特征
其他题名	Characteristics of Soil Organic Carbon and Labile Organic Carbon under Different Land Use Types at Forest-Drought Valley Ecotone in the Upper Reaches of Minjiang River
	王晓君; 王宪帅; 黄从德; 王勇军
来源期刊	水土保持学报
ISSN	1009-2242
出版年	2011
卷号	25 期号:2 页码:167-172
中文摘要	研究了岷江上游森林/干旱河谷交错带川滇高山栎次生林、人工刺槐林、灌木林地、灌丛地、经济林和农耕地6种土地利用类型的土壤有机碳及微生物量碳、水溶性有机碳和易氧化碳. 结果表明:6种土地利用类型土壤有机碳及3种活性有机碳含量以川滇高山栎次生林高于或显著高于其他土地类型(p<0.05),以农耕地低于或显著低于其他土地类型(p<0.05). 6种土地利用类型的土壤平均有机碳含量(13.65 g/kg)低于同区域土壤的平均有机碳含量(17 g/kg). 6种土地利用类型的土壤微生物量碳、水溶性有机碳和土壤易氧化碳占有机碳的比率分别介于1.36%~2.35%,0.82%~1.34%和7.77%~10.50%之间. 研究结果说明交错带6种土地利用类型的土壤有机碳含量较低,有不断下降的趋势,且活性大,容易转化. 因此,减少人为干扰对于维持和增加森林/干旱河谷交错带土壤有机碳具有重要的作用
英文摘要	This paper investigated characteristics of soil organic carbon and 3 kinds of labile carbon: microbial biomass carbon, water-soluble organic carbon and readily oxidation carbon under six kinds of land use types(includingQuercus semicarpifoliasecondary forest, Robinia pseudoacaciaplantation, shrubbery, shrub, economic forest and farmland) at forest-drought valley ecotone in the upper reaches of Minjiang River. The results showed: Respective content of soil organic carbon and three kinds of labile organic carbon of Quercus semicarpifoliasecondary forest was higher or significantly higher than the other five kinds of land use(p< 0.05); Respective content of soil organic carbon and three kinds of labile organic carbon of farmland was lower or significantly lower than the other five kinds of land use(p<0.05). The average soil organic carbon content (13.65 g/kg) under six kinds of land use was lower than that (17 g/kg) in the same area. Under six kinds of land use types, microbial biomass carbon, water-soluble organic carbon and readily oxidation carbon respectively account for 1.36% to 2.35%, 0.82% to 1.34% and 7.77% to 10.50% of soil organic carbon. The study showed: Respective soil organic carbon content under six kinds of land use was low, which had the downward trend at ecotone. Moreover, the soil organic carbon was active and easily invert. Thus, reducing artificial interference was important to sustain and increase the soil organic carbon at forest-drought valley ecotone
中文关键词	交错带 ; 土地利用类型 ; 土壤有机碳 ; 土壤活性有机碳 ; 干旱河谷
英文关键词	ecotone different land use types soil organic carbon soil labile organic carbon arid river valley
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:4190265
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/227077
作者单位	四川农业大学林学院, 雅安, 四川 625014, 中国
推荐引用方式 GB/T 7714	王晓君,王宪帅,黄从德,等. 岷江上游森林/干旱河谷交错带不同土地利用类型土壤有机碳和活性有机碳特征[J],2011,25(2):167-172.
APA	王晓君,王宪帅,黄从德,&王勇军.(2011).岷江上游森林/干旱河谷交错带不同土地利用类型土壤有机碳和活性有机碳特征.水土保持学报,25(2),167-172.
MLA	王晓君,et al."岷江上游森林/干旱河谷交错带不同土地利用类型土壤有机碳和活性有机碳特征".水土保持学报 25.2(2011):167-172.