干旱区生态环境知识资源中心(Arid): 新疆阿勒泰地区荒漠草地土壤有机碳特征及其环境影响因素分析

Arid

	新疆阿勒泰地区荒漠草地土壤有机碳特征及其环境影响因素分析
其他题名	Environmental factors influencing soil organic carbon and its characteristics in desert grassland in Altay,Xinjiang
	刘慧霞; 董乙强; 崔雨萱; 刘星宏; 何盘星; 孙强; 孙宗玖
来源期刊	草业学报
ISSN	1004-5759
出版年	2021
卷号	30 期号:10 页码:41-52
中文摘要	为探究新疆阿勒泰地区荒漠草地土壤有机碳空间分布特征,采用路线调查和典型样地布设相结合的方法确定104个样地,对0~5 cm、5~10 cm、10~20 cm土层土壤有机碳含量进行测定,同时运用数量生态学和地统计学方法,揭示荒漠土壤有机碳含量及密度空间变异的影响因素。结果表明:0~20 cm荒漠土壤有机碳含量为0.98~11.80 g·kg~(-1)、平均值为3.79 g·kg~(-1),土壤有机碳密度为257.57~2904.19 g·m~(-2)、平均值为1057.49 g·m~(-2);随土层深度的增加,土壤有机碳含量(0~5 cm,5~10 cm,10~20 cm)及土壤有机碳密度(0~10 cm,10~20 cm)呈现降低趋势。高值区均主要集中在富蕴县北部地区,低值区主要分布在哈巴河县、布尔津县和福海县南部地区;在0~20 cm土层中,不同荒漠亚类土壤有机碳含量及密度均表现为土质荒漠>砾砂质荒漠>砾石质荒漠>沙质荒漠,且土质荒漠土壤有机碳含量、有机碳密度分别是沙质荒漠土壤的1.74、1.72倍(P<0.05);从冗余分析结果来看,各环境因子对土壤有机碳的实际解释总量为30.93%,其中植被覆盖度、土石比、根部土壤湿度是引起阿勒泰地区荒漠草地土壤有机碳变化的主导因素。总之,研究结果更新与补充了阿勒泰地区荒漠草地土壤有机碳库数据,初步阐明了有机碳变化的主导因素,为荒漠草地管理和可持续利用及碳预算提供资料支撑。
英文摘要	The aim of this research was to explore the spatial distribution characteristics of soil organic carbon in desert grassland in the Altay region of Xinjiang. We investigated 104 sampling plots using a combination of transect surveys and conventional plot layouts in August 2018,and collected soil samples for 0-5 cm,5-10 cm and 10-20 cm soil depths in the centre of the sample plots. The factors influencing the content and spatial variation of soil organic carbon density were evaluated using quantitative ecology and geostatistics methodologies. It was found that the range for desert soil organic carbon content was 0.98-11.80 g·kg~(-1) in the 0-20 cm layer,with an average value of 3.79 g·kg~(-1). The soil organic carbon density was 257.57-2904.19 g·m~(-2) in 0-20 cm layer,with an average value of 1057.49 g·m~(-2). With increasing soil depth,the soil organic carbon content(0-5 cm,5-10 cm, 10-20 cm)and density(0-10 cm,10-20 cm)decreased. Localities with high soil C values were mainly concentrated in the northern part of Fuyun County,while areas with low soil C were mainly distributed in Habahe County,Burqin County and southern Fuhai County. In different desert subtypes,the content and density of organic carbon ranked: soil desert>gravel sandy desert>gravelly desert>sandy desert. The values for organic carbon content and organic carbon density in soil of the soil desert soil were,respectively 1.74 and 1.72 times those of the sandy desert soil(P< 0.05). From the results of redundancy analysis,the proportion of variation in soil organic carbon by various environmental factors was 30.93%,with the leading explanatory factors being vegetation cover,soil∶rock ratio,and soil moisture level in the root zone. This study has updated and expanded the available data on soil organic carbon pools in desert grassland in the Altay area and clarified the leading factors of organic carbon change,and has provided data support for desert grassland management,sustainable utilization and carbon budgeting.
中文关键词	土壤有机碳 ; 荒漠草地 ; 阿勒泰地区 ; 冗余分析 ; 影响因子
英文关键词	soil organic carbon desert grassland Altay region redundancy analysis factors influencing soil C
类型	Article
语种	中文
收录类别	CSCD
WOS类目	Agriculture
CSCD记录号	CSCD:7073820
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/377530
作者单位	刘慧霞, 新疆农业大学草业学院, 乌鲁木齐, 新疆 830052, 中国.; 崔雨萱, 新疆农业大学草业学院, 乌鲁木齐, 新疆 830052, 中国.; 刘星宏, 新疆农业大学草业学院, 乌鲁木齐, 新疆 830052, 中国.; 何盘星, 新疆农业大学草业学院, 乌鲁木齐, 新疆 830052, 中国.; 董乙强, 新疆农业大学草业学院;;新疆草地资源与生态重点实验室;;西部干旱荒漠区草地资源与生态教育部重点实验室, ;;新疆草地资源与生态重点实验室;;西部干旱荒漠区草地资源与生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐;;乌鲁木齐, 新疆;;新疆;;新疆 830052;;830052;;830052, 中国.; 孙宗玖, 新疆农业大学草业学院;;新疆草地资源与生态重点实验室;;西部干旱荒漠区草地资源与生态教育部重点实验室, ;;新疆草地资源与生态重点实验室;;西部干旱荒漠区草地资源与生态教育部重点实验室, 乌鲁木齐;;乌鲁木齐;;乌鲁木齐, 新疆;;新疆;;新疆 830052;;830052;;830052, 中国.; 孙强, 新疆维吾尔自治区草原总站, 乌鲁木齐, 新疆 830049, 中国.
推荐引用方式 GB/T 7714	刘慧霞,董乙强,崔雨萱,等. 新疆阿勒泰地区荒漠草地土壤有机碳特征及其环境影响因素分析[J],2021,30(10):41-52.
APA	刘慧霞.,董乙强.,崔雨萱.,刘星宏.,何盘星.,...&孙宗玖.(2021).新疆阿勒泰地区荒漠草地土壤有机碳特征及其环境影响因素分析.草业学报,30(10),41-52.
MLA	刘慧霞,et al."新疆阿勒泰地区荒漠草地土壤有机碳特征及其环境影响因素分析".草业学报 30.10(2021):41-52.