干旱区生态环境知识资源中心(Arid): 陕西黄土高原中南部土壤CO

Arid

	陕西黄土高原中南部土壤CO_2释放量变化研究
其他题名	A Study on the Flux of CO_2 Release in the Middle and South of the Plateau in Shaanxi
	贺辉; 赵景波; 杜娟; 童心刚; 郝玉芬; 刘晓琼
来源期刊	干旱区资源与环境
ISSN	1003-7578
出版年	2003
卷号	17 期号:5 页码:49-53
中文摘要	本文根据NaOH溶液吸收CO_2的方法，对陕西黄土高原中南部4个观测点的土壤CO_2释放量时行了昼夜观测。观测结果表明，不同地区、不同气候和不同土质土壤CO_2释放量存在差异，冷干地区较暖湿地区土壤CO_2释放量少，凉季较暖季土壤CO_2释放量少；粘性硬质土较松散黄土CO_2释放量少。长武、洛川、西安南郊土壤CO_2释放量变化再次证明，在厚层黄土发育的地区，土壤CO_2翻译量变化相对于大气温度变化具有滞后性，从当日早晨至次日早期，CO_2翻译量具有由低变高再变低的普遍规律。
英文摘要	By means of CO_2 absorption by NaOH solution, the flux of CO_2 release in four research areas was observed in the middle south of Loess Plateau in Shaanxi. Results show that there are differences a-mang flux of CO_2 released in different areas, different climate and different geological conditions. The release flux is lower in cool and arid area than that in warm and moist area, and it is lower in cool season than that in warm season; and it is also lower in hard soil than that in loose soil. The flux of CO_2 release in Chanwu, Luochuan and the south of Xi’an area proved again that the flux of CO_2 release from soil is about 4-6 hours later than that of air temperature change, and the release flux changes from low to high and then to low from this morning to the next, which is general regularity of the change of release flux of CO_2 on thick loess layer.
中文关键词	黄土高原中部 ; 土壤CO_2 ; 释放变化 ; 影响因素
英文关键词	the middle and south of the loess plateau CO_2 of soil the change of release flux effecting factors
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:1199183
来源机构	陕西师范大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/204103
作者单位	陕西师范大学地理系, 西安, 陕西 710062, 中国
推荐引用方式 GB/T 7714	贺辉,赵景波,杜娟,等. 陕西黄土高原中南部土壤CO_2释放量变化研究[J]. 陕西师范大学,2003,17(5):49-53.
APA	贺辉,赵景波,杜娟,童心刚,郝玉芬,&刘晓琼.(2003).陕西黄土高原中南部土壤CO_2释放量变化研究.干旱区资源与环境,17(5),49-53.
MLA	贺辉,et al."陕西黄土高原中南部土壤CO_2释放量变化研究".干旱区资源与环境 17.5(2003):49-53.