干旱区生态环境知识资源中心(Arid): 三北工程黄土高原丘陵沟壑区森林降温增湿效果研究

Arid

	三北工程黄土高原丘陵沟壑区森林降温增湿效果研究
其他题名	The cooling and humidifying effect by the forest ecosystem in the hilly and gully area of Loess Plateau of the Three North Shelter Forest System Project region
	肖玉 1; 谢高地 1; 甄霖 1; 徐洁 2; 王洋洋 1
来源期刊	生态学报
ISSN	1000-0933
出版年	2019
卷号	39 期号:16 页码:5836-5846
中文摘要	生态系统可通过植被蒸腾与土壤蒸发作用调节区域温度与湿度。三北工程黄土高原丘陵沟壑区属于干旱和半干旱区,森林降温增湿功能有助于改善区域生存环境。在分析研究区森林覆被变化基础上,利用Penman-Monteith公式模拟了森林实际蒸散量,研究了森林增湿与降温效果。研究结果显示:(1)1980-2015年研究区森林面积增加了2.25%,主要来自荒草地、耕地和荒漠;(2)1980-2015年研究区森林6-9月实际蒸散总量为1.1910~(10)-1.4010~(10) t/a,平均实际蒸散量为219-257 mm,可使区域6-9月绝对湿度每日增加0.47-0.55 g/m~3,相对湿度每日增加2.87%-3.32%;(3)森林通过蒸散作用吸热量为29.15* 10~(15)34.2610~(15) kJ/a,单位面积蒸散吸热量为53.7210~863.13*10~8 kJ hm~(-2) a~(-1),通过蒸散吸热日降温量为0.92-1.08 ℃/d;(4)研究区森林蒸散量在19802010年逐渐增加,但在2015年明显下降,这主要是由降水减少导致;森林面积较大的山西和陕西森林蒸散降温增湿效果较好。通过对比相同年份不同土地覆被发现,森林实际蒸散量显著高于其他土地覆被类型。因此,未来研究区可在水资源承载能力范围内适当增加森林面积,充分发挥森林调节区域气候的作用。
英文摘要	The ecosystem can regulate regional temperature and humidity through evapotranspiration. The climate in the hilly and gully area of the Loess Plateau in the Three North Shelter Forest System Project ( TNSFSP) region is arid and semi-arid,and the cooling and humidifying function of the forest ecosystem is crucial for improving the living environment in this region. Based on the analysis of forest cover changes in this area, in this study, we simulated using the Penman-Monteith formula and investigated the contribution of evapotranspiration by ecosystems to regional climate regulation. The results show that: (1) The forest area in the study region ( mainly grassland, cropland, and desert) increased by 2.25% from 1980 to 2015. (2) The total amount of forest actual evapotranspiration ( AET) in the study area from 1980 to 2015 was between 1.19 * 10~(10) t/a and 1.40 * 10~(10) t/a, and average AET ranged from 219 mm to 257 mm. Absolute humidity from June to September in 1980 to 2015 increased by 0.47-0.55 g/m~3 per day, and the relative humidity will increase by 2.87%-3.32% per day. (3) Heat absorption of the forest through evapotranspiration was estimated as 29.15 * 10~(15) to 34.26 * 10~(15) kj/a, evapotranspiration per hectare was 53.72 * 10~863.13 * 10~8 kJ hm~(-2) a~(-1)), and the daily cooling rate by evapotranspiration was 0.92-1.08 ℃ d~(-1). (4) The amount of forest evapotranspiration increased gradually from 1980 to 2010,but it decreased significantly in 2015,which was mainly caused by the decrease in precipitation. Spatially, forests in Shanxi and Shaanxi provinces, with a larger forest area, had better evapotranspiration and humidification effects. Comparison of the different land cover in 1980 to 2015 showed that the actual evapotranspiration of the forest was still significantly higher than other land cover types. In future, the forest area will be appropriately increased within the carrying capacity of water resources, and the role of forest will be even more crucial in regional climate regulation.
中文关键词	降温增湿 ; 气候调节 ; 造林 ; 生态建设 ; 蒸散作用
英文关键词	cooling and humidifying effect climate regulation afforestation ecological construction evapotranspiration
语种	中文
收录类别	CSCD
WOS类目	BIOLOGY
WOS研究方向	Life Sciences & Biomedicine - Other Topics
CSCD记录号	CSCD:6561796
来源机构	中国科学院地理科学与资源研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/316207
作者单位	1.中国科学院地理科学与资源研究所;;中国科学院大学, ;;, ;;, 北京;;北京 100101;;100049, 中国; 2.中国科学院地理科学与资源研究所;;中国科学院大学;;北京林业大学自然保护区学院, ;;;;, ;;;;, 北京;;北京;;北京 100101;;100049;;100083, 中国
推荐引用方式 GB/T 7714	肖玉,谢高地,甄霖,等. 三北工程黄土高原丘陵沟壑区森林降温增湿效果研究[J]. 中国科学院地理科学与资源研究所,2019,39(16):5836-5846.
APA	肖玉,谢高地,甄霖,徐洁,&王洋洋.(2019).三北工程黄土高原丘陵沟壑区森林降温增湿效果研究.生态学报,39(16),5836-5846.
MLA	肖玉,et al."三北工程黄土高原丘陵沟壑区森林降温增湿效果研究".生态学报 39.16(2019):5836-5846.