干旱区生态环境知识资源中心(Arid): 荒漠草原中间锦鸡儿(Caragana intermedia)冠层穿透雨的发生与分布特征

Arid

	荒漠草原中间锦鸡儿(Caragana intermedia)冠层穿透雨的发生与分布特征
其他题名	Occurrence and Distribution of Throughfall under Caragana intermedia Canopy in Desert Steppe
	杨新国; 古君龙; 王兴; 陈林; 王磊; 宋乃平; 曲文杰
来源期刊	干旱区研究
ISSN	1001-4675
出版年	2019
卷号	36 期号:1 页码:131-138
中文摘要	为进一步认识荒漠草原带状人工中间锦鸡儿林(Caragana intermedia)植被稳定性维持的生态水文过程机制,通过对行生和散生中间锦鸡儿冠层穿透雨的对比研究,结果表明: ①两者对降水变化响应显著,但是差异不显著。散生和行生中间锦鸡儿穿透雨百分比变化范围分别为25. 6% ~ 96. 5%(Cv = 23%)和25. 4% ~ 96. 1%(Cv = 19%) ,穿透雨量均值分别为7. 55 mm和7. 40 mm。穿透雨量与降雨量、降雨历时、降雨强度都具有极显著的线性回归关系,但是穿透雨百分比与降水特征参数以幂函数关系为主。②冠层下穿透雨分布存在明显的空间异质性。穿透雨百分比普遍随距灌丛基部距离的增大而线性增大。旱区集中出现在散生中间锦鸡儿灌木的基部,向外百分比逐步提高;行生中间锦鸡儿则出现了多个旱区和雨极镶嵌分布的情况。
英文摘要	The rainfall redistribution through canopy is of important eco-hydrological significance for the survival of shrubs. The Caragana intermedia plantation in large area in desert steppe is mostly zonal,and the growth mode and morphological characteristics of natural sporadic C. intermedia plants are quite different. Whether this difference affecting the distribution of precipitation through canopy is necessary to be further verified. The eco-hydrological mechanism of vegetation stability of adult C. intermedia plantation in desert steppe should be further understood. The occurrence and distribution of throughfall under C. intermedia canopy in two different growth patterns (scattered and row distribution) were compared and analyzed by monitoring precipitation redistribution in 18 different rainfall events in 2016. The results showed that the throughfall percentage of scattered C. intermedia plants was 25. 6% - 96. 5%, that of row ones was 25. 4% - 96. 1%,and the coefficients of variation was 23% and 19% respectively. The mean values of throughfall were similar and for 7. 55 mm and 7. 40 mm respectively. Rainfall, rainfall duration,and rainfall intensity had a very significant linear relationship with thoughfall depth,but the relationship between throughfall percentage and characteristic parameters of precipitation was complex,which was dominated by power function,and the fitting significance of scattered C. intermedia plants was better than that of row ones. The distribution of throughfall under canopy was spatial heterogeneity. Generally, throughfall percentage was increased linearly with the increase of distance from shrub base. Thedry areaof throughfall was concentrated at the base of scattered C. intermedia plants,however, the distribution of row ones was more complex. Mosaic distribution of dry areas and rain pole was found for row C. intermedia plants. The different growth patterns of C. intermedia plants did not significantly affect the throughfall depth,but the spatial distribution pattern of throughfall under canopy was significantly changed,which might further affect the process of the conversion from precipitation to soil water.
中文关键词	穿透雨 ; 中间锦鸡儿 ; 空间异质性 ; 降水特征 ; 荒漠草原 ; 盐池县
英文关键词	throughfall Caragana intermedia spatial heterogeneity rainfall desert steppe Yanchi county
语种	中文
国家	中国
收录类别	CSCD
WOS类目	FORESTRY
WOS研究方向	Forestry
CSCD记录号	CSCD:6414272
来源机构	宁夏大学
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/239132
作者单位	宁夏大学;;宁夏大学;;宁夏大学西部生态与生物资源开发联合研究中心, 西北土地退化与生态恢复国家重点实验室培育基地;;退化生态系统恢复与重建教育部重点实验室;;, 银川;;银川;;银川, 宁夏;;宁夏;;宁夏 750021;;750021;;750021, 中国
推荐引用方式 GB/T 7714	杨新国,古君龙,王兴,等. 荒漠草原中间锦鸡儿(Caragana intermedia)冠层穿透雨的发生与分布特征[J]. 宁夏大学,2019,36(1):131-138.
APA	杨新国.,古君龙.,王兴.,陈林.,王磊.,...&曲文杰.(2019).荒漠草原中间锦鸡儿(Caragana intermedia)冠层穿透雨的发生与分布特征.干旱区研究,36(1),131-138.
MLA	杨新国,et al."荒漠草原中间锦鸡儿(Caragana intermedia)冠层穿透雨的发生与分布特征".干旱区研究 36.1(2019):131-138.