干旱区生态环境知识资源中心(Arid): 半干旱区柠条生长与土壤水分消耗过程研究

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	半干旱区柠条生长与土壤水分消耗过程研究
其他题名	Growth of Caragana korshinskii and Depletion Process of Soil Water in Semi-Arid Region
	程积民; 万惠娥; 王静; 雍绍萍
来源期刊	林业科学
ISSN	1001-7488
出版年	2005
卷号	41 期号:2 页码:37-41
中文摘要	在黄土高原半干旱区采用工程整地与生物措施相结合的方法,进行柠条灌木林建设与土壤水分消耗及调控恢复研究.结果表明:在半干旱区柠条生长前6年为幼龄期,6～14年为中龄期,14年后进入老龄期.幼龄期0～800 cm土壤中未形成干层,中龄期土壤干层厚度为240～260 cm,老龄期干层为700cm.水平阶整地丰水年土壤水分盈余44.82 mm,对照亏缺51.5～79.6 mm;平水年亏缺53.91 mm,对照亏缺103.64mm;干旱年亏缺102.87 mm,对照亏缺153.32 mm.不同降水年份土壤水分的补偿深度为80～180cm,对照为21～45 cm.根据柠条主根、侧根和毛根的根量分布比例得出,土壤水分要恢复正常,丰水年需要13年,平水年需要16年以上,干旱年约需20年以上,而对照无论是丰水年、平水年还是干旱年均需20年以上.
英文摘要	Combining with engineering and biological measures, the construction of Caragana korshinskii vegetation and excessive depletion and resumption of soil water were studied. The results showed that the whole growing stages could be divided into three phases-young-age period for the first six years, middle-age period from the seventh year to the fourteenth year and old-age period after fourteen years. In young-age period, dry layer of 0 ~ 800 cm soils did not formed, while in middle-age and old-age period, dry layer reached 240 ~ 260 cm and 700 cm, respectively. By level-step measures, soil water had a surplus of 44.82 mm in abundant precipitation year, deficiency of 53.91 mm in equal precipitation year and 102.87 mm in dry year, and itB compensated depth of soil water in different precipitation year was 80 ~ 180 cm, while that of CK was deficiency of 51.5 ~ 79.6 mm, 103.64 mm and 153.32 mm respectively in different kinds of years and the compensated depth was 21 ~ 45 cm. According to the distributed proportion of the main root, the lateral roots and hair roots, it took 13 years for soil water of C. korshinskii vegetation by measures to resume natural situation in abundant precipitation year and over 16 years in equal precipitation year and over 20 years in dry year, while it took over 20 years for that of CK in any kinds of years.
中文关键词	柠条 ; 生长 ; 土壤水分 ; 消耗过程 ; 土壤干层 ; 半干旱区
英文关键词	Caragana korshinskii growth soil water depletion process soil dry layer semi-arid region
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:1924444
来源机构	中国科学院水利部水土保持研究所
资源类型	期刊论文
条目标识符	http://119.78.100.177/qdio/handle/2XILL650/206423
作者单位	中国科学院水利部水土保持研究所, 杨凌, 712100
推荐引用方式 GB/T 7714	程积民,万惠娥,王静,等. 半干旱区柠条生长与土壤水分消耗过程研究[J]. 中国科学院水利部水土保持研究所,2005,41(2):37-41.
APA	程积民,万惠娥,王静,&雍绍萍.(2005).半干旱区柠条生长与土壤水分消耗过程研究.林业科学,41(2),37-41.
MLA	程积民,et al."半干旱区柠条生长与土壤水分消耗过程研究".林业科学 41.2(2005):37-41.