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青藏高原多稳态高寒草甸生态系统蒸散特征对比研究
舒锴; 柯浔; 辛莹; 郭小伟; 曹广民; 杜岩功; 周华坤
2019
Source Publication草原与草坪
Volume39Issue:6Pages:83-88
Abstract在青海海北高寒草地生态系统国家野外科学观测研究站,以禾草-矮嵩草群落、矮嵩草群落、小嵩草群落、杂类草-黑土滩次生裸地4种演替稳态高寒草甸为研究对象,利用小型蒸渗仪法和烘干法等,研究多稳态高寒草甸的蒸散量、土壤含水率、贮水量变化特征。结果表明:随放牧强度增加,生长季盛期,4种演替稳态高寒草甸生态系统每日平均蒸散量出现下降趋势;4种稳态高寒草甸总蒸散量分别是禾本—矮嵩草群落235.2 mm,矮嵩草群落209.1 mm,小嵩草群落203.1 mm,杂类草—黑土滩次生裸地150.3 mm,均低于同期降水量。多稳态高寒草甸表层0~10 cm土壤含水率呈逐渐减小的趋势,且8月含水率降低速度较快,9月含水率下降不明显。禾本-矮嵩草群落10~20 cm土壤含水率变化不明显,其余3种草甸10~20 cm土层含水率均呈减小的趋势,但变化幅度低于表层土壤;高寒草甸0~10、10~20 cm土层贮水量均呈先降低后增加的趋势,生长季4种演替稳态高寒草甸生态系统各土层贮水量均逐渐减小。
Keyword多稳态高寒草甸 蒸散量 土壤含水率 贮水量
Document Type期刊论文
Identifierhttp://210.75.249.4/handle/363003/60620
Collection中国科学院西北高原生物研究所
Recommended Citation
GB/T 7714
舒锴,柯浔,辛莹,等. 青藏高原多稳态高寒草甸生态系统蒸散特征对比研究[J]. 草原与草坪,2019,39(6):83-88.
APA 舒锴.,柯浔.,辛莹.,郭小伟.,曹广民.,...&周华坤.(2019).青藏高原多稳态高寒草甸生态系统蒸散特征对比研究.草原与草坪,39(6),83-88.
MLA 舒锴,et al."青藏高原多稳态高寒草甸生态系统蒸散特征对比研究".草原与草坪 39.6(2019):83-88.
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