茶园降雨分配参数的建立

IF 2.8 3区环境科学与生态学 Q2 WATER RESOURCES

Hydrological Sciences Journal-Journal Des Sciences Hydrologiques Pub Date : 2023-02-20 DOI:10.1080/02626667.2023.2182211

Chitra Shukla, Kartikeya Tiwari, S. K. Mishra

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引用次数: 0

摘要

摘要茶叶在亚洲和非洲是一种受欢迎的作物，但关于茶叶流域水文的信息有限。本研究试图通过实验建立印度西孟加拉邦种植的27年茶树的降雨分配参数（RPP），即通流（TF）、茎流（SF）和截雨（IC）。TF、SF和IC的相对比例分别为59–89%、0.12%和10–40%，变异系数分别为10%、29%和27%。SF比例不重要（≤2%），可以省略。还分析了RPP对降雨深度、强度和持续时间的响应。除SF外，所有RPP均随降雨深度呈指数衰减。使用确定系数、平均绝对误差、均方根误差和Nash-Sutcliffe效率作为误差度量来评估拟合/验证的模型的拟合优度。这些结果对茶叶流域水文具有实际意义。

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Establishment of rainfall partitioning parameters for tea plantations

ABSTRACT Tea is a popular crop in Asia and Africa, yet only limited information on tea watershed hydrology is available. This study attempts to experimentally establish the rainfall partitioning parameters (RPPs), namely throughfall (TF), stemflow (SF), and rainfall interception (IC), for a plantation of 27-year-old tea plants grown in West Bengal, India. The relative proportions of TF, SF and IC were 59–89%, 0.12%, and 10–40% with coefficients of variation of 10%, 29%, and 27%, respectively. The SF proportion, being insignificant (≤2%), can be omitted. RPP responses were also analysed against rainfall depth, intensity, and duration. All RPPs except SF showed an exponential decay with rainfall depth. The fitted/validated models were evaluated for goodness of fit using coefficient of determination, mean absolute error, root mean square error, and Nash-Sutcliffe efficiency as error metrics. These results have pragmatic significance in tea watershed hydrology.

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来源期刊

Hydrological Sciences Journal-Journal Des Sciences Hydrologiques 环境科学-水资源

CiteScore

6.60

自引率

11.40%

发文量

144

审稿时长

9.8 months

期刊介绍： Hydrological Sciences Journal is an international journal focused on hydrology and the relationship of water to atmospheric processes and climate. Hydrological Sciences Journal is the official journal of the International Association of Hydrological Sciences (IAHS). Hydrological Sciences Journal aims to provide a forum for original papers and for the exchange of information and views on significant developments in hydrology worldwide on subjects including: Hydrological cycle and processes Surface water Groundwater Water resource systems and management Geographical factors Earth and atmospheric processes Hydrological extremes and their impact Hydrological Sciences Journal offers a variety of formats for paper submission, including original articles, scientific notes, discussions, and rapid communications.