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当前位置: 首页 > 文章 > 朱溪小流域土地利用/覆盖变化水文响应分析 安徽农业科学 2020 (10) 58-61
Position: Home > Articles > Impact of Land Use and Land Cover Change on Runoff Characteristics in Zhuxi Watershed Journal of Anhui Agricultural Sciences 2020 (10) 58-61

朱溪小流域土地利用/覆盖变化水文响应分析

作  者：
周伟东;汪小钦;朱雄斌
单  位：
关键词：
SWAT模型;水文响应;径流量;土地利用/覆盖;长汀县;朱溪小流域
摘  要：
定量模拟土地利用/覆盖对流域径流的影响,对于揭示水文循环规律和水土流失治理等具有重要意义。以福建省长汀县朱溪小流域为研究区域,在2011年土地利用/覆盖(S_0)基础上,设置林地S_1、耕地S_2、园地S_3和退耕还林S_4共4种土地利用/覆盖情景。利用SWAT模型,定量模拟朱溪小流域月平均径流在不同土地利用/覆盖情景下的变化情况。研究表明,不同情景下朱溪小流域月平均径流量的变化规律一致,但变化幅度不同,径流量从大到小依次为S_2、S_0、S_3、S_4、S_1。说明在现有土地利用/覆盖条件下,大量开垦耕地将使径流量大幅度增加,增加林地的面积能有效地减少径流量。径流量大小主要由降雨量决定,土地利用/覆盖对其起调节作用。在不改变土地利用/覆盖基本格局的前提下,退耕还林是最为可行的径流量减少方案。
译  名：
Impact of Land Use and Land Cover Change on Runoff Characteristics in Zhuxi Watershed
作  者：
ZHOU Wei-dong;WANG Xiao-qin;ZHU Xiong-bin;Key Laboratory of Spatial Data Mining and Information Sharing of Ministry of Education,National & Local Joint Engineering Research Center of Satellite Geospatial Information Technology,Fuzhou University;
关键词：
SWAT model;;Hydrological response;;Runoff;;Land use and land cover;;Changting County;;Zhuxi Watershed
摘  要：
It is of great significance to quantitatively simulate land use and land cover impact on runoff in river basin for hydrological cycle and soil erosion control.This article took Zhuxi Watershed as the study area,which locates in Changting County of Fujian Province.Four scenarios based on land use and land cover status(S_0) in 2011,namely forest scenario(S_1),cultivated land scenario(S_2),garden plot scenario(S_3) and reforestation of arable land scenario(S_4) were set up.Average monthly runoffs of Zhuxi watershed were simulated quantitatively using SWAT model.Results showed that variation trends of average monthly runoffs with time were consistent under different scenarios.Variation amplitudes of runoffs were different under different scenarios and the scenario order of variation amplitudes from big to small was S_2,S_0,S_3,S_4,S_1.Runoffs would greatly increase with increase in arable land,while effectively decrease with increase of forest area.Runoff is mainly determined by precipitation,while land use and land cover has a regulating effect on it.The forestation of arable land scenario is the most feasible way to reduce runoff without changing the basic land use and land cover pattern.

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