Hydrological Responses to Various Scenarios of Land Use Change in Hongru River Watershed

WANG Gaodan; TANG Yanjun; YANG Xiaoying; ZHANG Xiaoxiang

doi:10.13961/j.cnki.stbctb.2016.01.015

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Hydrological Responses to Various Scenarios of Land Use Change in Hongru River Watershed

- Hydrological Responses to Various Scenarios of Land Use Change in Hongru River Watershed
- Bulletin of Soiland Water Conservation Vol. 36, Issue 1, Pages: 82-87(2016)
- 作者机构：
  
  1. 珠江水利科学研究院,广东,广州,510611
  2. 淮河水利委员会水文局(信息中心),安徽,蚌埠,233001
  3. 复旦大学环境科学与工程系,上海,200433
  4. 河海大学地理信息科学与工程研究所,江苏,南京,210098
- 作者简介：
- 基金信息：
- DOI：10.13961/j.cnki.stbctb.2016.01.015
  CLC：
- Published：2016
- 稿件说明：
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WANG Gaodan, TANG Yanjun, YANG Xiaoying, et al. Hydrological Responses to Various Scenarios of Land Use Change in Hongru River Watershed[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 82-87.
DOI：

WANG Gaodan, TANG Yanjun, YANG Xiaoying, et al. Hydrological Responses to Various Scenarios of Land Use Change in Hongru River Watershed[J]. Bulletin of Soiland Water Conservation, 2016, 36(1): 82-87. DOI： 10.13961/j.cnki.stbctb.2016.01.015.

摘要

[目的] 研究洪汝河流域土地利用变化对水文过程的影响

为当地水资源的合理规划和利用提供依据和参考. [方法] 本研究以土壤水体评价模型(soil and water assessment tool

SWAT)为基础

通过设计多种土地利用情景模式模拟洪汝河流域水文情景

首先利用数字高程模型(digital elevation model

DEM)

土地利用数据、土壤数据以及日气象数据建立模型;其次选用2006—2008年的水文观测数据进行模型率定

并进行敏感性和不确定性分析;最后

设置4种土地利用情景模式进行水文模拟. [结果] 退耕还林情景下径流减少4.23%;而在耕地增加

城镇用地增加和以城镇用地、林地草地增加为主的复杂土地利用变化这3种情景下

径流分别增加3.01%

4.91%和1.50%. [结论] 退耕还林增加了可涵养水源的森林

使得径流减少

而增加耕地开垦或城市建设用地则会增加地表径流.

Abstract

[Objective] The objective of this study is to analyze the impacts of land use change on the hydrological process in the Hongru river basin in order to provide the basis and reference for the rational planning and utilization of local water resources. [Methods] Various scenarios of land use change were designed to simulate the hydrological process in Hongru river watershed based on SWAT(soil and water assessment tool) model. DEM(digital elevation model)

land use data

soil data

daily meteorological data were used as the input to establish the SWAT model. Observation data from 2006 to 2008 were used to calibrate and analyze the sensitivity and uncertainty of the established model. Four land use scenarios(S1: conversion of degraded farmland into forest; S2: increase farmland; S3: increase urban land; S4: increase urban land

forest

and grassland) were set up for hydrological modeling. [Results] The runoff was expected to decrease by 4.23 % in S1

while it was expected to increase by 3.01% in S2

4.91% in S3 and 1.50 % in S4. [Conclusion] Returning cultivated land to forest and grassland can reduce the runoff

while reclamation or urbanization will increase the runoff.

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references

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