第
46
卷第
5
期
2010
年
10
月
兰州大学学报(自然科学版)
Journa1
of
Lanzhou
University
(Natura1
Scie
时
es)
文章编号:
0455-2059(2010)05-0050-06
水文统计模式在黄士高原小流域
产流计算中的分布式应用
李常斌杨文瑾李文艳
2
王雄师
3
杨致远
4
(1.兰州大学西部环境与气候变化研究院，兰州
730000;
2.
兰州大学资源环境学院，兰州
730000;
3.
甘肃省水利水电勘测设计研究院，兰州
730000;
4.
甘肃省城乡规划设计研究院，兰州
730000)
Vol. 46 No. 5
Oct.2010
摘
要:以半干旱陇西黄土高原典型小流域为研究区，选择并集成水文统计模式对不同利用类型土地
进行分布式次降雨
产流模拟.经检验，模型的总体误差为
12.6%
，模拟精度较好.根据模拟结果，不同
地类对次降雨过程水量分配的影响迥异，阴坡入渗量整体大于阳坡的，而林地和草地地表产流量小于
其他地类的.表明良好的地表覆被条件使降雨蓄渗增加，有利于土壤水分状况的改善.
关键词:土地利用类型;次降水过程;水文统计模式;安家沟流域
中图分类号:
X143; TV12
1.
1
文献标识码
:A
Integration
of
hydro-statistical
modules
for
the
overland
flow
simulation
in
a
small
watershed
on
the
loess
plateau
L1
Chang-bin
1,
YANG
W
ε
n-jin
1
，
L1
W
ε
n-y
α
n
2
，
WANG
Xiong-shi
3
,
YANG
Zhi-yu
αη4
(1.
Research School of Arid
E
盯
ironment
& Climate
Cha
吨
e
，
La
皿
hou
University,
La
皿
hou
730000, China;
2.
School of Resources
and
Environmental Sciences, Lanzhou University, Lanzhou 730000, China;
3.
Institute
of Survey
and
Design for Hydro-engineering in
Gansu
Province, Lanzhou 730000, China;
4.
Inst
阳
te
of
Urban
Planning and Design in
Gansu
Provi
配
e
，
La
皿
hou
730000, China)
Abstract:
A typica1
small
watershed
in
the
semi-arid
Longxi
10ess
p1ateau
waβse1ected
as
the
study
site
and
a
set
of
hydro1ogica1
statistica1
modu1es
were
adopted
and
integrated
to
simu1ate
the
independent
process
of
rainfall-overland
flow
generation
with
the
influences
of
different
1and
uses
in
the
area.
The
statistica1
hydro-
1ogica1 modu1es
were
applied
and
validated
with
an
overall
error
of
12.6%,
indicating
a re1ative
satisfactory
accuracy
for
the
watershed
hydro1ogica1
simu1ation.
旦、
om
the
resu1ts
of
the
simu1ation
,
it
was
concluded
that
1and
uses
has
a
significant
impact
on
water
redistribution
during
the
rainfall-overland
flow
generation.
There
had
been
a
greater
infiltration
in
the
shading
slope
area
compared
to
that
in
the
open
area
,
and
the
overland
flow
in
forest 1and
and
grass1and
were
obvious1y 1ess
than
that
in
other
areas
,
which
revea1ed
that
the
better
1and cover
condition
is he1pfu1
to
the
soil
moisture
maintenance
due
to
much
more
infiltration
in
such
area
during
the
rainfall
runoff
process.
Key
words:
1and
use
type;
independent
rainfall
process;
hydro-statistica1
modu1e;
Anjiagou
watershed
地处半干旱区的黄土高原，因气候干旱、水
资源稀少和水土流失严重而备受关注.由于人口
众多，农业和生态用水多以雨养为主，水源稀缺历
收稿日期
2010-04-14;
修回日期
2010-09-02
来是黄土高原地区经济发展和产业模式转变的瓶
颈.为了在生产实践中更好地利用有限水资源，黄
土高原地区水文水资源演替以及相应的生态效益
基金项目:兰州大学中央高校基本科研业务费专项基金项目
(Lzujbky-2009-85)
;国家自然科学基金委创新群体项目
(40721061)
作者简介:李常斌
(1976
一)，男，甘肃靖远人，讲师，博士，
e-mail:
licb@lzu.edu.cn.
研究方向为干旱区水文及水资源.
资源评论
