坡地不同垫面产流及物质联动研究 The Stduy Of Runoff And Matter Linkage In Different Slope Land

排行榜 收藏 打印 发给朋友 举报 来源: 《水土保持学报》 发布者:cjk3d
热度11票 浏览16次 【共1条评论】【我要评论 时间:2012年7月31日 20:44

LAbs8{0摘要:基于红壤坡地3种土地利用类型连续5年地表径流量及养分流失的研究,结果表明:(1)不同水份年对不同利用方式的影响比较突出:柑橘园和茶园的径流量变化趋势极为相似;农作区变化差异显著,一直保持很高的径流量,其产流规律在丰水年和缺水年表现出明显的"单峰型",峰值出现在7月,占年径流量的33.60%和57.59%,而平水年则表现为"双峰型",两个产流高峰出现在5月和7月,其径流量占全年径流总量的31.17%和22.49%.(2)多年累积径流量总体趋势为农作区>茶园>柑橘园,农作区径流量的年际变化极为显著(农作区年径流量总和为108.20m3.是柑橘园的2.83倍和茶园的2.10倍).在相同水份年的情况下,其变异系数仍有很大出入(农作区的平均变异系数为147.08%.缺水年变异系数达188.90%),而其他两个小区则在不同水份年变化差异显著:丰水年(柑橘园为106.87%,茶园为100.22%)和缺水年(柑橘园为64.21%,茶园为65.88%),平水年稳定在一定范围之内.(3)农作区年均损失氮、磷、钾分别为47.09,4.85,123.34 kg/km2,是柑橘园的2.70,3.48,3.39倍和茶园的2.36,3.91,4.52倍.因此红壤坡地选种柑橘或茶树能有效防止养分失流及截留雨水,在防治农业面源污染方面有显著效果.Abstract:The paper through three kinds of land use types in red soil slope land and 5 years sequence runoff and nutient loss study, It's showed that: (1) Different water years prominent effect in different land use types, the variation tendencies of runoff of the citrus orchard and tea garden are extremely similar, the significant changes in farming land that has been keeping high runoff. The law in wet years and dry years shows obvious "unimodal type",the peak appeared in July that accounting for 33.60% and 57.59% in the annual volume of runoff. But average years displays for "bimodal type " ,two runoff peaks in May and July that accounts for 31.17% and 22.49% of total annual runoff. (2) The cumulative amount runoff for overall years trend is farming land>tea gardcn>citrus orchard. The runoff in farming land is remarkably interannual variation(the sum of runoff in farming land was 108.20 m3 and it was 2.83 times of citrus orchard and 2. 10 times of tea garden), it still has a large variation coefficient in the same water years(the average coefficient of variation in farming land was 147.08%, but the coefficient of variation in dry year is up to 188.90%), The other two areas significant changes in different water years: in rainy years (citrus orchard was 106.87% and 100.22% for the tea garden) and dry years(64.21% of citrus orchards and tea garden was 65.88%), Average years stability in a certain range. (3) The annual loss of nitrogen, phosphorus and potassium were 47.09,4.85,123.34 kg/km2 in farming land. It was the citrus orchard of 3.48, 2.70,3.39 times and 2.36,3.91, 4.52times of tea garden. Therefore, the red soil slop land select the citrus orchards or tea garden can effectively prevent loss of nutrients flow and intercept rainfall, there is a prominent effect in preventing and controlling agricultural non-point source pollution.水利论文b5uS,f$r8d7oU

#A)PgI5w6Md0作者:

h3uX9W.V0 水利论文"z| d.^^:qr9V

马军福[1] 谢小立[2]水利论文5~%YE/?*Y j

水利论文(f&kT2{X"JN6Y

Author:水利论文 M!_0~6JKyB6@

水利论文xtoq$r d0?kK

MA Jun-fu[1] XIE Xiao-li[2]水利论文'w:{;L9`-oB

水利论文uA'|(wO(LL,h

作者单位:水利论文Hm6U;A9K

'p+~@ ];i)O0中国科学院亚热带农业生态研究所,长沙410125;中国科学院研究生院,北京100049中国科学院亚热带农业生态研究所,长沙,410125

8NX bX*gx8td9u0

wiSBAo0期 刊:

L;N4Vui oo-l0 水利论文 s3P x|Wp,n3\

水土保持学报

_ or"Tz3Q0

V r@6|,J(V|0Journal:水利论文&}(\(Z4b7Y[x.r/|&n

$C)u}q*aX0JOURNAL OF SOIL AND WATER CONSERVATION水利论文[ j2ta e3e4r\)Or

水利论文8}7E(T$S'PCU!JB1n

年,卷(期):

&i5bY$Fas$C u0 水利论文}QJs F!~W

2010, 24(1)

]o2{0An2hT0

k6nL9zIU0分类号:水利论文-Vw9p+D:h x;e

Y.`gf*iG%Jg0S157.2水利论文5j!G0w2U.K

水利论文$l'oM6U(yD

关键词:水利论文S$kVu*Ae!uu xxV

Z$~5gG1Q!_0红壤坡地

Ra9Ug4Y2Y!aQ0

5e JV%V6N%p*r"c-eGd0土地利用类型水利论文 fDpa1|(\.@)M:s

水利论文#^?%hA!PsY

地表径流量

n6@q S0mk(Q'V:r0Qk`0 水利论文3s9J,Ks:R

养分流失

[%lBU@4K0 水利论文)yp i6i7IlaoO

水份年水利论文![6XHtUF

4C@{,`M%sE6c^U2x$t0Keywords:

4XBN1WPA0 水利论文TuT+Uc0qj

red soil slope land水利论文fn%AD`.b6c8\

S3Img9\-G0land use type水利论文A;N!l-E{G:_ d:O,?

6m|l&N)br#_w N m0surface runoff

(gT0^+T'Mw3]d8G0

#l~4ig@3j(m;J6E0nutrient loss水利论文 ?Sf&x#z_

水利论文9R'[$TKY

different water years

$h/X]G r4T F0 水利论文 Sb9qVaG]p$f

机标分类号:水利论文@1\@UqWk5r

+k4w_/p{T0S15 S71

z;c j*zE9?M0

)^5We C,v6\ Qq7H0机标关键词:水利论文4D6R|E9X

水利论文,kc` wtu

红壤坡地 垫面 产流 物质 联动 Slope Land 年径流量 coefficient of variation 农作区 柑橘园 different 茶园 变异系数 significant variation coefficient tea interannual variation 差异显著 red soil land use水利论文? h(of-x8r-?O%]

水利论文n)R`:e(j

基金项目:水利论文t r;J6_f%M'~&B

水利论文%zQ6_ GO C$H)K

科技部科研项目水利论文&Ty#sli3~"on i

o3` G CE@[0坡地不同垫面产流及物质联动研究水利论文7C1W Y9kD q!Otp'n

水利论文#i6aTz2c

[期刊论文] 水土保持学报 --2010, 24(1)水利论文ho$zWF)f

]\$C9o%u Q~|)f/B0马军福 谢小立

;[yl4O|PH0

LX)` |W5HX y&b [N0基于红壤坡地3种土地利用类型连续5年地表径流量及养分流失的研究,结果表明:(1)不同水份年对不同利用方式的影响比较突出:柑橘园和茶园的径流量变化趋势极为相似;农作区变化差异显著,一直保持很高的径流量,其产流规律在...

rTbrD y0

9dt^3D3^O]0返回顶部互动百科相关词

vS$@:C_0
下一篇:降水特征与农作处理对坡耕地水土流失的动态研究 Dynamic Study on Soil and Water Loss in Different Rainfa
上一篇:典型黑土侵蚀区自然植被恢复措施水土保持功效研究 Effect of Natural Vegetation Recovery on Soil Erosion i
水利论文安徽省电信网友 [k0ey9cko] ip: 117.68.*.*
2017-02-20 02:53:47
Torii Hunter is one player they are  <a href="http://www.thejetsstoreonline.com/Black-54-Bruce-Carter-Womens-Jersey/"> Bruce Carter Jets Jersey</a> expected to go after.No matter if your first deck is jus <a href="http://www.thejetsstoreonline.com/Black-80-Wayne-Chrebet-Womens-Jersey/"> Wayne Chrebet Jets Jersey</a> t an 80 ft extension of the family room, you will start visualizing how your deck should look like.soup. Why is coaching popular? Coaching levels the playing field. Yet, this fact was revealed in the Qur'an  <a href="http://www.thejetsstoreonline.com/Black-71-Ben-Ijalana-Womens-Jersey/"> Ben Ijalana Jets Jersey</a> f
查看全部回复【已有1位网友发表了看法】

广告投放

广告投放