[1]TIAN Tai-qiang,HE Bing-hui,HUANG Wei.Characteristics of Runoff and Sediment Production under Different Fertilization and Tillage Patterns in Three Gorges Reservoir Area[J].Research of Soil and Water Conservation,2014,21(01):61-65,70.
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Characteristics of Runoff and Sediment Production under Different Fertilization and Tillage Patterns in Three Gorges Reservoir Area
Research of Soil and Water Conservation[ISSN 1005-3409/CN 61-1272/P] Volume:
21
Number of periods:
2014 01
Page number:
61-65,70
Column:
Public date:
2014-02-28
- Title:
- Characteristics of Runoff and Sediment Production under Different Fertilization and Tillage Patterns in Three Gorges Reservoir Area
- Keywords:
- Three Gorges Reservoir Area; different fertilization; sediment; runoff
- CLC:
- S157.2
- DOI:
- -
- Abstract:
- In order to reduce soil and water loss in sloping fields and reduce agricultural non-point source pollution, based on the long term(2010—2012) in site runoff plots observation experiment with the treatments of CK(T0),combined application of manure and fertilizer(T1),chemical fertilizer(T2),chemical fertilizer with increasing fertilization(T3),and contour plowing with chemical fertilizer(T4) in the cropping of winter wheat-summer maize, the characteristic of runoff and eroded sediment under different fertilization and tillage patterns were studied. Result were as follows: (1) the runoff in May accounted for 16.39%～21.96%,and the erosion amount accounted for 12.53%～25.56% of the entire observation time,the minimum erosive rainfall is 20.5mm; (2) under different fertilization and tillage patterns,the rainfall,runoff volume and erosion rate showed a linear relationship(y=ax+b, a > 0),the erosion of changes was driven by runoff, fertilization affected soil erosion and runoff by changing the physical and chemical properties of and crop ground cover; (3) changes of the total runoff and erosion had the same trend in different fertilization and tillage patterns, total amount of runoff and erosion showed in different fertilization levels as tbe order of T0 > T1 > T3 > T2,total amount of runoff and erosion amount showed different tillage modes as the sequence of T2 > T4.The result suggested that contour plowing and chemical fertilizer could significantly reduce runoff and soil erosion,which is an effective way to control soil erosion in Three Gorges Reservoir Area.
- References:
-
[1] 蒋协新,秦富,利明,等.英国农业支出政策及其经验(上)[J].世界农业,2002,282(10):13-15.
[2] 张代钧,许丹宇,任宏详,等.长江三峡水库水污染控制若干问题[J].长江流域资源与环境,2005,14(5):605-610.
[3] 孟春红,赵冰.三峡水库蓄水后的富营养养分化趋势分析[J].农业环境科学学报,2007,26(3):863-867.
[4] 曹彦龙,李崇明,阚平.重庆三峡库区面源污染评价与聚类分析[J].农业环境科学学报,2007,26(3):857-862.
[5] 李崇明,黄真理,张晟,等.三峡水库藻类"水华"预测[J].长江流域资源与环境,2007,16(1):1-6.
[6] 孟庆华,杨林章.三峡库区不同土地利用方式的养分流失研究[J].生态学报,2000,20(6):1028-1033.
[7] 曾繁富,张军,赵同谦,等.嵩坪河小流域降雨径流特征研究[J].水土保持学报,2010,24(2):40-43.
[8] 黄茹,黄林,何丙辉,等.三峡库区坡地林草植被阻止降雨径流侵蚀[J].农业工程学报,2012,28(9):70-75.
[9] 王万忠.黄土高原降雨特性与土壤流失关系的研究:关于侵蚀性降雨的标准问题[J].水土保持通报,1984,4(4):58-63.
[10] 侯喜禄,曹清玉.陕北黄土丘陵沟壑区植被减沙效益研究[J].水土保持通报,1990,10(4):33-40.
[11] 彭文英,张科利.不同土地利用产流产沙与降雨特征的关系[J]水土保持通报,2001,21(4):25-29.
[12] 王海斌.不同水土保持措施下径流小区降雨与产流产沙关系研究[J].水土保持研究,2011,18(5):63-66.
[13] 唐佐芯,王建文,王克勤.不同施肥水平下植草对坡地径流氮素流失的调控作用[J].水土保持学报,2012,26(1):12-16.
[14] 宋玥,张忠学.不同耕作措施对黑土坡耕地土壤侵蚀的影响[J].水土保持研究,2011,18(2):14-18.
[15] 贾莲莲,李占斌,李鹏,等.黄土区野外模拟降雨条件下坡面径流-产沙实验研究[J].水土保持研究,2010,17(1):1-4.
[16] 王晓东,张洪江,程金花,等.三峡库区森林植被坡面产流特性[J].水土保持研究,2008,15(1):1-3.
[17] 李朝霞.降雨过程中红壤表土结构变化与侵蚀特点[D].武汉:华中农业大学,2004.
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