人民黄河
人民黃河
인민황하
Yellow River
2015年
9期
14-16
,共3页
暴雨洪水%高含沙洪水%超渗产流%降雨强度%河口镇-龙门区间%黄土高原
暴雨洪水%高含沙洪水%超滲產流%降雨彊度%河口鎮-龍門區間%黃土高原
폭우홍수%고함사홍수%초삼산류%강우강도%하구진-룡문구간%황토고원
storm flood%high sediment concentration flood%runoff generation over infiltration%precipitation intensity%Hekouzhen-Longmen reach%Loess plateau
黄河中游河口镇—龙门区间属黄土高原区，是黄河流域水土流失最为严重的地区，也是黄河暴雨的多发区和主要产沙区。该区域的降雨产流方式属于典型的超渗产流，影响产流量和洪峰流量的主要因素是降雨强度，相同的日降雨量，时空分布不同，所产生的洪水量级也不同，不能用月或年的降雨量与径流量的相关关系来分析该区水沙关系的变化。随着水土保持等人类活动的影响，一般降雨情况下的径流量和来沙量明显减少，但当发生稀遇的大暴雨时，该区间仍可能出现大流量高含沙洪水。
黃河中遊河口鎮—龍門區間屬黃土高原區，是黃河流域水土流失最為嚴重的地區，也是黃河暴雨的多髮區和主要產沙區。該區域的降雨產流方式屬于典型的超滲產流，影響產流量和洪峰流量的主要因素是降雨彊度，相同的日降雨量，時空分佈不同，所產生的洪水量級也不同，不能用月或年的降雨量與徑流量的相關關繫來分析該區水沙關繫的變化。隨著水土保持等人類活動的影響，一般降雨情況下的徑流量和來沙量明顯減少，但噹髮生稀遇的大暴雨時，該區間仍可能齣現大流量高含沙洪水。
황하중유하구진—룡문구간속황토고원구，시황하류역수토류실최위엄중적지구，야시황하폭우적다발구화주요산사구。해구역적강우산류방식속우전형적초삼산류，영향산류량화홍봉류량적주요인소시강우강도，상동적일강우량，시공분포불동，소산생적홍수량급야불동，불능용월혹년적강우량여경류량적상관관계래분석해구수사관계적변화。수착수토보지등인류활동적영향，일반강우정황하적경류량화래사량명현감소，단당발생희우적대폭우시，해구간잉가능출현대류량고함사홍수。
Hekouzhen-Longmen reach on the middle reaches of the Yellow River belongs to Loess plateau area. This region is the most serious soil erosion area,as well as the storm and the main sediment producing area. Since this region is the typical runoff generation over infiltration area,the precipitation intensity is the main factor affecting the runoff discharge and peak flow. Due to the different spatial and temporal distributions,the magnitudes of flood vary greatly even under the same daily precipitation,no mention to analyze the relationship of water and sediment using the correlation between monthly or annual precipitation and runoff. The amount of runoff and sediment under general rainfall reduced with the influences of human activities such as soil and water conservation. However,it is still possible to have a big flood with high sediment concentration in this area when rare strong storm happened.
