防护林科技
防護林科技
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PROTECTION FOREST SCIENCE AND TECHNOLOGY
2013年
7期
23-26
,共4页
张玉柱%俞冬兴%曹志伟%李朝晖%高野
張玉柱%俞鼕興%曹誌偉%李朝暉%高野
장옥주%유동흥%조지위%리조휘%고야
土壤入渗%林地土壤%地表径流%黑龙江省中西部
土壤入滲%林地土壤%地錶徑流%黑龍江省中西部
토양입삼%임지토양%지표경류%흑룡강성중서부
soil infiltration%forest soil%runoff%midwestern Heilongjiang Province
选择黑龙江省中西部典型土壤类型作为研究对象,通过对土壤水分入渗率的测定,各典型土壤类型入渗特征及影响因素进行分析,结果表明:该区域土壤水分入渗率总体表现由大到小依次为风沙土、黑钙土、黑土。土类类型决定了土壤入渗率的级别;森林植被能减少土壤容重,增大土壤孔隙度和贮水量,进而增加土壤入渗能力;坡位对稳渗率的影响表现为由坡上部到坡下部稳渗率逐渐提高;土壤含水率与初始入渗率和稳渗时间呈负相关。
選擇黑龍江省中西部典型土壤類型作為研究對象,通過對土壤水分入滲率的測定,各典型土壤類型入滲特徵及影響因素進行分析,結果錶明:該區域土壤水分入滲率總體錶現由大到小依次為風沙土、黑鈣土、黑土。土類類型決定瞭土壤入滲率的級彆;森林植被能減少土壤容重,增大土壤孔隙度和貯水量,進而增加土壤入滲能力;坡位對穩滲率的影響錶現為由坡上部到坡下部穩滲率逐漸提高;土壤含水率與初始入滲率和穩滲時間呈負相關。
선택흑룡강성중서부전형토양류형작위연구대상,통과대토양수분입삼솔적측정,각전형토양류형입삼특정급영향인소진행분석,결과표명:해구역토양수분입삼솔총체표현유대도소의차위풍사토、흑개토、흑토。토류류형결정료토양입삼솔적급별;삼림식피능감소토양용중,증대토양공극도화저수량,진이증가토양입삼능력;파위대은삼솔적영향표현위유파상부도파하부은삼솔축점제고;토양함수솔여초시입삼솔화은삼시간정부상관。
@@@@Selecting typical soil types in midwestern Heilongjiang Province as the research object ,through the deter-mination of soil water infiltration rate ,infiltration characteristics of typical soil types and influencing factors were analyzed ,the result shows that :the order of the overall performance of the soil infiltration rate in this region from large to small is :wind sand ,chernozem ,and black soil .Soil types which are the decisive factor for soil infiltration determines the level of the soil infiltration rate .Forest vegetation can reduce soil bulk density ,increase soil porosity and storage capacity ,thus increasing soil infiltration capacity .Influence of the slope position on the steady infiltra-tion rate appears that steady infiltration rate gradually increases from upper slope to the lower slope .Soil moisture content and initial infiltration rate and steady infiltration time is negatively correlated .