| 黔中喀斯特区典型土地利用方式及耕作措施的水土流失调控效应 |
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| 引用本文： | 李瑞,李勇,熊康宁,张弛,文雅琴.黔中喀斯特区典型土地利用方式及耕作措施的水土流失调控效应[J].水土保持通报,2017,37(6):136-140. |
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| 作者姓名： | 李瑞 李勇 熊康宁 张弛 文雅琴 |
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| 作者单位： | 贵州师范大学 喀斯特研究院, 贵州 贵阳 550001;国家喀斯特石漠化防治工程技术研究中心, 贵州 贵阳 550001,贵州省水土保持监测站, 贵州 贵阳 550002,贵州师范大学 喀斯特研究院, 贵州 贵阳 550001;国家喀斯特石漠化防治工程技术研究中心, 贵州 贵阳 550001,盘州市老厂国有林场, 贵州 盘州 553537,贵州师范大学 喀斯特研究院, 贵州 贵阳 550001;国家喀斯特石漠化防治工程技术研究中心, 贵州 贵阳 550001 |
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| 基金项目： | 国家自然科学基金项目“喀斯特区典型石漠化坡耕地覆盖措施水土流失调控效应”（31760243）；贵州省科技计划项目（黔科合社G字[2012]4008）；贵州省林业厅科研课题（黔林科合[2017]13号）；贵州师范大学2017年博士科研启动项目 |
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| 摘 要： | 目的]探讨贵州省中部喀斯特地区坡面几种典型土地利用类型及耕作措施对土壤水分、土壤侵蚀及坡面径流的调控效应,探明其差异显著性,为区域坡面水土流失防治提供参考。方法]采用野外径流小区定位观测法,以贵州省龙里县羊鸡冲小流域及贵阳修文龙场小流域为研究对象,开展坡面不同土地利用及耕作方式水土流失调控效应的研究。结果]林地、撂荒地及农耕地对土壤水分的调控效应差异不显著(p0.05),对土壤侵蚀的调控效应差异显著(p0.05)。3种土地利用方式对径流的调控效应相对复杂,具体为撂荒地显著低于林地(p0.05),但林地与农耕地间、撂荒地与农耕地间均无显著差异(p0.05);两种典型耕作措施研究结果显示,蔬菜种植(春甘蓝)对土壤水分、水土流失的调控效应优于玉米种植(单作),但两者对土壤水分及水土流失的调控效应均无显著差异(p0.05)。结论]黔中喀斯特区3种土地利用方式中,撂荒地水土流失调控效应显著高于林地和耕地;蔬菜种植水土流失调控效应高于玉米单作,但是两者无显著差异(p0.05)。
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| 关 键 词： | 喀斯特 土地利用类型 耕作措施 水土流失 调控效应 |
| 收稿时间： | 2017/4/17 0:00:00 |
| 修稿时间： | 2017/5/22 0:00:00 |
Regulating Effects on Soil and Water Loss of Typical Slope Land Use Patterns and Tillage Methods in Karst Area of Central Guizhou Province |
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| LI Rui,LI Yong,XIONG Kangning,ZHANG Chi and WEN Yaqin.Regulating Effects on Soil and Water Loss of Typical Slope Land Use Patterns and Tillage Methods in Karst Area of Central Guizhou Province[J].Bulletin of Soil and Water Conservation,2017,37(6):136-140. |
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| Authors: | LI Rui LI Yong XIONG Kangning ZHANG Chi and WEN Yaqin |
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| Institution: | Karst Research Institute, Guizhou Normal University, Guiyang, Guizhou 550001, China;National Engineering Research Center for Karst Rocky Desertification Control, Guiyang, Guizhou 550001, China,Guizhou Provincial Monitoring Station of Soil and Water Conservation, Guiyang, Guizhou 550002, China,Karst Research Institute, Guizhou Normal University, Guiyang, Guizhou 550001, China;National Engineering Research Center for Karst Rocky Desertification Control, Guiyang, Guizhou 550001, China,National Forest Farm of Laochang, Panzhou, Guizhou 553537, China and Karst Research Institute, Guizhou Normal University, Guiyang, Guizhou 550001, China;National Engineering Research Center for Karst Rocky Desertification Control, Guiyang, Guizhou 550001, China |
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| Abstract: | Objective] This study aimed to explore the regulating effects of different slope land use patterns and tillage methods on soil moisture and soil & water loss in karst area of Central Guizhou Province, and to provide references for soil & water conservation on karst hillslope.Methods] Yangjichong small watershed in Longli County, Longchang small watershed in Xiuwen County were took as the research areas, and the soil moisture, runoff and soil erosion were observed by using runoff plot method.Results] The soil moistures among forestland, abandoned land and farmland were not significantly different(p > 0.05), though soil erosion was significantly different(p < 0.05). The effects on runoff among forestland, abandoned land and farmland were relatively complicated:runoff on abandoned land was significantly lower than the ones on forestland(p < 0.05); while there were no significant differences between forestland and farmland, and between abandoned land and farmland(p > 0.05). The study results of 2 typical tillage methods on soil moisture and soil & water loss indicated that the regulating effects of vegetable planted(spring cabbage) were better than the one of corn planted(monocrop), however, there were no significant differences between these 2 tillage methods on soil moisture and soil & water loss(p > 0.05).Conclusion] Among the 3 different land use patterns, abandoned land had significant effect on soil and water conservation as compared to the ones of forestland and farmland in karst area of central Guizhou Province, and there was no significant difference between vegetable planted and planted corn. |
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| Keywords: | karst land use patterns tillage methods soil and water loss regulating effect |
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