| The effects of land use on runoff and soil nutrient losses in a gully catchment of the hilly areas： implications for erosion control |
| |
| 作者姓名： | WANG Jun FU Bojie QIU Yang CHEN Liding CHEN Chen HU Baodong |
| |
| 作者单位： | 1.Beijing NormalUniversity，Beijing 100875，China;2.Land Consolidation and Rehabilitation Center，the M inistry of Land and Resources，Beijing 100035，China; 3.Research Center for Eco-EnvironmentalSciences，CAS，Beijing 100085，China;4.Portland State University，Oregon 97201，USA;5.Zhengzhou Riverway Adm inistration Department，Zhengzhou 450000，China |
| |
| 基金项目： | National Natural Science Foundation of China, No.40401001，No.40201003，Programme of Excellent YoungScientistsoftheM inistry ofLand and Resources |
| |
| 摘 要： | 1 Introduction Soiland waterlossisoneofthe worldwide environm entalissuesthreatening sustainable land use in semiarid areas.However,soiland water loss is highly variable in space and time,and its variability resultsfrom m any factorsoperating ata wide ran…
|
| 关 键 词： | 黄土丘陵 小流域 土地利用格局 径流 土壤养分 |
| 收稿时间： | 2005-02-18 |
| 修稿时间： | 2005-02-182005-05-10 |
The effects of land use on runoff and soil nutrient losses in a gully catchment of the hilly areas: implications for erosion control |
| |
| WANG Jun FU Bojie QIU Yang CHEN Liding CHEN Chen HU Baodong.The effects of land use on runoff and soil nutrient losses in a gully catchment of the hilly areas: implications for erosion control[J].Journal of Geographical Sciences,2005,15(4):396-404. |
| |
| Authors: | Wang Jun PhD Fu Bojie Qiu Yang Chen Liding Chen Chen Hu Baodong |
| |
| Affiliation: | (1) Beijing Normal University, 100875 Beijing, China;(2) Land Consolidation and Rehabilitation Center, the Ministry of Land and Resources, 100035 Beijing, China;(3) Research Center for Eco-Environmental Sciences, CAS, 100085 Beijing, China;(4) Portland State University, 97201 Oregon, USA;(5) Zhengzhou Riverway Administration Department, 450000 Zhengzhou, China |
| |
| Abstract: | Serious soilerosion is one ofthe majorissues threatening sustainable land use in semiarid areas,especially in the LoessPlateau ofChina.Understanding the effectsofland use on soiland water loss is important for sustainable land use strategy. Two sub-catchments: catchment A (CA) and catchment B (CB) with distinct land uses were selected to measure soil moisture,runoff and soil nutrientlossin Da Nangou catchmentofthe LoessPlateau ofChina.The effectsofland use patterns on runoffand nutrientlosseswere analyzed based on soilmoisture pattern by kriging and soilnutrients using multiple regression model.The resultsindicated thatthere were significantdifferencesin runoff yield and soil nutrient losses between the two sub-catchments. W ith similar land uses, the CA produced an average sediment yield of 49 kg ha-1 and 22.27 kg ha-1 during two storm events. M eanwhile,there was almostno runoffin the CB with dissimilarland uses during the same events. Bufferzonesshould be established to re-absorb runoffand to trap sedimentsin catchmentwith similar land use structure such as the CA.M oreover,land use managementstrategy aiming to increase the infiltration threshold ofhydrologicalresponse unitscould decrease the frequency ofrunoffoccurrence on aslopeand catchmentscale. |
| |
| Keywords: | soilerosion runoff soilnutrient land usepattern theLoessPlateau ofChina |
| 本文献已被 CNKI 维普 SpringerLink 等数据库收录！ |
| 点击此处可从《地理学报(英文版)》浏览原始摘要信息 |
|
点击此处可从《地理学报(英文版)》下载全文 |
