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宁夏半干旱黄土丘陵区不同土地利用类型土壤贮水量变化分析
引用本文:董立国,李生宝,蒋齐,张源润,蔡进军,王月玲,季波,潘占兵,许浩,马璠.宁夏半干旱黄土丘陵区不同土地利用类型土壤贮水量变化分析[J].干旱区资源与环境,2011(10):184-189.
作者姓名:董立国  李生宝  蒋齐  张源润  蔡进军  王月玲  季波  潘占兵  许浩  马璠
作者单位:宁夏农林科学院荒漠化治理研究所
基金项目:"宁夏自然科学基金(NZ0969)";"国家"十一五"科技攻关计划重大项目(2006BAC01A07)";"国家自然科学基金(40861028)"资助
摘    要:气候变化加剧了黄土丘陵区生态建设的严峻性,通过农地、林地、草地等土地利用类型0-20cm、20-100cm和20-180cm土壤贮水量的分析,研究得出:(1)不同土地利用类型土壤贮水量变化趋势相似,与降雨具有极大的相关性,都是在土壤解冻后下降,然后随着雨季的到来逐步升高,或者升高后在降低的趋势,主要以"V"型为主进行波...

关 键 词:黄土丘陵区  土壤贮水量  土壤水分  宁南山区  土地利用类型

Soil moisture storage of different land use types in Ningxia semi-arid loess hilly area
DONG Liguo,LI Shengbao,JIANG Qi,ZHANG Yuanrun,CAI Jinjun,WANG Yueling,JI Bo,PAN Zhanbin,XU Hao,MA.Soil moisture storage of different land use types in Ningxia semi-arid loess hilly area[J].Journal of Arid Land Resources and Environment,2011(10):184-189.
Authors:DONG Liguo  LI Shengbao  JIANG Qi  ZHANG Yuanrun  CAI Jinjun  WANG Yueling  JI Bo  PAN Zhanbin  XU Hao  MA
Institution:Fan(Institute of Desertification Control,Ningxia Academy of Agriculture and Forestry Science,Yinchuan 750002,P.R.China)
Abstract:Ecological construction is exacerbated by climate change in Loess Hilly Area.Soil water storage of agricultural land,woodland and grassland were studied with soil layer 0-20cm,20-100cm and 20-180cm.The result showed that(1)The change trends of soil water storage for different land use types was similar,it has great relevance with rainfall,and decreased after soil thawing,and then gradually increased with the arrival of the rainy season,or decreased after the increase.It showed "V"-type trend.(2) A small amount of land disturbance could maintain a large amount of soil water storage.Soil water storage loss was relatively large on artificial plowing.Autumn crop growth and development adapted regional climate changes.(3)Site preparation for afforestation changed the small environment,and was conducive to the accumulation of soil moisture,there by facilitaty for afforestation.Pure Sea Buckthorn was not conducive to the resumption of regional ecological environment.(4) Alfalfa and natural grassland of slope with level trench soil water storage were higher than steep slope.(5)The regional rainfall levels could compensate for soil water consumption in soil layer 180cm.According to rainfall variation trend,we could take a variety of measures for saving water and controlling water,and improve the regional water use efficiency.
Keywords:soil water storage  soil moisture content  loess hilly area  land use types  mountain area of southern Ningxia
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