Arid
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
其他题名Soil moisture storage of different land use types in Ningxia semi-arid loess hilly area
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
来源期刊干旱区资源与环境
ISSN1003-7578
出版年2011
卷号25期号:10页码:184-189
中文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"型为主进行波动。(2)0-20cm土层中少量土地扰动能够保持较多的土壤贮水量,人工翻地对土壤水分损失较大,秋粮作物生长发育规律与区域气候变化规律适应性较强;(3)整地造林等措施,一定程度上改变了局部的小环境,利于土壤水分的蓄积,从而利于造林,沙棘纯林不利于区域生态环境的恢复。(4)水平沟隔坡苜蓿地土壤贮水量和水平沟隔坡天然草地土壤贮水量比自然坡面(陡坡)高;(5)区域降雨量能够补偿180cm土壤层次的土壤水分的消耗,依据降雨变化规律,采取各种保水控水节水措施,可以提高区域水分利用效率
英文摘要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.
中文关键词黄土丘陵区 ; 土壤贮水量 ; 土壤水分 ; 宁南山区 ; 土地利用类型
英文关键词soil water storage soil moisture content loess hilly area land use types mountain area of southern Ningxia
语种中文
国家中国
收录类别CSCD
WOS类目AGRICULTURE MULTIDISCIPLINARY
WOS研究方向Agriculture
CSCD记录号CSCD:4308817
资源类型期刊论文
条目标识符http://119.78.100.177/qdio/handle/2XILL650/226626
作者单位宁夏农林科学院荒漠化治理研究所, 银川, 宁夏 750002, 中国
推荐引用方式
GB/T 7714
董立国,李生宝,蒋齐,等. 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],2011,25(10):184-189.
APA 董立国.,李生宝.,蒋齐.,张源润.,蔡进军.,...&马璠.(2011).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.干旱区资源与环境,25(10),184-189.
MLA 董立国,et al."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".干旱区资源与环境 25.10(2011):184-189.
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