[1]刘娜娜,陈惠娟,孔德杰.宁夏盐池不同草地类型的土壤水分平衡研究[J].水土保持研究,2016,23(01):23-28.
　LIU Nana,CHEN Huijuan,KONG Dejie.Soil Moisture Budget in Different Types of Grasslands in Yanchi County of Ningxia Arid Zone[J].Research of Soil and Water Conservation,2016,23(01):23-28.
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宁夏盐池不同草地类型的土壤水分平衡研究

《水土保持研究》[ISSN:1005-3409/CN:61-1272/P] 卷: 23 期数: 2016年01期 页码: 23-28 栏目: 出版日期: 2016-02-28
Title:
Soil Moisture Budget in Different Types of Grasslands in Yanchi County of Ningxia Arid Zone
作者:
刘娜娜1, 陈惠娟1, 孔德杰2,3,4
1. 宁夏农业勘查设计院, 银川 750002;
2. 宁夏农林科学院 农业生物技术研究中心, 银川 750002;
3. 西北农林科技大学 农学院, 陕西 杨凌 712100;
4. 陕西省循环农业工程技术研究中心, 陕西 杨凌 712100
Author(s):
LIU Nana1, CHEN Huijuan1, KONG Dejie2,3,4
1. Ningxia Agricultural Institute of Survey Design, Yinchuan 750002, China;
2. Agricultural Biotechnology Center of Ningxia Academy of Agriculture and Forestry Sciences, Yinchuan 750002, China;
3. College of Agronomy, Northwest A & F University, Yangling, Shaanxi 712100, China;
4. Research Center of Recycle Agriculture Engineering and Technology of Shaanxi Province, Yangling, Shaanxi 712100, China
关键词:
土壤水分; 草地类型; 贮水量; Surfer
Keywords:
soil moisture; grassland types; moisture storage; Surfer
分类号:
S152.7
摘要:
以位于农牧交错地带盐池县的6种不同草地类型土壤含水量为研究对象，通过监测各种类型草地0—100 cm土层质量含水量的动态变化情况，运用Surfer制图软件分析牧草生育期土壤水分的空间分布特征；利用土壤水分平衡方程和土壤分层贮水量公式计算不同草地0—100 cm土层总贮水量变化情况，结合试验地生长季降水量变化，分析了不同草地类型土壤贮水量动态变化与蒸散量的变化规律，结果表明：降雨和植被类型是不同类型草地土壤水分动态变化的主要原因，沙丘土壤水分随降雨量变化较为明显；移栽柠条地土层剖面生育期水分变异系数最大，表明干旱时土壤失水较多，降雨充足时蓄水最多。因此应增加沙丘植被覆盖，对柠条、苜蓿、草地应适度进行放牧和刈割，控制植被生长，减少植被蒸腾蒸发，提高土壤水分固持能力，维持土壤水分的可持续发展。
Abstract:
Six types of grasslands in Yanchi County of Ningxia arid zone were chosen as the research sites. Soil moisture monitoring in the depths ranging from 0 cm to 100 cm in 6 types grasslands was carried out, and spatial characteristics of soil moisture was analyzed by Surfer software. The total soil moisture storage of different depth was calculated by soil water balance equation, moreover, the change of soil moisture storage and evapotranspiration were analyzed based on the precipitation in the test plots of different grasslands in growing season. The results showed that rainfall and vegetation types were the main reason for soil moisture dynamic variation in different types in Ningxia farming pastoral zone, soil moisture variation of sand dune is more intense, and the coefficient of variation changed a lot in the field of transplanting Caragana korshinskii, indicating that soil water loss was the highest in the drought condition, and most moisture was maintained under the rainfall. So we should increase vegetation coverage of sand dune, and perform moderate mowing and grazing of eugenic vegetation in order to reduce vegetation evapotranspiration, and to keep the soil water resources to be long-term stable and sustainable.

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备注/Memo

收稿日期:2015-08-23;改回日期:2015-09-13。
基金项目:宁夏回族自治区科技攻关项目“宁夏中部地区植被恢复与水土资源可持续利用关键技术研究与示范”（KGZ-08-07-09）
作者简介:刘娜娜(1980-),女,陕西韩城人,硕士,助理工程师,主要从事农业土壤学研究。E-mail:lnne_mail@sina.com.cn
通讯作者:孔德杰(1982-),男,河南淮阳县人,硕士,助理研究员,主要从事农田水土高效利用研究。E-mail:kdj1982@126.com

更新日期/Last Update: 1900-01-01