重庆市四面山不同土地利用类型饱和导水率
作者:
基金项目:

国家林业局推广项目"三峡库区低山丘陵区水土保持型植物群落建设技术"([2012]42);国家自然科学资助项目(41271300,30900866)


Saturated Hydraulic Conductivity of Different Land Use Types in Simian Mountain of Chongqing City
Author:
  • 摘要
  • | |
  • 访问统计
  • |
  • 参考文献 [21]
  • |
  • 相似文献 [20]
  • |
  • 引证文献
  • | |
  • 文章评论
    摘要:

    [目的] 探讨不同土地利用类型和土壤理化性质对饱对导水率的影响。[方法] 采用定水头法测定四面山不同土地利用类型的饱和导水率,并运用回归分析,相关分析和主成分分析法分析其与土壤物理因子和有机质的关系,以及影响饱和导水率的主导因子。[结果] 各土地利用类型的平均饱和导水率均高于荒地,其顺序为:林地>农地>草地,林地中天然林饱和导水率大于人工林;饱和导水率随土层深度的增加呈负指数递减规律;饱和导水率与容重呈幂函数关系,与孔隙度呈正相关,与黏粒含量呈负相关;有机质含量的提高对饱和导水率有积极的促进作用。[结论] 影响饱和导水率的主导因子是容重、有机质、非毛管孔隙度和毛管孔隙度,其次,土壤机械组成对其也有一定影响。

    Abstract:

    [Objective] The research focuses on the effect of the different land use types and soil physicochemical properties on saturated hydraulic conductivity.[Methods] The constant-hydraulic head method was used to measure soil saturated hydraulic conductivity(Ks) for different land use types in Simian Mountain of Chongqing City. Regression analysis, correlation analysis and principle component analysis was used to analyze the relationship between Ks and soil physical factors and organic matter.[Results] The Ks was the lowest in wasteland, and the descending order was:forest land > farmland> grassland. The Ks in natural forest was higher than that in artificial forest, and it was negative exponential declined with the increase of the soil depth. There was a power function relationship between Ks and unit weight, and Ks was positively related to soil porosity and negatively related to clay content. The increase of organic matter could improve the Ks.[Conclusion] The unit weight, organic matter, non capillary poropsity and capillary poropsity are the main factors that influence Ks. Besides, soil mechanical composition also has some impact on Ks.

    参考文献
    [1] 秦耀东.土壤物理学[M].北京:高等教育出版社,2003.
    [2] 梁向锋,赵世伟,张扬,等.子午岭植被恢复对土壤饱和导水率的影响[J].生态学报,2009,29(2):636-642.
    [3] Wang C, Mc Keague J A, Topp G C. Comparison of estimated and measured horizontal ksat values[J].Canadian Journal of Soil Science, 1985,65(4):707-715.
    [4] Kanwar R S, Rizvi H A, Ahmed M, et al. Measurement of field-saturated hydraulic conductivity by using Guelph and velocity permeameters[J]. Transactions of the ASAE, 1989,32(6):1885-1890.
    [5] 胡克林,李保国,陈研.表层土壤饱和导水率的空间变异对农田水分渗漏的影响[J].水利学报,2006,37(10):1217-1223.
    [6] 牛海山,李香真.放牧率对土壤饱和导水率及其空间变异的影响[J].草地学报,1999,7(3):211-216.
    [7] 郑纪勇,邵明安,张兴昌.黄土区坡面表层土壤容重和饱和导水率空间变异特征[J].水土保持学报,2004,18(3):53-56.
    [8] 刘春利,邵明安.黄土高原坡地表层土壤饱和导水率和水分含量空间变异特征[J].中国水土保持科学,2009,7(1):13-18.
    [9] 吕殿青,邵明安,刘春平.容重对土壤饱和水分运动参数的影响[J].水土保持学报,2006,20(3):154-157.
    [10] 杜咏梅,孙西欢,毕远杰,等.不同入渗水头和容重作用下土壤饱和导水率变化特征研究[J].中国农村水利水电,2013(3):66-68.
    [11] 迟春明,王志春.沙粒对碱土饱和导水率和盐分淋洗的影响[J].2009,23(1):99-102.
    [12] 方堃,陈效民,张佳宝,等.红壤地区典型农田土壤饱和导水率及其影响因素研究[J].灌溉排水学报,2008,27(4):67-69.
    [13] 秦耀东,胡克林.大孔隙对农田耕作层饱和导水率的影响[J].水科学进展,1998,9(2):107-111.
    [14] 陈效民,王德建.太湖地区农田生态环境中土壤饱和导水率研究[J].水土保持通报,2000,20(5):11-12.
    [15] 彭舜磊,由文辉,沈会涛.植被群落演替对土壤饱和导水率的影响[J].农业工程学报,2010(11):78-84.
    [16] 高雪松,邓良基,张世熔.不同利用方式与坡位土壤物理性质及养分特征分析[J].水土保持学报,2005,19(2):53-56.
    [17] 尚熳廷,冯杰,丁荣浩,等.土壤大孔隙饱和导水率的数值模拟及实验研究[J].土壤通报,2012,43(1):15-19.
    [18] 王晓洋,陈效民,李孝良.不同盐渍化程度滨海盐土的饱和导水率[J].江苏农业科学,2011(4):446-448.
    [19] Carter M R.Soil quality for sustainable land management[J].Agronomy Journal, 2002,94(1):38-47.
    [20] 刘宇,张洪江,张友焱,等.晋西黄土丘陵区主要人工林土壤饱和导水率研究[J].水土保持通报,2013,33(4):302-306.
    [21] 宫渊波,麻泽龙,陈林武,等.嘉陵江上游低山暴雨区不同水土保持林结构模式水源涵养效益研究[J].水土保持学报,2004,18(3):28-32.
    引证文献
    引证文献 [1]
    网友评论
    网友评论
    分享到微博
    发 布
引用本文

阮芯竹,程金花,张洪江,杜士才,李世友,张福明,王贤,陈晓冰.重庆市四面山不同土地利用类型饱和导水率[J].水土保持通报,2015,35(1):79-84

复制
分享
文章指标
  • 点击次数:1125
  • 下载次数: 1430
  • HTML阅读次数: 0
  • 引用次数: 0
历史
  • 收稿日期:2014-01-12
  • 最后修改日期:2014-01-23
  • 在线发布日期: 2016-04-05