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32篇 您的检索式:作者名="Heathman"
    题名 作者 年代 出处 被引量
1沂蒙山林区不同植物群落下土壤颗粒分形与孔隙结构特征显示文摘为探索人为活动干扰下植物群落变化对土壤物理结构特征的影响,运用土壤分形学和水文学原理与方法研究沂蒙山林区7种植物群落下的土壤颗粒组成、分形维数、土壤孔隙度及其相关性。结果表明:在长期农业耕作等人为干扰下,玉米作物、板栗经济林和灌草丛群落下的土壤颗粒呈粗粒化特征,分形维数显著降低,土壤总孔隙度和毛管孔隙度下降,非毛管孔隙度增加,土壤物理结构呈现退化状态;而处于长期封禁保护下的森林群落,土壤颗粒分形维数较大,粉黏粒等细粒物质的含量较高,孔隙结构状况较好。研究区土壤颗粒组成具有石质山地典型的粗骨土结构特征,森林群落能显著增加土壤中粉黏粒等细粒物质的含量和对土壤空隙的填充能力,是其改善土壤物理结构的分形学机制。土壤颗粒分形维数与土壤粉黏粒含量、总孔隙度和毛管孔隙度之间存在明显的线性正相关,而与土壤砂粒含量和非毛管孔隙度具有线性负相关关系,它能较好表征植物群落变化对土壤颗粒组成和孔隙状况的影响,因而可作为评价土壤物理结构质量的一项综合性指标。刘霞 姚孝友 张光灿 胡续礼 Heathman G C 2011林业科学2011,47,8:22
2Test of a non-uniform mixing model for transfer of herbicide to surface runoff显示文摘Heathman G C Ahuja L R Baker J L 1986Trans ASAE1986,29,45:1
3The transfer of soil surface-applied chemical to runoff显示文摘Heathman G C Ahuja L R Lethman O R 1985Trans ASAE1985,18,6:1
4Use of limited soil property data and modeling to estimate root zone soil water content显示文摘Patrick J Starks Gary C Heathman Lajpat R Ahuja 2000Journal of Hydrology2000,272,:1
5Use of limited soil property data and modeling to estimate root zone soil water content显示文摘Starks P J Heathman G C Ahuja L 2003Journal of Hydrology2003,272,:1
6The transfer of soil surface-applied chemicals to runoff显示文摘HEATHMAN G C AHUJA L R LEHMAN O R 1985Transactions of American Society Agriculture Engineering1985,28,19:1
7Fractal features of soil particle-size distribution as affected by plant commu- nities in the forested region of Mountain Yimeng, China 显示文摘Liu X Zhang G Heathman G C 2009Geoderma2009,154,1:1
8Fractal features of soil particle-size distribution as affected by plant communities in the forested region of Mountain Yimeng, China显示文摘Liu X Zhang G Heathman G C 2009Geoderma2009,154,:1
9Assimilation of surface soil moisture to estimate profile soil water content 显示文摘Gary C Heathman Patrick J Starks Lajpat R Ahuja 2003Journal of Hydrology2003,279,:1
10PK/PD and the stages of drug development: role of simulation 显示文摘CHIEN J Y FRIEDRICH S HEATHMAN M A 2005AAPS 32005,7,3:1
11Assimilation of surface soil moisture to estimate profile soil water content显示文摘Heathman G Starks P Ahuja L 2003Journal of Hydrology2003,279,:1
12Temporal stability of soil moisture profile 显示文摘Patrick J Starks Gary Heathman C 2005Journal of Hydrology2005,,:1
13Use of limited soil property data and modeling to estimate root zone soil water content显示文摘 Heathman G C Ahujab L R 2003Journal of Hydrology2003,272,:1
14Fractal features of soil particle-size distribution as affected by plant communities in the forested region of Mountain Yimeng, China显示文摘Xia Liu Guangcan Zhang Gary C. Heathman Yaqin Wang Chi-hua Huang 2009Geoderma2009,,1:1
15Fraetal features of soil particle-size distribution as affected by plant communities in the forested region of Mountain Yi- meng, China显示文摘Liu Xia Zhang Guangcan Heathman G C 2009Geoderma2009,154,12:1
16Evaluation of the AnnAGNPS Model for Atrazine Prediction in Northeast Indiana显示文摘Zuercher B W Flanagan D C Heathman G C 2011Transactions of the Asabe2011,54,3:1
17Use of limited soil property data and modeling to estimate root zone soil water content显示文摘STARKS P J HEATHMAN G C AHUJAB L R 2003Journal of Hydrology2003,272,:1
18Removing subjective judgment from wettability analysis aids displacement显示文摘HEATHMAN J MICHAEL WILSON J CANTRELL J H 2000IADC/SPE 591352000,,:1
19Fluids for drilling and cementing shallow water flows显示文摘Whitfill D L Heathman J Faul R R 2000SPE 629572000,,:1
20Field scale spatiotemporal analysis of surface soil moisture for evaluating point - scale in situ net- works显示文摘Heathman G C Cosh M H Han E 2012Geoderma2012,170,:1
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