Results 11 to 20 of about 3,262 (152)
Matching expert range maps with species distribution model predictions
Conservation Biology, Volume 34, Issue 5, Page 1292-1304, October 2020., 2020 Abstract Species’ range maps based on expert opinion are a critical resource for conservation planning. Expert maps are usually accompanied by species descriptions that specify sources of internal range heterogeneity, such as habitat associations, but these are rarely considered when using expert maps for analyses.
Kumar Mainali +3 more
wiley +1 more source
Drivers of plant traits that allow survival in wetlands
Functional Ecology, Volume 34, Issue 5, Page 956-967, May 2020., 2020 A free Plain Language Summary can be found within the Supporting Information of this article. Abstract Plants have developed a suite of traits to survive the anaerobic and anoxic soil conditions in wetlands. Previous studies on wetland plant adaptive traits have focused mainly on physiological aspects under experimental conditions, or compared the ...
Yingji Pan +8 more
wiley +1 more source
Shuitu Baochi Xuebao, 2007 采集了太湖地区3种主要水稻土（白土、黄泥土和乌栅土）的原状土柱为供试土样，利用CT扫描技术，在不破坏土体结构的前提下，准确地得出了不同深度土壤剖面上各种大孔隙的数量、面积以及分布状况。结果表明，3种水稻土均以表层的大孔隙度最大，在30～40cm处达到一个最低点，再往下又呈波浪形变化。土柱各截面上大孔隙面积的变异系数随着深度的变化与大孔隙度相似，大孔隙度大的层次其变异系数也较大。等效直径越大的孔隙（〉5mm）在土壤不同深度下数量的变化也越大。表层上大直径（〉5mm）的大孔隙较多，在土壤剖面30 ...
吴华山, 陈效民, 陈粲
doaj +2 more sources
Shuitu Baochi Xuebao, 2023 为探明生物结皮如何改善土壤物理性质从而促进水土保持,针对黄土高原风沙土和黄绵土上发育的藓结皮,以无结皮为对照,原状取样后分别使用高分辨率CT扫描仪和高精度土壤贯入仪测定其孔隙性状与穿透阻力,并构建结构方程模型剖析生物结皮对土壤孔隙度和穿透阻力的作用途径。结果表明:藓结皮发育改变土壤孔隙特征参数,并显著提高表层0—2 cm土壤总孔隙度(p＝0.01),在此土层内,风沙土和黄绵土上藓结皮的总孔隙度比无结皮分别增加1.62,2.12倍,且藓结皮的孔隙度随土层深度增加呈指数降低。藓结皮和无结皮的土壤面孔率在0 ...
余星兴 +4 more
doaj
Water Conservation Function of Artificial Forests in Kubuqi Desert [PDF]
, 2023 [Objective] Research was conducted on understory litter and soil hydrological function for artificial forests in the forest protection station in the eastern section of the Kubuqi Desert.
Chen Hongwei +7 more
core +1 more source
Shuitu Baochi Xuebao, 2020 冻融是影响高寒地区土壤结构的重要物理因素，以青海湖流域高寒草甸作为研究对象，通过野外采集原状土柱、室内冻融循环模拟、CT扫描和图像解译等方法，研究冻融循环对高寒草甸冻胀丘和丘间地的土壤大孔隙结构特征的影响。结果表明，随着冻融循环次数的增加，高寒草甸冻胀丘和丘间地土壤大孔隙度均呈现"减小—增加—减小"的趋势，冻融循环对土壤大孔隙度的降低主要在第1次冻融循环内形成的，且大孔隙的平均等效直径、平均体积、平均分枝长度、分枝密度和节点密度的变化规律与大孔隙度变化规律基本一致 ...
赵云朵, 胡霞
doaj
Effect of Pore Formation on Mechanical Properties and Texture of Honey Peach Slices During Drying Process(水蜜桃片干燥过程中孔隙形成对其力学特性和质构的影响) [PDF]
Shipin kexue jishu xuebaoThe evolution of pore structures during drying plays a critical role in shaping the mechanical and textural properties of fruit and vegetable slices. The impact of pore formation on the mechanical properties and texture of honey peach (Prunus persica ...
ZHANG Bo(张博) +8 more
doaj +1 more source
鄂尔多斯盆地姬塬地区长6 储层矿物含量与孔隙度的线性关系 [PDF]
, 2019 矿物含量是影响储层物性的重要因素之一。为了较全面地分析不同类型矿物含量对储层孔隙度的影响，以鄂尔多斯盆地姬塬地区长6 砂岩储层为例，探索性地运用多元逐步线性回归法分析了石英含量（x1）、长石含量（x2）、岩屑含量（x3）、绿泥石含量（x4）、伊利石含量（x5）、高岭石含量（x6）、硅质含量（x7）以及铁方解石含量（x8）与孔隙度（y）的关系，建立了矿物含量（xi）与孔隙度（y）之间的回归模型：y = 21.131-0.086 x2-0.113 x3-0.554 x4-0.370 x5-0.199 x6 ...
李小燕
core
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT Porous NiTi alloys are widely used in biomedical and engineering fields. Using the PBF‐LB technique, the TPMS and Voronoi porous parts with a porosity of ∼67% and a minimum feature size of 0.15 ± 0.02 mm were fabricated. Although the bulk sample fabricated with the same parameters is defect‐free, μ‐CT reconstruction on the porous sample ...
Wen‐Hao Zeng +7 more
wiley +1 more source
On the Damage Tolerance of Diffusion Bonded Titanium–Aluminum Phase Biomimetic Composites
Rare Metals, Volume 45, Issue 2, February 2026.ABSTRACT The biomimetic design principles of natural structures involve the strategic integration of stiff and compliant phases to synergistically enhance strength and toughness. Its evolutionary refined natural armor, characterized by a specialized microarchitecture, enables superior damage tolerance.
Shuai Tong +10 more
wiley +1 more source