Results 41 to 50 of about 10,708 (161)
Shuitu Baochi Xuebao, 2020 土壤饱和导水率（Ks）是反映土壤入渗性能与土壤持水能力的重要参数，为探究流域尺度下土壤Ks的空间分布特征及影响因素，更好地掌握土壤水文过程与调节机理，选取晋西北黄土丘陵区朱家川流域横向梯度（上游、中游、下游）不同土地利用方式下的土壤（70个样点）为研究对象，采用定水头法测定土壤Ks，并获取样点地形因子和其他土壤理化性质，通过建立土壤Ks偏最小二乘回归模型（PLSR），分析影响土壤Ks空间分布格局的主要因素。结果表明：（1）除土壤容重和砂粒含量为弱变异外，区域土壤理化性质其余因子均为中等变异 ...
杨震, 黄萱, 佘冬立
doaj
, 2019 正负地形可通过源汇过程对水、土资源进行再分配，影响着山区的人口分布，有待深入研究。获取正负地形数据，运用6个指标和多元逐步回归方法，分析贵州高原山区正负地形特征及其对人口分布的影响。研究表明：①贵州高原山区的正负地形结构异质性明显。蚕食度、深切度、平均粗糙度比、形状指标、匀度指数、破碎度的平均值分别为1.07、371m、 1.01、3.40、325和3.34。表明正地形被负地形蚕食明显、切入深度大，正、负地形的粗糙度基本相当，正负地形景观斑块呈现形状不规则、面积不均匀的破碎状态。6个正负地形指标中 ...
周旭 +6 more
core
Beyond Motivation: Modeling the Predictive Role of L2 Pride in Informal Digital Learning of English
International Journal of Applied Linguistics, Volume 35, Issue 4, Page 1938-1952, November 2025.ABSTRACT This study investigates the role of second language (L2) pride—an understudied affective factor—in shaping learners’ language learning motivation and involvement with informal digital learning of English (IDLE). Drawing on questionnaire data from 1388 Chinese university EFL students, the study employs structural equation modeling to examine ...
Minlin Minny Zou +3 more
wiley +1 more source
日本の低地に分布する泥炭土の土壌生成論に対する提言 [PDF]
, 2019 首都大学東京, 2019-03-25, 博士（理学 ...
Morishita Mizuki
core +1 more source
Functional Ecology, Volume 39, Issue 10, Page 2889-2904, October 2025.Read the free Plain Language Summary for this article on the Journal blog. Abstract In the Southwest Australian Biodiversity Hotspot, the greatest plant species diversity tends to occur on the most phosphorus (P)‐impoverished soils. Many plant species in this P‐impoverished environment release root carboxylates that mobilise soil P which is a more ...
Xue Meng Zhou +5 more
wiley +1 more source
太子河源头水源涵养林不同植被类型矿质态氮流失特征及其对环境因子的响应
Shuitu Baochi Xuebao, 2017 以太子河源头水源涵养林为研究对象，分析不同植被类型地表径流和壤中流的氮流失特征，运用冗余分析和偏冗余分析对氮流失特征与环境因子之间的关系进行分析，并对其主要影响因子进行定量分解，探寻太子河源头水源涵养林氮流失特征的关键影响因子。结果表明：不同植被类型地表径流和壤中流硝态氮是氮流失的主要形态，地表径流硝态氮的浓度是铵态氮浓度的1.5倍，壤中流硝态氮的浓度是铵态氮浓度的20.5倍。无论是地表径流还是壤中流铵态氮和硝态氮流失浓度的大小顺序均为人工林>杂木林>次生林。受径流量和壤中流量的影响 ...
王, 荣湘民, 李法云, 范志平
doaj
The Spatio-temporal Evolution of NDVI in the Three Gorges Reservoir Area Driven by the Synergistic Effect of two Factors over the Past 21 Years [PDF]
[Objective] To clarify the spatio-temporal characteristics of vegetation evolution in the Three Gorges Reservoir Area, and to quantitatively analyze the relationships between vegetation and key determinants, including climate, terrain, and human ...
LI Cheng +5 more
core +1 more source
, 2008 Hilly and mountainous areas occupy approximately 70% of Japan, and the area of farmland in these regions is decreasing ; these areas are defined as those from the outer plains to the mountains.
植山 秀紀
core +2 more sources
New Phytologist, Volume 248, Issue 2, Page 690-705, October 2025.Summary Abscisic acid (ABA) induces stomatal closure, reducing transpirational water loss, a critical adaptation for agriculture under drought. However, ABA is often viewed cautiously as stomatal closure limits CO2 uptake for photosynthesis and growth.
Jinghui Liu +4 more
wiley +1 more source
GRASP OF THE SNOW DEPTH DISTRIBUTION IN THE DAM BASIN USING THE AIRBORNE LASER SCANNING [PDF]
, 2010 To clarify the estimation error of snow depth spatial distribution with different DEM mesh sizes, airborne laser scanning during two periods (ground surface exposure and snow peak) and a snow depth survey were conducted in the Jozankei Dam catchment area
中津川 誠 +5 more
core +1 more source