Results 11 to 20 of about 675 (112)

喀斯特槽谷区侵蚀坡面的土壤质量评价及障碍因子

Shuitu Baochi Xuebao
[目的] 为准确评价喀斯特槽谷区顺/逆层坡侵蚀坡面的土壤质量特征,筛选出适用于该地区的土壤质量评价方法,探析限制其土壤质量的障碍因子。[方法] 以重庆市青木关喀斯特槽谷区顺/逆层坡面的5种典型土地利用类型(林地、草地、裸地、玉米地、辣椒地)为研究对象,利用主成分分析法结合Norm值建立评价指标最小数据集(minimum data set,MDS),并通过非线性土壤质量评价方法和隶属度函数对喀斯特槽谷区顺/逆层坡面的土壤质量进行评价。[结果] (1)喀斯特槽谷区土壤质量评价指标最小数据集(MDS ...
石海龙, 张林星, 甘凤玲, 蒲俊兵, 苟俊菲, 刘涓   +5 more
doaj   +1 more source

喀斯特马尾松林下路径区域的土壤特性差异与水分空间变异性

Shuitu Baochi Xuebao
[目的] 为探讨喀斯特地区林下社会活动中人为踩踏影响下路径土壤的空间变异性。[方法] 以喀斯特森林小径区域为研究对象,在月尺度范围内定点定期采样,运用地统计学对在干旱和降水条件下0—20 cm土层土壤特性时空变异特征及其分布格局进行分析。[结果] 人为踩踏能通过加深土壤固结程度和土壤颗粒聚合能力,改变土壤表层(0—15 cm)下垫面结构;喀斯特森林小径土壤含水量空间分布呈中等变异特征,小径中央土壤含水量降水条件下是干旱条件下的1.12倍,其小径中央(32.68%)＞小径边缘(28.46%)＞森林内部 ...
李雨涵, 陈浩, 冯娜, 李瑶, 刘冬冬   +4 more
doaj   +2 more sources

喀斯特坡地次生林常见树木蒸腾特征及其对气象因子的响应

Shuitu Baochi Xuebao
目的 探究喀斯特坡地次生林常见树木蒸腾特征及其对气象因子的响应规律。方法 采用热扩散探针法(TDP)对中国科学院普定喀斯特生态系统观测研究站内构树、栾树、乌桕、臭椿、苦楝树、香椿和盐肤木进行监测，同时对气象因子进行监测，分析树木蒸腾变化特征与气象因子的关系。结果 1) 构树、栾树、乌桕、臭椿、苦楝树、香椿和盐肤木的日平均蒸腾量分别为(4 409.97±3 260.63)、(6 611.27±5 629.57)、(3 956.32±2 498.50)、(2 984.98±2 039.09)、(6 300 ...
桂鈺翔, 彭韬, 戴全厚, 李焱秋
doaj   +1 more source

Nectar robbing by bees affects the reproductive fitness of the distylous plant Tirpitzia sinensis (Linaceae)

Ecology and Evolution, Volume 13, Issue 11, November 2023., 2023
Nectar robbing could directly and indirectly decrease the female fitness of Tirpitzia sinensis, and different morphs have evolved different defense mechanisms in response to nectar robbing pressure. Abstract Nectar robbing can affect plant reproductive success directly by influencing female and male fitness, and indirectly by affecting pollinator ...
Xiaoyue Wang, Renxiu Yao, Xiaoqin Lv, Yin Yi, Xiaoxin Tang   +4 more
wiley   +1 more source

Climate change affects Galliformes taxonomic, phylogenetic and functional diversity indexes, shifting conservation priority areas in China

Diversity and Distributions, Volume 29, Issue 3, Page 409-422, March 2023., 2023
Abstract Aim Comprehensive biodiversity protection necessitates the consideration of multiple indexes of diversity, and how the distribution patterns of priority areas may shift under climate change. Galliformes is a globally endangered avian order vulnerable to climate change that provide an important indicator for wildlife conservation effectiveness.
Bin Wang, Weijia Ye, Yu Xu, Xue Zhong, Jindong Zhang, Nan Yang, Biao Yang, Caiquan Zhou   +7 more
wiley   +1 more source

Size‐dependent and environment‐mediated shifts in leaf traits of a deciduous tree species in a subtropical forest

Ecology and Evolution, Volume 12, Issue 1, January 2022., 2022
Plant size and environment independently shaped the variations in intraspecific leaf traits of Clausena dunniana in the subtropical karst forest of Maolan. Compared with plant size, the environment played a more critical role in shaping intraspecific leaf trait variations, and potentially also the underlying individual‐level plant resource‐use ...
Jie Zheng, Ya Jiang, Hong Qian, Yanjiao Mao, Chao Zhang, Xiaoxin Tang, Yi Jin, Yin Yi   +7 more
wiley   +1 more source

Characteristics of Plantar Pressure Distribution in Diabetes with or without Diabetic Peripheral Neuropathy and Peripheral Arterial Disease

Journal of Healthcare Engineering, Volume 2022, Issue 1, 2022., 2022
Background. Excessive plantar pressure leads to increased risk of diabetic foot ulcers. Diabetic peripheral neuropathy (DPN) and peripheral arterial disease (PAD) have been considered to be associated with alterations in gait and plantar pressure in diabetic patients. However, few studies have differentiated the effects with each of them. Objective. To
Zijun Cao, Fang Wang, Xuemei Li, Jun Hu, Yaoguang He, Jianguo Zhang, Gin-Shin Chen   +6 more
wiley   +1 more source

Does sensitive skin represent a skin condition or manifestations of other disorders?

Journal of Cosmetic Dermatology, Volume 20, Issue 7, Page 2058-2061, July 2021., 2021
Abstract Sensitive skin or cutaneous sensory syndrome is defined as a skin condition that is hypersensitive to stimuli, presented with itching, irritant, erythema, and dryness. However, is it associated with more than impairment of epidermal functions, psychological stress and topical medication or products?
Lihong Chen, Jie Zheng
wiley   +1 more source

Single‐nucleotide polymorphism rs4142441 and MYC co‐modulated long non‐coding RNA OSER1‐AS1 suppresses non‐small cell lung cancer by sequestering ELAVL1

Cancer Science, Volume 112, Issue 6, Page 2272-2286, June 2021., 2021
Our results demonstrated that long non‐coding RNA OSER1‐AS1 performed tumor suppressive function by forming an RNA‐protein complex with ELAVL1 and sequester it from binding and stabilizing its target mRNAs, and it may serve as a potential prognosis markers for patients with NSCLC. Abstract Single‐nucleotide polymorphisms (SNP) and long non‐coding RNAs (
Weijia Xie, Youhao Wang, Yao Zhang, Ying Xiang, Na Wu, Long Wu, Chengying Li, Tongjian Cai, Xiangyu Ma, Zubin Yu, Li Bai, Yafei Li   +11 more
wiley   +1 more source

Development and Validation of Near‐Infrared Methods for the Quantitation of Caffeine, Epigallocatechin‐3‐gallate, and Moisture in Green Tea Production

Journal of Analytical Methods in Chemistry, Volume 2021, Issue 1, 2021., 2021
The quality of tea leaves (e.g., their color, appearance, and taste) can be directly influenced by the tea production process, which is closely connected with the content of a number of chemical components formed during the production of the tea leaves.
Shengsheng Zhang, Yamin Zuo, Qing Wu, Jiao Wang, Lin Ban, Huili Yang, Zhiwen Bai, Alessandro Buccolieri   +7 more
wiley   +1 more source