Results 1 to 10 of about 341 (64)

古尔班通古特沙漠南部风沙土粒度分布的空间异质性

open access: yes, 2009
系统采集古尔班通古特沙漠南部典型地段纵向沙垄和垄间地浅层风沙土(0~30 cm)样184件,运用常规粒度分析和地统计分析方法研究了古尔班通古特沙漠南部沙垄不同部位风沙土粒度组成、分布特征及空间变异。结果显示:风沙土机械组成的优势粒级是细沙和极细沙,不同地貌部位粒级组成差异明显。粘土和粉沙的含量为垄间地高于沙垄,背风坡高于迎风坡和垄顶。极细沙和细沙的含量是迎风坡最高,垄顶最低。中沙、粗沙和极粗沙的含量则是垄间地低于沙垄,垄顶最高。风沙土粗物质粒径φ1和平均粒径Mz从垄间地→背风坡→迎风坡→垄顶均由细变粗 ...
吴兆宁   +4 more
core  

古尔班通古特沙漠灌丛雾凇的生态水文学效应/Eco-Hydrological Effect of Shrub Rime in the Gurbantonggut Desert[J]

open access: yes, 2012
对生长于古尔班通古特沙漠东南边缘的梭梭和白梭梭两种植物的小枝与灌丛雾凇量进行了观测,并结合植被调查估算这两种植物对群落雾凇量的贡献量,探讨群落雾凇量与气象要素之间的关系.研究结果表明:在小枝水平上,白梭梭雾凇量是梭梭的1.5倍,但是在灌丛和群落尺度上,梭梭却是白梭梭的1.5和3.6倍.小枝粗细及其生长位置、灌丛形态结构和相对种群密度的差别共同造成两种植物雾淞量不同水平的差异.积雪、低风速、逆温和高湿是形成雾凇的最主要原因,日最高气温(Tma)与群落雾凇量(Rime)相关性最显著,它与日最小比湿(qmi ...
中国科学院新疆生态与地理研究所阜康荒漠生态站,新疆乌鲁木齐,830011   +6 more
core  

绿蟾蜍与大沙鼠同穴

open access: yes野生动物学报, 1998
新疆古尔班通古特沙漠是地表温度达40~70℃,相对湿度只有10%~30%的干旱地区,但沙漠上却发现需要水湿环境生活的绿蟾蜍.经观察,绿蟾蜍进入和生活在沙漠主要是依赖于大沙鼠的洞穴潮湿,并捕食洞中的各种蝇虫.
胡德夫, 贾泽信
doaj   +2 more sources

Ecological Protection Effects Provided by Sand Barriers in a Grassland Mining Area [PDF]

open access: yes, 2023
[Objective] The wind protection effectiveness of different sand barriers and their effects on surface soil particle size composition, soil nutrients and vegetation growth werer studied in order to provide a theoretical basis for the optimal selection of ...
Cong Longyu   +5 more
core   +1 more source

Fungal Diversity and Its Response to Environmental Factors During Decay Process of Salix Psammophila Sand Barriers [PDF]

open access: yes, 2023
[Objective] The effects of Salix psammophila sand barrier decay on the composition and diversity of fungal communities were analyzed in order to provide a theoretical basis for further research on the ecological function of fungal communities in desert ...
A Latengtaogesu   +3 more
core   +1 more source

Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions [PDF]

open access: yes, 2023
[Objective] The influence factors of artificial cyanobacterial crust on soil threshold wind velocity and wind erosion rate, and the effects of wind erosion prevention and control were analyzed, and the feasibility of using artificial cyanobacterial crust
Gao Liqian, Huang Minghui, Zhao Yunge
core   +1 more source

Characteristics and Response of Soil-leaf Ecological Stoichiometry of Suaeda Microphylla and Apocynum Pictum Under Different Salt Habitats [PDF]

open access: yes, 2023
[Objective] The change trend and main limiting factors of the ecological stoichiometric characteristics of soil and leaves in different saline habitats were analyzed in order to provide basic research data for the study of nutrient limiting factors and ...
Bahebe Lede   +5 more
core   +1 more source

Ecological Value of Multi-scale Cultivated Land Protection and Compensation Standards in Watersheds [PDF]

open access: yes, 2023
[Objective] The ecological value of cultivated land and compensation standards at multiple scales in a watershed was measured and analyzed in order to provide scientific reference for improving the compensation mechanism for cultivated land protection ...
Gao Jia, Wang Panpan
core   +1 more source

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