鸟类群落是农田生态系统的重要组成部分,对其结构特征的研究有助于为农田生物多样性保护提供理论参考。为揭示生态过滤机制对吉林省西部农田防护林繁殖鸟类群落结构的影响,于2022—2023年每年4月和6月,采用样点法对该区域中的繁殖鸟类群落进行调查,同步记录样点周边的环境变量,并运用联合物种分布模型(Joint species distribution models,JSDMs)分析环境因子与种间相互作用对鸟类群落的影响。共调查167个样点,记录鸟类17目36科65种。结果表明 ...
许永珊 +3 more
doaj +3 more sources
Analysis on Stoichiometric Characteristics of a Populus Alba L. var Pyramidalis Protective Forest in Alar Reclamation Area [PDF]
[Objective] The contents of C, N, P, and their ecological stoichiometry characteristic contained in foliage, branches, litter, and soil of different age grades of Populus alba L.
Ge Tingjin +5 more
core +1 more source
Protective Effect of Shelterbelt on Strip Fields in Southwest Margin of Taklimakan Desert [PDF]
[Objectives] The windbreak efficiency of shelterbelts with different permeability on strip fields at the edge of the oasis in the Taklamakan Desert was analyzed in order to provide theoretical guidance for sustainable development of local grid strip ...
Cai Kaixu +3 more
core +1 more source
Effects of Artificial Cyanobacterial Crust on Soil Wind Erosion Control in Arid Regions [PDF]
[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
Spatial and Temporal Changes in Soil Water Erosion in Baisha River Basin from 2007 to 2020 [PDF]
[Objective] The spatial-temporal variations of soil water erosion before and after the Wenchuan earthquake in the Baisha River basin of Dujiangyan City, Sichuan Province were assessed to support water source protection efforts and comprehensive control ...
Bao Yuhai +5 more
core +1 more source
Dynamic Monitoring of Soil and Water Loss at Wuding River Basin, a Typical Tributary of Middle Reaches of Yellow River [PDF]
[Objective] The distribution and dynamic characteristics of soil and water loss at Wuding River, a typical coarse sediment tributary in the middle reaches of the Yellow River, were analyzed in order to provide a scientific basis for soil and water ...
Zhang Dong, Zhao Hui, Zhao Yuan
core +1 more source
Temporal and Spatial Characteristics of Soil Erosion in Typical Counties of Black Soil Region Based on RUSLE [PDF]
[Objective] The spatiotemporal characteristics of soil erosion were analyzed in order to provide a reference for soil erosion control and evaluation of soil and water conservation benefits.
Fu Bin +6 more
core +1 more source
Characteristics of Changes in Factors Influencing Wind Erosion and Erodibility of Soils in Mu Us Sandland During Desertification Reversal [PDF]
[Objective] The influences of the desertification reversal process on soil wind erosion in the Mu Us sandland were studied in order to provide a scientific reference for the prevention and control of wind erosion and for ecological reconstruction in this
Feng Jiaxin +3 more
core +1 more source
Ecological Value of Multi-scale Cultivated Land Protection and Compensation Standards in Watersheds [PDF]
[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
由于气候条件干旱,合理平衡防护林与农田作物水分需求是河套灌区农田防护林林网体系建设的关键问题。为研究河套灌区典型农田防护林对农田作物水分来源的影响,选择河套灌区3种典型配置的防护林系统,测定并分析附近农田距农田边缘0.3,0.4,0.6,2 H处土壤含水率、土壤和作物茎秆水氢氧同位素值。结果表明:(1)7—9月各农田样地土壤含水率普遍较低,4,5行样地在近林端处土壤含水率均低于远林端处,8行样地各处土壤含水率没有明显差异。(2)各样地土壤水氢氧同位素随着土层深度的增加而贫化,其中,8行样地距农田边缘0 ...
王一心 +6 more
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