Results 1 to 10 of about 368 (116)

A Method Study on Determination of Sediment Content in Water Samples Based on Self-made Differential Pressure Device [PDF]

open access: yes, 2022
[Objective] The method for quickly and accurately measuring sediment concentrations in water samples in the field based on differential pressure was studied.
Chen Lin   +5 more
core   +1 more source

Spatial-temporal Variation of Water Yield in Nanbei Panjiang River Basin Based on InVEST Model [PDF]

open access: yes, 2023
[Objective] The temporal and spatial variation characteristics of water yield and differences in the water yield function for different land use types, soil types, and topography in the Nanbei Panjiang River basin were analyzed in order to provide a ...
Chen Quan   +5 more
core   +1 more source

The Role of Microorganisms in the Geochemical Iron Cycle [PDF]

open access: yes, 2016
铁元素虽然只在地壳含量中位列第4,但却是地球上分布最广的变价金属元素之一,微生物介导的铁循环及其与生源要素碳、氮、氧和硫等耦合的氧化还原反应是微生物地球化学循环的重要驱动力.由于铁循环过程中氧化态三价铁Fe(Ⅲ)在环境p H条件下大多以不溶状态存在,因而由其参与的地球化学循环进程通常较为缓慢.研究表明,微生物在铁元素的地球化学循环过程中起着举足轻重的作用,并在该过程中参与矿物的生成与转化.近年来的最新研究发现,参与地球化学铁循环的微生物之间,微生物与矿物之间,以及矿物介导的微生物之间存在着多样的相互作用,
刘芳华   +5 more
core   +1 more source

Optimization of SCS-CN Model in a Mountainous Area on West Bank of Dianchi Lake [PDF]

open access: yes, 2023
[Objective] The mountain flood runoff on the west bank of Dianchi Lake was simulated and calculated in order to provide a scientific basis for constructing flood interception facilities, reducing mountain flood disasters, and protecting the water ...
Li Jinmei, Wang Jinliang, Zhou Jingchun
core   +1 more source

A Study on Carbon Fixation Capacity and Its Influencing Factors Based on InVEST Model at Wuhu City [PDF]

open access: yes, 2023
[Objective] The spatial and temporal distribution pattern of carbon storage at Wuhu City, Anhui Province from 2011 to 2021 were analyzed, and the influence of ecological environmental factors, topographic factors, meteorological factors, and land use ...
Chu Yunzhi   +9 more
core   +1 more source

Research Progress on Flavor Substances of Rice and Its Derivatives [PDF]

open access: yes, 2021
As the main grain product in China, the flavor and quality of rice have attracted much attention.Different varieties or different producing areas may give rice unique flavor.
FENG Tao   +3 more
core   +1 more source

Phosphorus adsorption and desorption characteristics and its response to soil properties of black soil under long-term different fertilization [PDF]

open access: yes, 2019
editorial reviewedObjective: Fertilizer is generally added to agricultural soil to meet the needs of crop production, but long-term over fertilization changes soil phosphorus (P) pool and soil properties.
Gao, HongJun   +7 more
core   +1 more source

广东不同母质水稻土供钾特性的评价

open access: yesShuitu Baochi Xuebao, 2004
应用生物耗竭法并结合模拟试验综合评价了广东5种主要母质发育水稻土的供钾特性。研究结果表明:(1)2mol/L冷HNO3法提取的有效钾与水稻吸钾量间的相关性最好,建议用2mol/L冷HNO3法提取的钾来评价土壤的供钾状况。(2)1mol/L沸HNO3法提取的非交换性钾含量在耗竭后高于耗竭前的水平,与水稻吸钾量相关性很小或呈负相关,不适宜用来评价耗竭土壤。(3)广东5种主要母质发育的水稻土供钾能力大小顺序为:三角洲沉积物发育水稻土>花岗岩发育水稻土>砂页岩发育水稻土>石灰岩发育水稻土>玄武岩发育水稻土 ...
高淑涛 李华兴 郭庆荣
doaj   +2 more sources

Distribution Characteristics and Ecological Risk Assessment of Heavy Metals in Typical Soil Profiles of Muchuan County, Sichuan Province [PDF]

open access: yes, 2023
BACKGROUNDSoil is a precious resource for human survival and social development. The quality of the soil environment is impacted by a variety of issues due to the social economy’s rapid expansion, and the issue of heavy metal contamination in farmed land
Bixia LIAO, Ling HE, Wenling SHEN
core   +1 more source

Long-term straw incorporation significantly reduced subsoil organic carbon stock in cinnamon soil [PDF]

open access: yes, 2020
peer ...
Xu, Hu   +5 more
core   +1 more source

Home - About - Disclaimer - Privacy