Results 11 to 20 of about 5,140 (160)

Geospatial data and web based tools for managing irrigation infrastructure expansion projects

open access: yesWorld Water Policy, Volume 9, Issue 3, Page 388-403, August 2023., 2023
Abstract Improving irrigation infrastructure is important for sustaining food security in developing countries like India. The irrigation potential of a system is estimated at the planning phase using conventional approaches. A mismatch in the irrigation potential planned to be created and the land suitable for cultivation can lead to a gap in the ...
Annie Maria Issac   +10 more
wiley   +1 more source

Uncorrected soil water isotopes through cryogenic vacuum distillation may lead to a false estimation on plant water sources

open access: yesMethods in Ecology and Evolution, Volume 14, Issue 6, Page 1443-1456, June 2023., 2023
Abstract Successful use of stable isotopes (δ2H and δ18O) in ecohydrological studies relies on the accurate extraction of unfractionated water from different types of soil samples. Cryogenic vacuum distillation (CVD) is a common laboratory‐based technique used for soil water extraction; however, the reliability of this technique in reflecting soil ...
Bin Yang   +14 more
wiley   +1 more source

Retaining natural vegetation to safeguard biodiversity and humanity

open access: yesConservation Biology, Volume 37, Issue 3, June 2023., 2023
Abstract Global efforts to deliver internationally agreed goals to reduce carbon emissions, halt biodiversity loss, and retain essential ecosystem services have been poorly integrated. These goals rely in part on preserving natural (e.g., native, largely unmodified) and seminatural (e.g., low intensity or sustainable human use) forests, woodlands, and ...
Jeremy S. Simmonds   +19 more
wiley   +1 more source

Factors that shape large‐scale gradients in clonality

open access: yesJournal of Biogeography, Volume 50, Issue 5, Page 827-837, May 2023., 2023
Abstract Aim Many plant species reproduce clonally. However, ecologists still have much to learn about the factors that shape large‐scale patterns in plant clonal growth and reproduction, especially in the southern hemisphere. We addressed this knowledge gap by quantifying relationships between reproductive mode and a suite of plant characteristics and
Hongxiang Zhang   +4 more
wiley   +1 more source

Effects of interactions between anthropogenic stressors and recurring perturbations on ecosystem resilience and collapse

open access: yesConservation Biology, Volume 37, Issue 1, February 2023., 2023
Abstract Insights into declines in ecosystem resilience and their causes and effects can inform preemptive action to avoid ecosystem collapse and loss of biodiversity, ecosystem services, and human well‐being. Empirical studies of ecosystem collapse are rare and hampered by ecosystem complexity, nonlinear and lagged responses, and interactions across ...
David A. Keith   +8 more
wiley   +1 more source

A novel red‐edge spectral index for retrieving the leaf chlorophyll content

open access: yesMethods in Ecology and Evolution, Volume 13, Issue 12, Page 2771-2787, December 2022., 2022
Abstract The leaf chlorophyll content (Chlleaf) is a crucial vegetation parameter in carbon cycle modelling and agricultural monitoring at local, regional and global scales. The red‐edge spectral region is sensitive to variations in Chlleaf. An increasing number of sensors are capable of sampling red‐edge bands, providing opportunities to estimate ...
Hu Zhang   +15 more
wiley   +1 more source

Water Use Strategy of Reaumuria Songarica Population in Steppe Desert Region Based on Spatial Distribution [PDF]

open access: yes, 2023
[Objective] The relationship between water adaptation and the distribution pattern of desert shrubs at the regional scale was studied and the process and mechanism of plant population response to environment in arid and semi-arid areas was analyzed in ...
Dong Lei   +6 more
core   +1 more source

Comparative Study on Soil Infiltration Characteristics of Different Land Use Types in Horqin Sandy Land [PDF]

open access: yes, 2022
[Objective] The differences in water infiltration characteristics between different land use types in Horqin sandy land were determined in order to provide a scientific reference for the study of water and material transport in the vadose zone in arid ...
Ala Musa   +3 more
core   +1 more source

Simulation of Soil N2O Emissions Under Different Soil Moisture Conditions by Using Mixed Dynamic Equation [PDF]

open access: yes, 2023
[Objective] Soil moisture has an important impact on N2O emissions. This study attempted to simulate the cumulative process of soil N2O emission under different soil moisture conditions by using a mixed dynamic equation, and to analyze the influence of ...
Duan Shufang   +6 more
core   +1 more source

北京土石山区坡面土壤水分动态及其对微地形的响应

open access: yesShuitu Baochi Xuebao, 2022
为了探讨不同微地形下坡面土壤水分的时空分布及其变异规律,以北京土石山区人工林坡面为研究对象,在40 m×50 m坡面共布设30个土壤水分观测点,分10 cm间隔观测,观测深度为50~70 cm。2015年4—10月使用Diviner 2000共监测土壤水分20次。结果表明:(1)坡地土壤水分含量时间变化趋势一致,大体随着降雨波动的变化而变化。(2)土壤水分随坡位变化而变化,水平阶上坡位<中坡位,缓坡中坡位<下坡位。(3)坡面土壤水分整体随深度的增加而增加,水土保持工程措施可有效改善土壤水分状况 ...
梁潇瑜, 信忠保, 王志杰
doaj  

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