Log in

Relevant bibliographies by topics / Sap flow / Journal articles

To see the other types of publications on this topic, follow the link: Sap flow.

Journal articles on the topic 'Sap flow'

Author: Grafiati

Published: 4 June 2021

Last updated: 25 July 2025

Create a spot-on reference in APA, MLA, Chicago, Harvard, and other styles

Select a source type:

Consult the top 50 journal articles for your research on the topic 'Sap flow.'

Next to every source in the list of references, there is an 'Add to bibliography' button. Press on it, and we will generate automatically the bibliographic reference to the chosen work in the citation style you need: APA, MLA, Harvard, Chicago, Vancouver, etc.

You can also download the full text of the academic publication as pdf and read online its abstract whenever available in the metadata.

Browse journal articles on a wide variety of disciplines and organise your bibliography correctly.

1

Burns, Edgar A. "Climate Sadness: The Fragile Beauty of Tonlé Sap." Qualitative Inquiry 28, no. 3-4 (2021): 383–91. http://dx.doi.org/10.1177/10778004211065804.

Full text

Abstract:

Tonlé Sap is the large fresh water lake-river near the geographic center of Cambodia. Visiting Tonlé Sap, following an academic conference in Phnom Penh, demanded a response at a personal and more visceral human level. Writing this poem attempted to express disquiet beyond academic examination of the biophysical dimensions of Tonlé Sap. The poem is sad for Tonlé Sap, for Cambodia, and implicitly for all of us on this planet. For thousands of years people have lived around Tonlé Sap, adapting to weather, the flow of water from mountain to sea, and the changing ebb and flow of civilizations. Ant

APA, Harvard, Vancouver, ISO, and other styles

2

Angadi, S. V., H. W. Cutforth, and B. G. McConkey. "Determination of the water use and water use response of canola to solar radiation and temperature by using heat balance stem flow gauges." Canadian Journal of Plant Science 83, no. 1 (2003): 31–38. http://dx.doi.org/10.4141/p02-022.

Full text

Abstract:

Sap flow gauges using a heat balance have been reliable for measuring real-time transpiration in a number of crops. However, information on the accuracy of sap flow gauges in canola is lacking. Therefore, a study was conducted to validate the sap flow system in canola and to observe sap flow response to variations in temperature and solar radiation. There were strong relationships between sap flow measured with sap flow gauges and actual transpiration measured by the gravimetric method over short periods of 1 h (r2 = 0.93 and RMSE = 2.34 g h-1), and over longer periods of 1 d (r2 = 0.83 and RM

APA, Harvard, Vancouver, ISO, and other styles

3

Cao, Yongxiang, Yushi Wang, Naichang Zhang, Chendong Ning, Yu Bai, and Jianbo Jia. "Response of Sap Flow Trends of Conifer and Broad-Leaved Trees to Rainfall Types in Sub-Humid Climate Region of China." Water 16, no. 1 (2023): 95. http://dx.doi.org/10.3390/w16010095.

Full text

Abstract:

Sap flow is one of the most important physiological water transport processes of trees, and the characteristics of sap flow are greatly affected by the spatial and temporal distribution of water in the SPAC (soil–plant–atmosphere continuum). However, different precipitation characteristics have great influence on the water environment of forest trees, which causes considerable differences in sap flow. Therefore, researching the response of sap flow to precipitation type is the key to accurately determining plant transpiration in semi-arid areas. We used K-means clustering analysis to divide th

APA, Harvard, Vancouver, ISO, and other styles

4

T. WATHAM, N.R. PATEL, S.P.S. KUSHWAHA, and V. K. DADHWAL. "A study on sap flow rate of Mallotusphilippensis and its relationship with environmental factors." Journal of Agrometeorology 19, no. 2 (2017): 104–9. http://dx.doi.org/10.54386/jam.v19i2.680.

Full text

Abstract:

Understating of the water availability and its corresponding use by Mallotusphilippensis and its control by climatic factors can give an idea about the ecosystem interaction. The sap flow measurement taken in M. philippensis during 2014 in Barkot forest showed that,the sap flow rate varied with time of day and season and also with radial depth of the tree trunk. The average daily sap flow rate was found to be 11.5 ± 1.7 cm h-1. Month-wise daily sap flow rate ranged between 4.4 to 10.6 cm h-1in outer portion of the trunk and 12.7 to 17.7cm h-1 in the inner portion of the trunk. Night-time sap f

APA, Harvard, Vancouver, ISO, and other styles

5

Zhou, Qing Yun, Yang Ren Wang, and Shu Hong Sun. "Characteristic of Sap Flow of Poplar and Response to Meteorological Factors in Coastal Region." Advanced Materials Research 1010-1012 (August 2014): 1055–58. http://dx.doi.org/10.4028/www.scientific.net/amr.1010-1012.1055.

Full text

Abstract:

Thermal dissipation sap flow rate probe was used to measure trunk sap flow dynamic of Poplar during the growing season from September 2011 to May 2012 in coastal region of China. The relationship of trunk sap flow rate and meteorological factors was analyzed. The results showed that the process of sap flow rate of Poplar presented an obvious day and night alternate phenomenon. The diurnal variation of sap flow was a single-peak curve in sunny day and a multi-peak curve in rainy day. According to Pearson correlation analysis, the diurnal sap flow rate of Poplar was positively correlated with so

APA, Harvard, Vancouver, ISO, and other styles

6

Gordon, R., D. M. Brown, A. Madani, and M. A. Dixon. "An assessment of potato sap flow as affected by soil water status, solar radiation and vapour pressure deficit." Canadian Journal of Soil Science 79, no. 2 (1999): 245–53. http://dx.doi.org/10.4141/s97-079.

Full text

Abstract:

Water-use of three field-grown potato cultivars (Atlantic, Monona and Norchip) was examined using a commercially available sap flow monitoring system over three consecutive growing seasons. The objectives of the investigation were to utilize the sap flow system to assess the water use of three field-grown potato cultivars. This included an assessment of the relationship between environmental conditions, water status and measured sap flow including the plant-to-plant variation in sap flow and an evaluation of relative transpiration in relation to the soil water status.Each cultivar maintained d

APA, Harvard, Vancouver, ISO, and other styles

7

Zhang, Runqing, Yangfan Chai, Xinyu Liang, Xiangjiang Liu, Xiaozhi Wang, and Zhongyuan Hu. "A New Plant-Wearable Sap Flow Sensor Reveals the Dynamic Water Distribution during Watermelon Fruit Development." Horticulturae 10, no. 6 (2024): 649. http://dx.doi.org/10.3390/horticulturae10060649.

Full text

Abstract:

This study utilized a plant-wearable sap flow sensor developed by a multidisciplinary team at Zhejiang University to monitor water distribution patterns in watermelon fruit stalks throughout their developmental stages. The dynamic rules of sap flow at different stages of fruit development were discovered: (1) In the first stage, sap flow into the fruit gradually halts after sunrise due to increased leaf transpiration, followed by a rapid increase post-noon until the next morning, correlating with fruit expansion. (2) In the second stage, the time of inflow sap from noon to night is significant

APA, Harvard, Vancouver, ISO, and other styles

8

Yin, Li He, Guan Ccai Hou, Jin Ting Huang, et al. "Time Lag between Sap Flow and Climatic Factors in Arid Environments." Advanced Materials Research 518-523 (May 2012): 1647–51. http://dx.doi.org/10.4028/www.scientific.net/amr.518-523.1647.

Full text

Abstract:

Sap flow of trees was controlled by climatic variables and a time lag presents between them. In this study, Time lag between sap flow and climatic factors was analyzed for willow in the Ordos Plateau. The result shows that sap flow velocity lags behind net radiation about 110 minutes and there is almost no time lag between net radiation and sap flow velocity.

APA, Harvard, Vancouver, ISO, and other styles

9

Fan, Bo, Ziqi Liu, Kangning Xiong, Yuan Li, Kaiping Li, and Xiao Yu. "Influence of Environmental Factors on the Sap Flow Activity of the Golden Pear in the Growth Period of Karst Area in Southern China." Water 14, no. 11 (2022): 1707. http://dx.doi.org/10.3390/w14111707.

Full text

Abstract:

Under extreme drought and climate change, golden pear trees have experienced problems such as yield reduction, dryness and death. This suggests that we know very little about the mechanisms regulating pear tree growth, assuming that meteorological factors positively influence plant sap flow. Based on this, we used the heat ratio method to monitor the sap flow of pear trees from June to December 2020, and recorded the changes in various environmental factors. The results showed that: (1) Sap flow velocity has obvious radial variability in tree sections; the sap flow velocity during the day was

APA, Harvard, Vancouver, ISO, and other styles

10

Ma, Yingbin, Yaru Huang, Jingbo Zhang, et al. "Effects of Stumping and Meteorological Factors on Sap Flow Characteristics of Haloxylon ammodendron in Ulan Buh Desert, Northwestern China." Atmosphere 15, no. 11 (2024): 1286. http://dx.doi.org/10.3390/atmos15111286.

Full text

Abstract:

The shrub/dwarf tree Haloxylon ammodendron is a prevalent woody plant used to combat desertification in the arid and semi-arid regions of northwestern China. Despite its drought resistance, artificial stands of this species experience significant degradation approximately ten years post-afforestation. Stumping, which involves cutting a portion of the above-ground part of shrubs/trees, is a common practice aimed at reducing water consumption and enhancing the growth of these stands. However, the impact of stumping on the sap flow of H. ammodendron remain inadequately understood, posing challeng

APA, Harvard, Vancouver, ISO, and other styles

11

Kim, Y. T., and R. H. Leech. "Effects of Climatic Conditions on Sap Flow in Sugar Maple." Forestry Chronicle 61, no. 4 (1985): 303–7. http://dx.doi.org/10.5558/tfc61303-4.

Full text

Abstract:

Temperature, sunlight and precipitation were studied to examine their influence on sugar maple (Acer saccharum Marsh) sap flow over a five-year period. Temperature was the most important climatic factor influencing the amount of sap flow. Sunlight also increased the sap flow, but rain one day before the sap collection reduced it.

APA, Harvard, Vancouver, ISO, and other styles

12

Steppe, Kathy, Raoul Lemeur, and Diego Dierick. "Unravelling the relationship between stem temperature and air temperature to correct for errors in sap-flow calculations using stem heat balance sensors." Functional Plant Biology 32, no. 7 (2005): 599. http://dx.doi.org/10.1071/fp04242.

Full text

Abstract:

Results from measurement of sap flow by heat balance sensors on the stem of a young oak tree (Quercus robur L.) revealed that thermal disequilibrium (i.e. heat storage) within the heated stem segment can introduce considerable errors in the measured sap-flow rates. The magnitude, sign and significance of these errors depend on the sap-flow rate and on the relationship between stem temperature and air temperature. Sap-flow rates were found to be more prone to errors caused by heat storage effects under low flow conditions than at higher rates of sap flow. Furthermore, daytime fluctuations of ai

APA, Harvard, Vancouver, ISO, and other styles

13

Zhang, Biao, Dongmei Zhang, Zhongke Feng, et al. "Assessment of the Potential of Indirect Measurement for Sap Flow Using Environmental Factors and Artificial Intelligence Approach: A Case Study of Magnolia denudata in Shanghai Urban Green Spaces." Forests 14, no. 9 (2023): 1768. http://dx.doi.org/10.3390/f14091768.

Full text

Abstract:

The measurement of plant sap flow has long been a traditional method for quantifying transpiration. However, conventional direct measurement methods are often costly and complex, thereby limiting the widespread application of tree sap flow monitoring techniques. The concept of a Virtual Measurement Instrument (VMI) has emerged in response to this challenge by combining simple instruments with Artificial Intelligence (AI) algorithms to indirectly assess specific measurement objects. This study proposes a tree sap flow estimation method based on environmental factors and AI algorithms. Through t

APA, Harvard, Vancouver, ISO, and other styles

14

Uddin, Jasim, Rod Smith, Nigel Hancock, and Joseph Foley. "Evaluation of Sap Flow Sensors to Measure the Transpiration Rate of Plants during Canopy Wetting and Drying." Journal of Agricultural Studies 2, no. 2 (2014): 105. http://dx.doi.org/10.5296/jas.v2i2.6134.

Full text

Abstract:

Accurate measurement of transpiration is required to estimate the various components of evaporation losses during sprinkler irrigation. Among the methods, sap flow measurements have widely used for direct measurements of transpiration rate in plant. To evaluate the applicability of this method to field experiments involving canopy wetting (by sprinkler irrigation), stem flow measurements were compared with transpiration values estimated from successive mass measurements of small potted plants using pre-calibrated mini-lysimeters in a glasshouse at the University of Southern Queensland, during

APA, Harvard, Vancouver, ISO, and other styles

15

Heilman, J. L., and J. M. Ham. "Measurement of Mass Flow Rate of Sap in Ligustrum japonicum." HortScience 25, no. 4 (1990): 465–67. http://dx.doi.org/10.21273/hortsci.25.4.465.

Full text

Abstract:

The heat balance method of measuring mass flow of sap was tested on wax leaf ligustrum (Ligustrum japonicum Thunb.) to evaluate its usefulness for measuring water use in shrubs. Sap flow measurements were compared with gravimetric estimates of transpiration in growth chamber and field environments. Sap flow measurements in both environments were within 10% of transpiration, which compared favorably with results reported for herbaceous plants by other researchers. Sizable differences in sap flow, due mainly to differences in leaf area, were found among five plants tested in the field. When flow

APA, Harvard, Vancouver, ISO, and other styles

16

Forster, Michael A. "A Test of the Relationship between Sap Flow and Evapotranspiration, Normalized via Leaf Area, under Non-Limiting Soil Moisture." Forests 12, no. 7 (2021): 875. http://dx.doi.org/10.3390/f12070875.

Full text

Abstract:

Sap flow is the movement of fluid within plants, whereas reference evapotranspiration (ETo) occurs external to plants as the transfer of water vapor from a hypothetical grass crop. Yet, on daily time scales, and when soil moisture is non-limiting, sap flow has a positive linear relationship with ETo. Furthermore, the E2.88 model hypothesises that sap flow (Q) is equal to ETo when parameters are normalized by leaf area (AL) via the following relationship: Q/AL = ETo/2.88. The value of 2.88 is the supposed leaf area index of the hypothetical grass in the ETo model. Therefore, the E2.88 model pot

APA, Harvard, Vancouver, ISO, and other styles

17

Han, Yuehao, Yu Su, Fude Liu, Yan Zhang, and Hailong Wu. "A Study on the Water Consumption Characteristics of Fraxinus pennsylvanica Marshall During the Growing and Non-Growing Seasons and Their Response to Microclimate Variables." Forests 16, no. 3 (2025): 401. https://doi.org/10.3390/f16030401.

Full text

Abstract:

Plant water use can have a profound impact on the regional water cycle and water balance. A great deal of research has been conducted in this area in recent years. However, plant nighttime sap flow and non-growing season water use have rarely been addressed. These two components should not be neglected in accurately predicting the water use of urban landscape trees and large-scale plantation forests. In this study, the thermal diffusion probe (TDP) method was used to observe the water use of Fraxinus pennsylvanica Marshall, a common tree species in northern China. Continuous observations of sa

APA, Harvard, Vancouver, ISO, and other styles

18

Nalevanková, Paulína, Peter Fleischer, Mohammad Mukarram, Zuzana Sitková, and Katarína Střelcová. "Comparative Assessment of Sap Flow Modeling Techniques in European Beech Trees: Can Linear Models Compete with Random Forest, Extreme Gradient Boosting, and Neural Networks?" Water 15, no. 14 (2023): 2525. http://dx.doi.org/10.3390/w15142525.

Full text

Abstract:

Transpiration and sap flow are physiologically interconnected processes that regulate nutrient and water uptake, controlling major aspects of tree life. They hold special relevance during drought, where wrecked sap flow can undermine overall tree growth and development. The present study encompasses five-year (2012–2015 and 2017) sap flow datasets on European beech (Fagus sylvatica). Four different techniques were used for sap flow modeling, namely, a linear model (LM), random forest (RF), extreme gradient boosting machine (XGBM), and neural networks (NN). We used six variants (Variants 1–6) d

APA, Harvard, Vancouver, ISO, and other styles

19

Bouamama-Gzara, Badra, Hassene Zemni, Noomene Sleimi, Abdelwahed Ghorbel, Lassaad Gzara, and Naima Mahfoudhi. "Diversification of Vascular Occlusions and Crystal Deposits in the Xylem Sap Flow of Five Tunisian Grapevines." Plants 11, no. 16 (2022): 2177. http://dx.doi.org/10.3390/plants11162177.

Full text

Abstract:

Xylem vessels are essential pivotal organs in bulk hydraulic flow through the whole woody plant. However, environmental constraints generate disagreements in xylem structures, which are characterized by air emboli and occlusions formations, compromising water conductivity in grapevines. The aim of this work was to explore xylem morphology dynamics through the xylem sap flow of five Tunisian grapevine cultivars during the natural bleeding sap periods of 2019, 2021, and 2022. In fact, Sakasly, Khamri, Hencha, Razegui1, and Razegui2 rain-fed grapevine cultivars revealed differential responses tow

APA, Harvard, Vancouver, ISO, and other styles

20

Dugas, William A. "Sap flow in stems." Remote Sensing Reviews 5, no. 1 (1990): 225–35. http://dx.doi.org/10.1080/02757259009532131.

Full text

APA, Harvard, Vancouver, ISO, and other styles

21

Battey, N. H. "April-watching sap flow." Journal of Experimental Botany 54, no. 385 (2003): 1121–24. http://dx.doi.org/10.1093/jxb/erg137.

Full text

APA, Harvard, Vancouver, ISO, and other styles

22

Choi, Won Gi, Dong-Eon Kim, Sang Hyun Lee, and Min Soo Kim. "Development of a Sap Flow Prediction Model for 'Shingo' Pear Trees Using Growth and Meteorological Information." Korean Data Analysis Society 27, no. 2 (2025): 385–99. https://doi.org/10.37727/jkdas.2025.27.2.385.

Full text

Abstract:

Understanding sap flow is crucial for comprehending tree growth. However, it is impractical for all farms to directly measure sap flow. Although many studies have attempted to predict sap flow, most of them have relied on hard-to-obtain data in addition to weather information. This study aims to propose a model for predicting sap flow in ‘Shingo’ pear trees using only easily accessible weather variables, civil twilight time, and DAFB (Days After Full Bloom). Additionally, to account for the time-lag effect in the nonlinear relationship between sap flow and weather variables, we performed lagge

APA, Harvard, Vancouver, ISO, and other styles

23

Tian, Yuan, Qiuliang Zhang, Xuan Liu, Meng Meng, and Bing Wang. "The Relationship between Stem Diameter Shrinkage and Tree Bole Moisture Loss Due to Transpiration." Forests 10, no. 3 (2019): 290. http://dx.doi.org/10.3390/f10030290.

Full text

Abstract:

The responsiveness of four types of stem diameter shrinkage indicators to sap flow changes was compared under four air temperature and cloudiness conditions: above 0 °C below 80% cloud cover days; above 0 °C large percentage cloud cover days; low temperature below 80% cloud cover days; and low temperature large percentage cloud cover days. In this study, we investigated the effects of indicative functions of relatively easy-to-access stem diameter shrinkage on variation characteristics of sap flow. High-resolution-based stem diameter shrinkage is related to changes in tree moisture content. St

APA, Harvard, Vancouver, ISO, and other styles

24

Hussein, Ismail A., and Marshall J. McFarland. "Rootstock-induced Differences in Sap Flow of `Granny Smith' Apple." HortScience 29, no. 10 (1994): 1120–23. http://dx.doi.org/10.21273/hortsci.29.10.1120.

Full text

Abstract:

Two-year-old, greenhouse-grown, potted `Granny Smith' apple (Malus domestica Borkh.) trees grafted on seedling, M.7 EMLA, or Mark rootstock were subjected to water stress by withholding irrigation for three successive days. Sap flow rates were measured with steady-state, heat-balance stem gauges; daily water use was measured with an electronic balance; and instantaneous transpiration was measured with a diffusion porometer. Differences in the sap flow among the three rootstocks were observed by the third day of stress treatment. The cumulative sap flow over the 3-day stress period was higher f

APA, Harvard, Vancouver, ISO, and other styles

25

Hara, Yuki, Naoki Hara, Hiroki Ishizuka, Kyohei Terao, Hidekuni Takao, and Fusao Shimokawa. "Microscale Xylem Sap Flow Sensor Facilitating the Simultaneous Measurement of Flow Velocity and Direction." Proceedings 2, no. 13 (2019): 824. http://dx.doi.org/10.3390/proceedings2130824.

Full text

Abstract:

In this study, we focused on direct and quantitative monitoring of sap dynamics in plant stems, and proposed the microscale xylem sap flow sensor. This sensor facilitates the simultaneous measurement of flow velocity and direction by combining the principles of a Granier sensor and a thermal flow sensor. We fabricated micro-sensor chips for functional verification by using MEMS technology, and assembled them on a resin film to facilitate mounting on the epidermis of plants. Furthermore, we measured the sap dynamics by using an experimental setup, and succeeded in measuring the flow velocity an

APA, Harvard, Vancouver, ISO, and other styles

26

Hu, Meijun, Changming Ma, Jinsong Zhang, Yujie Ma, Chunyou Li, and Wei Xiong. "Calibration of Thermal Dissipation Probes for Xylem Sap Flow in the Wood of a Diffuse-Porous and a Conifer Species under Cyclic Heating." Forests 13, no. 11 (2022): 1964. http://dx.doi.org/10.3390/f13111964.

Full text

Abstract:

The most popular sap flow measurement technique uses thermal dissipation probes. Differences in wood characteristics and the natural temperature gradient between probes have affected the accuracy and applicability of the sap flow equation. In addition, the continued heat of the probe can also cause thermal damage to tree tissue. The objectives of this study were to use cyclic heating and calibrate the probes with two species: Pinus bungeana Zucc. And Salix matsudana Koidz., two typical diffuse-porous species. This experiment evaluated a thermal dissipation probe in three heating modes: continu

APA, Harvard, Vancouver, ISO, and other styles

27

Han, Shuying, Qingming Wang, Yong Zhao, et al. "Response of Typical Tree Species Sap Flow to Environmental Factors in the Hilly Areas of Haihe River Basin, China." Forests 15, no. 2 (2024): 294. http://dx.doi.org/10.3390/f15020294.

Full text

Abstract:

Understanding developments in the trunk sap flow of prevalent tree species within the hilly areas of the Haihe River basin is imperative for ecosystem conservation. Nevertheless, the changes in sap flow of local trees and their response to environmental factors remain elusive. This study focuses on seven dominant tree species in the hilly area of the Haihe River basin and analyzed the relationship between tree sap flow rate and environmental factors at different time scales (hourly and daily). Our findings suggested: (1) Regardless of the time scale, total solar irradiance played a primary rol

APA, Harvard, Vancouver, ISO, and other styles

28

Lawrence, Beth Jez, and Jayne M. Zajicek. "SUPRAOPTIMAL ROOT-ZONE TEMPERATURE EFFECTS ON WATER USE OF THREE CERCIS SPP." HortScience 27, no. 6 (1992): 635c—635. http://dx.doi.org/10.21273/hortsci.27.6.635c.

Full text

Abstract:

Sap flow rates of three Cercis spp. exposed to supraoptimal root-zone temperatures were characterized in a controlled environment chamber using a water bath to control temperatures. Flow rates of sap in the xylem were measured every 15 sec. and averaged over 15 min. intervals. Sap flow measurements were correlated to root-zone temperatures recorded during the same time intervals. Whole plant transpiration was measured gravimetrically. Root-zone temperatures were maintained at 22C for three consecutive 24-hr cycles and then increased to 45C for an additional three 24-hr periods. All plants, reg

APA, Harvard, Vancouver, ISO, and other styles

29

Xia, Tianbo, Ping Zhang, Jinluo Ma, et al. "Study on the Water Mechanism of Sparse Grassland Decline of Ulmus pumila L." Forests 15, no. 12 (2024): 2061. http://dx.doi.org/10.3390/f15122061.

Full text

Abstract:

Ulmus pumila L. occupies an important niche in arid ecosystems. This study aimed to investigate the sap flow characteristics of declining Ulmus pumila L. in arid regions and its relationship with environmental factors. During the 2023 growing season (June to October), continuous sap flow monitoring was conducted using thermal dissipation probes (TDPs) on Ulmus pumila L., along with measurements of soil moisture, air temperature, relative humidity, solar radiation, wind speed, and vapor pressure deficit (VPD). The results showed that when the sap flow rate of elm individuals reached 0.92 mL/cm2

APA, Harvard, Vancouver, ISO, and other styles

30

Terada, Yasuhiko, Yusuke Horikawa, Akiyoshi Nagata, Katsumi Kose, and Kenji Fukuda. "Dynamics of xylem and phloem sap flow in an outdoor zelkova tree visualized by magnetic resonance imaging." Tree Physiology 40, no. 3 (2019): 290–304. http://dx.doi.org/10.1093/treephys/tpz120.

Full text

Abstract:

Abstract Xylem and phloem sap flows in an intact, young Japanese zelkova tree (Zelkova serrata (Thunb.) Makino) growing outdoors were measured using magnetic resonance imaging (MRI). Two propagator-based sequences were developed for q-space imaging: pulse field gradient (PFG) with spin echo (PFG-SE) and stimulated echo (PFG-STE), which were used for xylem and phloem flow measurements, respectively. The data evaluation methods were improved to image fast xylem flow and slow phloem flow. Measurements were taken every 2–3 h for several consecutive days in August 2016, and diurnal changes in xylem

APA, Harvard, Vancouver, ISO, and other styles

31

Qiang, Yuquan, Xianying Xu, and Jinchun Zhang. "Study on the Dynamics of Stem Sap Flow in Minqin Wind and Sand Control Haloxylon ammodendron Forest, China." Sustainability 15, no. 1 (2022): 609. http://dx.doi.org/10.3390/su15010609.

Full text

Abstract:

In this study, we obtained real-time data on the stem fluid flow of Haloxylon ammodendron in the growing season in Minqin, China, based on thermal diffusion (TDP) monitoring technology, and analyzed the dynamic changes of stem fluid flow in it to provide important supporting evidence for understanding the water consumption of H. ammodendron during its growth. The results indicate that the fluid flow in the stem of the H. ammodendron increases with increasing growth age and also decreases as the H. ammodendron grows older and declines. The average daily sap flow rates of H. ammodendron stems we

APA, Harvard, Vancouver, ISO, and other styles

32

Jian, Shengqi, Zening Wu, Caihong Hu, and Xueli Zhang. "Sap flow in response to rainfall pulses for two shrub species in the semiarid Chinese Loess Plateau." Journal of Hydrology and Hydromechanics 64, no. 2 (2016): 121–32. http://dx.doi.org/10.1515/johh-2016-0023.

Full text

Abstract:

Abstract Rainfall pulses can significantly drive the evolution of the structure and function of semiarid ecosystems, and understanding the mechanisms that underlie the response of semiarid plants to rainfall is the key to understanding the responses of semi–arid ecosystems to global climatic change. We measured sap flow in the branches and stems of shrubs (Caragana korshinskii Kom. and Hippophae rhamnoides Linn.) using sap flow gauges, and studied the response of sap flow density to rainfall pulses using the “threshold–delay” model in the Chinese Loess Plateau. The results showed that the sap

APA, Harvard, Vancouver, ISO, and other styles

33

Deepak, Kumar, and Bhageshwara Raju Kesaboina Maha. "SAP Cloud Integration – An Overview, Best Practices, and Implementation Steps – Part 1." Journal of Scientific and Engineering Research 7, no. 8 (2020): 245–50. https://doi.org/10.5281/zenodo.13337782.

Full text

Abstract:

SAP CPI, also known as SAP Cloud Platform Integration is a cloud-based integration platform provided by SAP. It allows for connectivity, between applications, systems, and services both within and outside of an organization. With SAP CPI businesses can simplify the integration process. Optimize data flow and communication between software solutions. It facilitates the exchange of data across environments promoting interoperability and enhancing collaboration efficiency. Additionally, SAP CPI offers built-in integration iFlow and adapters to reduce the complexity of integration projects and spe

APA, Harvard, Vancouver, ISO, and other styles

34

Deepak, Kumar, and Bhageshwara Raju Kesaboina Maha. "SAP Cloud Integration – An Overview, Best Practices, and Implementation Steps – Part 1." Journal of Scientific and Engineering Research 7, no. 8 (2020): 245–50. https://doi.org/10.5281/zenodo.12772592.

Full text

Abstract:

SAP CPI, also known as SAP Cloud Platform Integration is a cloud-based integration platform provided by SAP. It allows for connectivity, between applications, systems, and services both within and outside of an organization. With SAP CPI businesses can simplify the integration process. Optimize data flow and communication between software solutions. It facilitates the exchange of data across environments promoting interoperability and enhancing collaboration efficiency. Additionally, SAP CPI offers built-in integration iFlow and adapters to reduce the complexity of integration projects and spe

APA, Harvard, Vancouver, ISO, and other styles

35

Bleby, Timothy M., Stephen S. O. Burgess, and Mark A. Adams. "A validation, comparison and error analysis of two heat-pulse methods for measuring sap flow in Eucalyptus marginata saplings." Functional Plant Biology 31, no. 6 (2004): 645. http://dx.doi.org/10.1071/fp04013.

Full text

Abstract:

We validated and compared two heat-pulse methods for measuring sap flow in potted Eucalyptus marginata Donn ex. Smith (jarrah) saplings. During daylight hours and under well-watered conditions, rates of sap flow (0.1–0.5 kg h–1) measured by the established compensation heat-pulse method (CHPM) and the newly developed heat-ratio method (HRM) were similar to rates measured with a weighing lysimeter, and most of the time there was no significant difference (P<0.001) between methods. The HRM accurately described sap flow at night when rates of flow were low (< 0.1 kg h–1) or near zero, but t

APA, Harvard, Vancouver, ISO, and other styles

36

Eliades, Marinos, Adriana Bruggeman, Hakan Djuma, and Maciek Lubczynski. "Tree Water Dynamics in a Semi-Arid, Pinus brutia Forest." Water 10, no. 8 (2018): 1039. http://dx.doi.org/10.3390/w10081039.

Full text

Abstract:

This study aims to examine interactions between tree characteristics, sap flow, and environmental variables in an open Pinus brutia (Ten.) forest with shallow soil. We examined radial and azimuthal variations of sap flux density (Jp), and also investigated the occurrence of hydraulic redistribution mechanisms, quantified nocturnal tree transpiration, and analyzed the total water use of P. brutia trees during a three-year period. Sap flow and soil moisture sensors were installed onto and around eight trees, situated in the foothills of the Troodos Mountains, Cyprus. Radial observations showed a

APA, Harvard, Vancouver, ISO, and other styles

37

Vandegehuchte, Maurits W., and Kathy Steppe. "Sap-flux density measurement methods: working principles and applicability." Functional Plant Biology 40, no. 3 (2013): 213. http://dx.doi.org/10.1071/fp12233.

Full text

Abstract:

Sap-flow measurements have become increasingly important in plant science. Since the early experiments with dyes, many methods have been developed. Most of these are based on the application of heat in the sapwood which is transported by the moving sap. By measuring changes in the temperature field around the heater, sap flow can be derived. Although these methods all have the same basis, their working principles vary widely. A first distinction can be made between those measuring the sap-flow rate (g h–1) such as the stem heat balance and trunk sector heat balance method and those measuring s

APA, Harvard, Vancouver, ISO, and other styles

38

Vandegehuchte, Maurits W., and Kathy Steppe. "Corrigendum to: Sap-flux density measurement methods: working principles and applicability." Functional Plant Biology 40, no. 10 (2013): 1088. http://dx.doi.org/10.1071/fp12233_co.

Full text

Abstract:

Sap-flow measurements have become increasingly important in plant science. Since the early experiments with dyes, many methods have been developed. Most of these are based on the application of heat in the sapwood which is transported by the moving sap. By measuring changes in the temperature field around the heater, sap flow can be derived. Although these methods all have the same basis, their working principles vary widely. A first distinction can be made between those measuring the sap-flow rate (g h–1) such as the stem heat balance and trunk sector heat balance method and those measuring s

APA, Harvard, Vancouver, ISO, and other styles

39

Korakaki, Evangelia, and Mariangela N. Fotelli. "Sap Flow in Aleppo Pine in Greece in Relation to Sapwood Radial Gradient, Temporal and Climatic Variability." Forests 12, no. 1 (2020): 2. http://dx.doi.org/10.3390/f12010002.

Full text

Abstract:

Research Highlights: The radial gradient of sap flux density (Js) and the effects of climatic factors on sap flow of Aleppo pine were assessed at different time scales in an eastern Mediterranean ecosystem to improve our understanding of the species water balance. Background and Objectives: Aleppo pine’s sap flow radial profile and responses to environmental parameters in the eastern Mediterranean were, to our best knowledge, originating to date from more arid planted forests. Information from natural forests in this region was lacking. Our objectives were to (a) determine the species’ radial

APA, Harvard, Vancouver, ISO, and other styles

40

Qiu, Rangjian, Taisheng Du, Shaozhong Kang, Renqiang Chen, and Laosheng Wu. "Influence of Water and Nitrogen Stress on Stem Sap Flow of Tomato Grown in a Solar Greenhouse." Journal of the American Society for Horticultural Science 140, no. 2 (2015): 111–19. http://dx.doi.org/10.21273/jashs.140.2.111.

Full text

Abstract:

Accurate measurement of crop water use under different water and nitrogen (N) conditions is of great importance for irrigation scheduling and N management. This research investigated the effect of water and N status on stem sap flow of tomato (Solanum lycopersicum) grown in an unheated solar greenhouse in northwest China. A water experiment included sufficient water supply (T1) based on in situ water content measurement, two-thirds T1 (T2) and half T1 (T3) under a typical N application rate (N1); i.e., 57.4 g·m−2 N. The N experiment included N1, two-thirds N1 (N2), and half N1 (N3) under T2 ir

APA, Harvard, Vancouver, ISO, and other styles

41

Bayona-Rodríguez, Cristihian Jarri, and Hernán Mauricio Romero. "Estimation of transpiration in oil palm (Elaeis guineensis Jacq.) with the heat ratio method." Agronomía Colombiana 34, no. 2 (2016): 172–78. http://dx.doi.org/10.15446/agron.colomb.v34n2.55649.

Full text

Abstract:

Sap flow sensors were installed on the leaf petioles of 5-year-old oil palms (Elaeis guineensis Jacq.) to measure the xylem water flow for 12 days based on the heat ratio method (HRM). It was found that young leaves have higher sap flow rates, reaching values of over 250 cm3 h-1, and that sap flow fluctuations are directly related to weather conditions, particularly the vapor pressure deficit (VPD) component. It was observed that the sap flow rates remained constant and very close to 0 cm3 h-1 between 18:00 and 6:00 h and that the upward and downward movement of sap was faster during the day,

APA, Harvard, Vancouver, ISO, and other styles

42

Lawrence, B. Jez, and J. M. Zajicek. "HIGH ROOT-ZONE TEMPERATURE EFFECTS ON DIURNAL WATER USE OF WOODY ORNAMENTAL." HortScience 25, no. 9 (1990): 1118a—1118. http://dx.doi.org/10.21273/hortsci.25.9.1118a.

Full text

Abstract:

Root-zone temperature fluctuations and sap flow rates were characterized for several woody ornamental plants in a controlled environment using a water bath to control temperatures. Flow rates of sap in the xylem were measured every 15 seconds and averaged over 15 minute intervals. Sap flow measurements were correlated to root-zone temperatures recorded during the same time intervals. Whole plant transpiration was measured gravimetrically. Root-zone temperatures were raised from 22°C to 45°C (slightly below lethality between 9:00 am and 12:00 noon, held at that temperature until 4:00 pm, and th

APA, Harvard, Vancouver, ISO, and other styles

43

Sun, Xi, Jie Li, Donald Cameron, and Gregory Moore. "On the Use of Sap Flow Measurements to Assess the Water Requirements of Three Australian Native Tree Species." Agronomy 12, no. 1 (2021): 52. http://dx.doi.org/10.3390/agronomy12010052.

Full text

Abstract:

The measurement of sap movement in xylem sapwood tissue using heat pulse velocity sap flow instruments has been commonly used to estimate plant transpiration. In this study, sap flow sensors (SFM1) based on the heat ratio method (HRM) were used to assess the sap flow performance of three different tree species located in the eastern suburbs of Melbourne, Australia over a 12-month period. A soil moisture budget profile featuring potential evapotranspiration and precipitation was developed to indicate soil moisture balance while the soil-plant-atmosphere continuum was examined at the study site

APA, Harvard, Vancouver, ISO, and other styles

44

Wei, Xinguang, Shining Fu, Dianyu Chen, Siyu Zheng, Tieliang Wang, and Yikui Bai. "Grapevine Sap Flow in Response to Physio-Environmental Factors under Solar Greenhouse Conditions." Water 12, no. 11 (2020): 3081. http://dx.doi.org/10.3390/w12113081.

Full text

Abstract:

Understanding transpiration responses to physiological and environmental factors is essential for efficient water management practices in greenhouse grapevine farms. To determine the driving factors of grapevine sap flow under solar greenhouse conditions in a typical cold climate, the sap flow, greenhouse micro-environmental conditions, and canopy details were measured and analyzed for the 2017–2018 growing season in Northeast China. The results showed that leaf area index controlled the upper boundary of sap flow rate (SFR). Correlations between SFR and meteorological factors obviously varied

APA, Harvard, Vancouver, ISO, and other styles

45

Ploetz, Randy C., Bruce Schaffer, Ana I. Vargas, Joshua L. Konkol, Juanpablo Salvatierra, and Ronney Wideman. "Impact of Laurel Wilt, Caused by Raffaelea lauricola, on Leaf Gas Exchange and Xylem Sap Flow in Avocado, Persea americana." Phytopathology® 105, no. 4 (2015): 433–40. http://dx.doi.org/10.1094/phyto-07-14-0196-r.

Full text

Abstract:

Laurel wilt, caused by Raffaelea lauricola, is a destructive disease of avocado (Persea americana). The susceptibility of different cultivars and races was examined previously but more information is needed on how this host responds to the disease. In the present study, net CO2 assimilation (A), stomatal conductance of H2O (gs), transpiration (E), water use efficiency (WUE), and xylem sap flow rates were assessed in cultivars that differed in susceptibility. After artificial inoculation with R. lauricola, there was a close relationship between symptom development and reductions in A, gs, E, WU

APA, Harvard, Vancouver, ISO, and other styles

46

Solum, James, and Bwalya Malama. "Estimating Canopy-Scale Evapotranspiration from Localized Sap Flow Measurements." Water 14, no. 11 (2022): 1812. http://dx.doi.org/10.3390/w14111812.

Full text

Abstract:

The results reported in this work are based in part on measurements of sap flow in a few select trees on a representative riparian forest plot coupled with a forest-wide randomized sampling of tree sapwood area in a watershed located along the Pacific coast in Santa Cruz County, California. These measurements were upscaled to estimate evapotranspiration (ET) across the forest and to quantify groundwater usage by dominant phreatophyte vegetation. Canopy cover in the study area is dominated by red alder (Alnus rubra) and arroyo willow (Salix lasiolepis), deciduous phreatophyte trees from which a

APA, Harvard, Vancouver, ISO, and other styles

47

Peng, Xuelian, Xiaotao Hu, Dianyu Chen, et al. "Prediction of Grape Sap Flow in a Greenhouse Based on Random Forest and Partial Least Squares Models." Water 13, no. 21 (2021): 3078. http://dx.doi.org/10.3390/w13213078.

Full text

Abstract:

Understanding variations in sap flow rates and the environmental factors that influence sap flow is important for exploring grape water consumption patterns and developing reasonable greenhouse irrigation schedules. Three irrigation levels were established in this study: adequate irrigation (W1), moderate deficit irrigation (W2) and deficit irrigation (W3). Grape sap flow estimation models were constructed using partial least squares (PLS) and random forest (RF) algorithms, and the simulation accuracy and stability of these models were evaluated. The results showed that the daily mean sap flow

APA, Harvard, Vancouver, ISO, and other styles

48

Zeppel, Melanie, Catriona Macinnis-Ng, Anthony Palmer, et al. "An analysis of the sensitivity of sap flux to soil and plant variables assessed for an Australian woodland using a soil - plant - atmosphere model." Functional Plant Biology 35, no. 6 (2008): 509. http://dx.doi.org/10.1071/fp08114.

Full text

Abstract:

Daily and seasonal patterns of tree water use were measured for the two dominant tree species, Angophora bakeri E.C.Hall (narrow-leaved apple) and Eucalyptus sclerophylla (Blakely) L.A.S. Johnson & Blaxell (scribbly gum), in a temperate, open, evergreen woodland using sap flow sensors, along with information about soil, leaf, tree and micro-climatological variables. The aims of this work were to: (a) validate a soil–plant–atmosphere (SPA) model for the specific site; (b) determine the total depth from which water uptake must occur to achieve the observed rates of tree sap flow; (c) examine

APA, Harvard, Vancouver, ISO, and other styles

49

Engeda, A., and Y. Elkacimi. "A regenerative flow compressor as a secondary air pump for engine emission control." Proceedings of the Institution of Mechanical Engineers, Part C: Journal of Mechanical Engineering Science 222, no. 9 (2008): 1707–15. http://dx.doi.org/10.1243/09544062jmes958.

Full text

Abstract:

A secondary air pump (SAP) is an air compressor that supplies air to the exhaust system of an automotive engine for the emission control of the engine. The SAP system has been offered as an emission control device in later versions of cars, starting in the mid-1990s. Various types of rotary and positive displacement air pumps have been tested and used for SAP application. The regenerative flow compressor/pump (RFC or RFP) and the centrifugal compressor have been found to be best suited for SAP application. This paper discusses the performance of an RFC for SAP application and shows the RFC to

APA, Harvard, Vancouver, ISO, and other styles

50

Rose, Mark A. "The Use of Sap Flow Gauges for Estimating Transpiration." HortScience 30, no. 4 (1995): 905C—905. http://dx.doi.org/10.21273/hortsci.30.4.905c.

Full text

Abstract:

New electronic biosensors that directly monitor plant physiological and morphological processes are now being developed for use in research and commercial applications. Although methods for measuring sap flow by applying heat to stems have been used for more than 20 years, they have usually been intrusive, required empirical calibrations and conversions, and been too fragile for rugged commercial environments. A more-promising method for monitoring sap flow is balancing the thermal fluxes into and out of a stem segment using heat sources wrapped around a stem. Constant heat-balance sap-flow ga

APA, Harvard, Vancouver, ISO, and other styles

We offer discounts on all premium plans for authors whose works are included in thematic literature selections. Contact us to get a unique promo code!