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En el instante 16 de octubre de 2024, 12:42:25 +1100, Jess Thompson:
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Añadido recurso A river basin spatial model to quantitively advance understanding of riverine tree response dynamics to water availability and hydrological management a Floodplain Woody Vegetation Evapotranspiration project
f | 1 | { | f | 1 | { |
2 | "Authoring Agency": "Murray-Darling Basin Authority", | 2 | "Authoring Agency": "Murray-Darling Basin Authority", | ||
3 | "Data Category": "Presentation", | 3 | "Data Category": "Presentation", | ||
4 | "Domain": "Salinity", | 4 | "Domain": "Salinity", | ||
5 | "Source": "", | 5 | "Source": "", | ||
6 | "author": null, | 6 | "author": null, | ||
7 | "author_email": null, | 7 | "author_email": null, | ||
8 | "authors": "", | 8 | "authors": "", | ||
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15 | "language": "", | 15 | "language": "", | ||
16 | "license_id": "cc-by", | 16 | "license_id": "cc-by", | ||
17 | "license_title": "Creative Commons Attribution", | 17 | "license_title": "Creative Commons Attribution", | ||
18 | "license_url": "http://www.opendefinition.org/licenses/cc-by", | 18 | "license_url": "http://www.opendefinition.org/licenses/cc-by", | ||
19 | "maintainer": null, | 19 | "maintainer": null, | ||
20 | "maintainer_email": null, | 20 | "maintainer_email": null, | ||
21 | "metadata_created": "2024-10-16T01:40:15.025827", | 21 | "metadata_created": "2024-10-16T01:40:15.025827", | ||
n | 22 | "metadata_modified": "2024-10-16T01:41:40.855559", | n | 22 | "metadata_modified": "2024-10-16T01:42:25.238107", |
23 | "name": "floodplain-woody-vegetation-evapotranspiration-project", | 23 | "name": "floodplain-woody-vegetation-evapotranspiration-project", | ||
24 | "notes": "This project aimed to improve the understanding of water | 24 | "notes": "This project aimed to improve the understanding of water | ||
25 | and salt movement in lower River Murray floodplains from River Red Gum | 25 | and salt movement in lower River Murray floodplains from River Red Gum | ||
26 | and Black Box tree ET. This presentation provides an opportunity for | 26 | and Black Box tree ET. This presentation provides an opportunity for | ||
27 | salinity managers, environmental water managers, and river managers to | 27 | salinity managers, environmental water managers, and river managers to | ||
28 | be presented with the outcomes emerging from this research | 28 | be presented with the outcomes emerging from this research | ||
29 | project.\r\n\r\nBackground\r\n\r\nIn May 2019, under the CSIRO-MDBA | 29 | project.\r\n\r\nBackground\r\n\r\nIn May 2019, under the CSIRO-MDBA | ||
30 | (Murray-Darling Basin Authority) Partnership Agreement, a project to | 30 | (Murray-Darling Basin Authority) Partnership Agreement, a project to | ||
31 | quantify total water losses or evapotranspiration (ET) from key | 31 | quantify total water losses or evapotranspiration (ET) from key | ||
32 | floodplain vegetation located over saline groundwater within the | 32 | floodplain vegetation located over saline groundwater within the | ||
33 | Murray-Darling Basin (MDB) began. Lack of woody vegetation ET data has | 33 | Murray-Darling Basin (MDB) began. Lack of woody vegetation ET data has | ||
34 | been identified as a significant knowledge gap in the ability to | 34 | been identified as a significant knowledge gap in the ability to | ||
35 | understand and model salt mobilisation in the lower Murray. Numerical | 35 | understand and model salt mobilisation in the lower Murray. Numerical | ||
36 | models inform management decisions by simulating the movement of water | 36 | models inform management decisions by simulating the movement of water | ||
37 | and salt within the floodplain and river channel environment. The aim | 37 | and salt within the floodplain and river channel environment. The aim | ||
38 | of this study, therefore, was to provide robust field data of woody | 38 | of this study, therefore, was to provide robust field data of woody | ||
39 | vegetation ET, to improve river and saline floodplain management as | 39 | vegetation ET, to improve river and saline floodplain management as | ||
40 | well as improve the accuracy of ET data used in numerical models. The | 40 | well as improve the accuracy of ET data used in numerical models. The | ||
41 | field data has been used to further develop a model to predict | 41 | field data has been used to further develop a model to predict | ||
42 | quantified spatial monthly timeseries ET outputs from 2000 onwards, | 42 | quantified spatial monthly timeseries ET outputs from 2000 onwards, | ||
43 | for floodplain trees across the MDB.\r\n\r\nImplications of management | 43 | for floodplain trees across the MDB.\r\n\r\nImplications of management | ||
44 | watering actions field locations have intentionally been selected in | 44 | watering actions field locations have intentionally been selected in | ||
45 | areas where there are predicted management actions in the future. This | 45 | areas where there are predicted management actions in the future. This | ||
46 | includes salt interception scheme manipulation to vary scheme | 46 | includes salt interception scheme manipulation to vary scheme | ||
47 | operation, as well monitoring the influence of environmental flow | 47 | operation, as well monitoring the influence of environmental flow | ||
48 | actions on floodplain vegetation ET and hence response of trees to | 48 | actions on floodplain vegetation ET and hence response of trees to | ||
49 | altered water availability, highlighting tree water stress changes. | 49 | altered water availability, highlighting tree water stress changes. | ||
50 | Sites likely to be responding to environmental flow allocations | 50 | Sites likely to be responding to environmental flow allocations | ||
51 | include the Bookpurnong Red Gum and Black Box, Calperum Red Gum site, | 51 | include the Bookpurnong Red Gum and Black Box, Calperum Red Gum site, | ||
52 | Calperum Site 1 and the Lindsay flushed zone site which are likely to | 52 | Calperum Site 1 and the Lindsay flushed zone site which are likely to | ||
53 | have benefited from the 2020 River Murray \u2018southern spring | 53 | have benefited from the 2020 River Murray \u2018southern spring | ||
54 | flow\u2019. The Lindsay wet site also received water in the adjacent | 54 | flow\u2019. The Lindsay wet site also received water in the adjacent | ||
55 | creek in spring/summer 2020 and 2021 related to the southern spring | 55 | creek in spring/summer 2020 and 2021 related to the southern spring | ||
56 | flow. All sites were inundated with the natural River Murray flood | 56 | flow. All sites were inundated with the natural River Murray flood | ||
57 | event in the summer of 2022-23.\r\n\r\nAfter four years (2019-2024) of | 57 | event in the summer of 2022-23.\r\n\r\nAfter four years (2019-2024) of | ||
58 | monitoring and model refinements, we can present robust data and | 58 | monitoring and model refinements, we can present robust data and | ||
59 | modelling results of tree ET during managed and natural river flow | 59 | modelling results of tree ET during managed and natural river flow | ||
60 | events. New insights into information about groundwater extraction | 60 | events. New insights into information about groundwater extraction | ||
61 | from tree ET processes on the floodplain will also be shared. Further | 61 | from tree ET processes on the floodplain will also be shared. Further | ||
62 | information is also available in the journal article below and is | 62 | information is also available in the journal article below and is | ||
63 | freely available to access:\r\n\r\nDoody TM, Gao S, Vervoort W, | 63 | freely available to access:\r\n\r\nDoody TM, Gao S, Vervoort W, | ||
64 | Pritchard JL, Davies MJ, Nolan M, Nagler P. 2023. A river basin scale | 64 | Pritchard JL, Davies MJ, Nolan M, Nagler P. 2023. A river basin scale | ||
65 | spatial model to advance understanding of riverine tree response to | 65 | spatial model to advance understanding of riverine tree response to | ||
66 | hydrological management. Journal of Environmental Management, 332, | 66 | hydrological management. Journal of Environmental Management, 332, | ||
67 | https://doi.org/10.1016/j.jenvman.2023.117393\r\n\r\n", | 67 | https://doi.org/10.1016/j.jenvman.2023.117393\r\n\r\n", | ||
68 | "notes_additional": "", | 68 | "notes_additional": "", | ||
n | 69 | "num_resources": 0, | n | 69 | "num_resources": 1, |
70 | "num_tags": 3, | 70 | "num_tags": 3, | ||
71 | "organization": { | 71 | "organization": { | ||
72 | "approval_status": "approved", | 72 | "approval_status": "approved", | ||
73 | "created": "2023-10-20T13:46:03.974904", | 73 | "created": "2023-10-20T13:46:03.974904", | ||
74 | "description": "The MDBA was established under the federal Water | 74 | "description": "The MDBA was established under the federal Water | ||
75 | Act 2007 as an independent, expertise-based statutory agency; our role | 75 | Act 2007 as an independent, expertise-based statutory agency; our role | ||
76 | includes advising a six-member Authority, of which our Chief Executive | 76 | includes advising a six-member Authority, of which our Chief Executive | ||
77 | is a member, about Basin-wide strategy, policy and | 77 | is a member, about Basin-wide strategy, policy and | ||
78 | planning.\r\n\r\nThe MDBA undertakes activities that support the | 78 | planning.\r\n\r\nThe MDBA undertakes activities that support the | ||
79 | sustainable and integrated management of the water resources of the | 79 | sustainable and integrated management of the water resources of the | ||
80 | Murray\u2013Darling Basin in a way that best meets the social, | 80 | Murray\u2013Darling Basin in a way that best meets the social, | ||
81 | economic and environmental needs of the Basin and its | 81 | economic and environmental needs of the Basin and its | ||
82 | communities.\r\n\r\nWe lead the planning and management of Basin water | 82 | communities.\r\n\r\nWe lead the planning and management of Basin water | ||
83 | resources, and coordinate and maintain collaborative long-term | 83 | resources, and coordinate and maintain collaborative long-term | ||
84 | strategic relationships with other Australian Government, Basin state | 84 | strategic relationships with other Australian Government, Basin state | ||
85 | government and local agencies; industry groups; scientists and | 85 | government and local agencies; industry groups; scientists and | ||
86 | research organisations.\r\n\r\nThe Water Act requires the MDBA to | 86 | research organisations.\r\n\r\nThe Water Act requires the MDBA to | ||
87 | undertake a number of functions:\r\n\r\nconstruct and operate River | 87 | undertake a number of functions:\r\n\r\nconstruct and operate River | ||
88 | Murray assets such as dams and weirs\r\ndevelop the proposed Basin | 88 | Murray assets such as dams and weirs\r\ndevelop the proposed Basin | ||
89 | Plan\r\nadvise the Commonwealth Minister for Water on the | 89 | Plan\r\nadvise the Commonwealth Minister for Water on the | ||
90 | accreditation of state water resource plans\r\ndevelop a water rights | 90 | accreditation of state water resource plans\r\ndevelop a water rights | ||
91 | information service that facilitates water trading across the | 91 | information service that facilitates water trading across the | ||
92 | Basin\r\nmanage water sharing between the states\r\nmanage all aspects | 92 | Basin\r\nmanage water sharing between the states\r\nmanage all aspects | ||
93 | of Basin water resources, including water, organisms and other | 93 | of Basin water resources, including water, organisms and other | ||
94 | components and ecosystems that contribute to the physical state and | 94 | components and ecosystems that contribute to the physical state and | ||
95 | environmental value of the Basin's water resources\r\nmeasure and | 95 | environmental value of the Basin's water resources\r\nmeasure and | ||
96 | monitor water resources in the Basin\r\ngather information and | 96 | monitor water resources in the Basin\r\ngather information and | ||
97 | undertake research\r\nengage and educate the community in the | 97 | undertake research\r\nengage and educate the community in the | ||
98 | management of the Basin's resources.\r\nWe carry out these functions | 98 | management of the Basin's resources.\r\nWe carry out these functions | ||
99 | directly and through Basin state government agencies in partnership | 99 | directly and through Basin state government agencies in partnership | ||
100 | with the Australian Government.", | 100 | with the Australian Government.", | ||
101 | "id": "4f38bcee-7029-4f04-8f71-00b19c1a896c", | 101 | "id": "4f38bcee-7029-4f04-8f71-00b19c1a896c", | ||
102 | "image_url": "2023-10-20-024603.966736MDBA-logo---inline-1.png", | 102 | "image_url": "2023-10-20-024603.966736MDBA-logo---inline-1.png", | ||
103 | "is_organization": true, | 103 | "is_organization": true, | ||
104 | "name": "murray-darling-basin-authority", | 104 | "name": "murray-darling-basin-authority", | ||
105 | "state": "active", | 105 | "state": "active", | ||
106 | "title": "Murray-Darling Basin Authority", | 106 | "title": "Murray-Darling Basin Authority", | ||
107 | "type": "organization" | 107 | "type": "organization" | ||
108 | }, | 108 | }, | ||
109 | "owner_org": "4f38bcee-7029-4f04-8f71-00b19c1a896c", | 109 | "owner_org": "4f38bcee-7029-4f04-8f71-00b19c1a896c", | ||
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114 | { | ||||
115 | "cache_last_updated": null, | ||||
116 | "cache_url": null, | ||||
117 | "created": "2024-10-16T01:42:25.260260", | ||||
118 | "description": "Ecological condition continues to decline in | ||||
119 | arid and semi-arid river basins globally due to hydrological | ||||
120 | over-abstraction combined with changing climatic conditions. Whilst | ||||
121 | provision of water for the environment has been a primary approach to | ||||
122 | alleviate ecological decline, how to accurately monitor changes in | ||||
123 | riverine trees at fine spatial and temporal scales, remains a | ||||
124 | substantial challenge. This is further complicated by constantly | ||||
125 | changing water availability across expansive river basins with varying | ||||
126 | climatic zones. Within, we combine rare, fine-scale, high frequency | ||||
127 | temporal in-situ field collected data with machine learning and remote | ||||
128 | sensing, to provide a robust model that enables broadscale monitoring | ||||
129 | of physiological tree water stress response to environmental changes | ||||
130 | via actual evapotranspiration (ET). Physiological variation of | ||||
131 | Eucalyptus camaldulensis (River Red Gum) and E. largiflorens (Black | ||||
132 | Box) trees across 10 study locations in the southern Murray-Darling | ||||
133 | Basin, Australia, was captured instantaneously using sap flow sensors, | ||||
134 | substantially reducing tree response lags encountered by monitoring | ||||
135 | visual canopy changes. Actual ET measurement of both species was used | ||||
136 | to bias correct a national spatial ET product where a Random Forest | ||||
137 | model was trained using continuous timeseries of in-situ data of up to | ||||
138 | four years. Precise monthly AMLETT (Australia-wide Machine Learning ET | ||||
139 | for Trees) ET outputs in 30 m pixel resolution from 2012 to 2021, were | ||||
140 | derived by incorporating additional remote sensing layers such as soil | ||||
141 | moisture, land surface temperature, radiation and EVI and NDVI in the | ||||
142 | Random Forest model. Landsat and Sentinal-2 correlation results | ||||
143 | between in-situ ET and AMLETT ET returned R2 of 0.94 (RMSE 6.63 mm | ||||
144 | period\u22121) and 0.92 (RMSE 6.89 mm period\u22121), respectively. In | ||||
145 | comparison, correlation between in-situ ET and a national ET product | ||||
146 | returned R2 of 0.44 (RMSE 34.08 mm period\u22121) highlighting the | ||||
147 | need for bias correction to generate accurate absolute ET values. The | ||||
148 | AMLETT method presented here, enhances environmental management in | ||||
149 | river basins worldwide. Such robust broadscale monitoring can inform | ||||
150 | water accounting and importantly, assist decisions on where to | ||||
151 | prioritize water for the environment to restore and protect key | ||||
152 | ecological assets and preserve floodplain and riparian ecological | ||||
153 | function.", | ||||
154 | "format": "HTML", | ||||
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158 | "metadata_modified": "2024-10-16T01:42:25.244708", | ||||
159 | "mimetype": null, | ||||
160 | "mimetype_inner": null, | ||||
161 | "name": "A river basin spatial model to quantitively advance | ||||
162 | understanding of riverine tree response dynamics to water availability | ||||
163 | and hydrological management", | ||||
164 | "package_id": "a201d673-20b9-4140-bd87-626c268a352c", | ||||
165 | "position": 0, | ||||
166 | "resource_type": null, | ||||
167 | "size": null, | ||||
168 | "state": "active", | ||||
169 | "url": | ||||
170 | w.sciencedirect.com/science/article/pii/S0301479723001810?via%3Dihub", | ||||
171 | "url_type": null | ||||
172 | } | ||||
173 | ], | ||||
114 | "state": "draft", | 174 | "state": "draft", | ||
115 | "tags": [ | 175 | "tags": [ | ||
116 | { | 176 | { | ||
117 | "display_name": "Basin Salinity Management 2030 strategy", | 177 | "display_name": "Basin Salinity Management 2030 strategy", | ||
118 | "id": "19dbff63-22fe-40dc-bb4b-45dce4145c01", | 178 | "id": "19dbff63-22fe-40dc-bb4b-45dce4145c01", | ||
119 | "name": "Basin Salinity Management 2030 strategy", | 179 | "name": "Basin Salinity Management 2030 strategy", | ||
120 | "state": "active", | 180 | "state": "active", | ||
121 | "vocabulary_id": null | 181 | "vocabulary_id": null | ||
122 | }, | 182 | }, | ||
123 | { | 183 | { | ||
124 | "display_name": "Evapotranspiration", | 184 | "display_name": "Evapotranspiration", | ||
125 | "id": "dc7fec8b-0a29-4e2d-8dfe-35959eb4916e", | 185 | "id": "dc7fec8b-0a29-4e2d-8dfe-35959eb4916e", | ||
126 | "name": "Evapotranspiration", | 186 | "name": "Evapotranspiration", | ||
127 | "state": "active", | 187 | "state": "active", | ||
128 | "vocabulary_id": null | 188 | "vocabulary_id": null | ||
129 | }, | 189 | }, | ||
130 | { | 190 | { | ||
131 | "display_name": "Knowledge priority", | 191 | "display_name": "Knowledge priority", | ||
132 | "id": "6eade559-ed22-407f-83e5-07960143c2ec", | 192 | "id": "6eade559-ed22-407f-83e5-07960143c2ec", | ||
133 | "name": "Knowledge priority", | 193 | "name": "Knowledge priority", | ||
134 | "state": "active", | 194 | "state": "active", | ||
135 | "vocabulary_id": null | 195 | "vocabulary_id": null | ||
136 | } | 196 | } | ||
137 | ], | 197 | ], | ||
138 | "title": "Floodplain Woody Vegetation Evapotranspiration project", | 198 | "title": "Floodplain Woody Vegetation Evapotranspiration project", | ||
139 | "type": "dataset", | 199 | "type": "dataset", | ||
140 | "url": null, | 200 | "url": null, | ||
141 | "version": "" | 201 | "version": "" | ||
142 | } | 202 | } |