Changes

              
    

          
          
        
        

            
f
1
{
f
1
{
            
2
  "agreement": "true",
2
  "agreement": "true",
            
3
  "alternative_identifier": "ISBN 978-1-4312-0607-0",
3
  "alternative_identifier": "ISBN 978-1-4312-0607-0",
            
4
  "author": null,
4
  "author": null,
            
5
  "author_email": null,
5
  "author_email": null,
            
6
  "authors": [
6
  "authors": [
            
7
    {
7
    {
            
8
      "author_department": "Plant Production and Soil Science",
8
      "author_department": "Plant Production and Soil Science",
            
9
      "author_email": "orders@wrc.org.za",
9
      "author_email": "orders@wrc.org.za",
            
10
      "author_name": "Michael",
10
      "author_name": "Michael",
            
11
      "author_organization": "University of Pretoria",
11
      "author_organization": "University of Pretoria",
            
12
      "author_surname": "van der Laan",
12
      "author_surname": "van der Laan",
            
13
      "contact_same_as_author": "true"
13
      "contact_same_as_author": "true"
            
14
    }
14
    }
            
15
  ],
15
  ],
            
16
  "citation_title": "VAN DER LAAN M, FEY MV, VAN DER BURGH G, DE JAGER 
16
  "citation_title": "VAN DER LAAN M, FEY MV, VAN DER BURGH G, DE JAGER 
            
17
PC, ANNANDALE JG and DU PLESSIS HM (2014) Feasibility study on the use 
17
PC, ANNANDALE JG and DU PLESSIS HM (2014) Feasibility study on the use 
            
18
of irrigation as part of a long-term acid mine water management 
18
of irrigation as part of a long-term acid mine water management 
            
19
strategy in the Vaal Basin. WRC Report No. 2233/1/14. Water Research 
19
strategy in the Vaal Basin. WRC Report No. 2233/1/14. Water Research 
            
20
Commission, Pretoria.",
20
Commission, Pretoria.",
            
21
  "contact_person": [
21
  "contact_person": [
            
22
    {
22
    {
            
23
      "contact_department": "Plant Production and Soil Science",
23
      "contact_department": "Plant Production and Soil Science",
            
24
      "contact_email": "orders@wrc.org.za",
24
      "contact_email": "orders@wrc.org.za",
            
25
      "contact_name": "Michael",
25
      "contact_name": "Michael",
            
26
      "contact_orgnization": "University of Pretoria"
26
      "contact_orgnization": "University of Pretoria"
            
27
    }
27
    }
            
28
  ],
28
  ],
            
29
  "creator_user_id": "bc28a33f-dc21-4795-a57f-da7cd1aa23ea",
29
  "creator_user_id": "bc28a33f-dc21-4795-a57f-da7cd1aa23ea",
            
30
  "data_classification": "both",
30
  "data_classification": "both",
            
31
  "data_collection_organization": "University of Pretoria",
31
  "data_collection_organization": "University of Pretoria",
            
n
32
  "data_reference_date": [
n

            
33
    {

            
34
      "data_reference_date_from": "2012-01-01",

            
35
      "data_reference_date_to": "2014-12-31"

            
36
    }

            
37
  ],

            
38
  "data_structure_category": "structured",
32
  "data_structure_category": "structured",
            
39
  "dataset_language": "English",
33
  "dataset_language": "English",
            
40
  "dataset_license_url": 
34
  "dataset_license_url": 
            
41
"https://creativecommons.org/licenses/by-sa/4.0/",
35
"https://creativecommons.org/licenses/by-sa/4.0/",
            
42
  "did_author_or_contact_organization_collect_the_data": "true",
36
  "did_author_or_contact_organization_collect_the_data": "true",
            
43
  "email": "orders@wrc.org.za",
37
  "email": "orders@wrc.org.za",
            
n
n
38
  "extras": [
            
39
    {
            
40
      "key": "data_reference_date_from",
            
41
      "value": "2012-01-01"
            
42
    },
            
43
    {
            
44
      "key": "data_reference_date_to",
            
45
      "value": "2014-12-31"
            
46
    }
            
47
  ],
            
44
  "groups": [],
48
  "groups": [
            
49
    {
            
50
      "description": "",
            
51
      "display_name": "Mine-affected waters",
            
52
      "id": "adbe335a-7f8a-43fc-a0db-a906bddf58e5",
            
53
      "image_display_url": "",
            
54
      "name": "mine-affected-waters",
            
55
      "title": "Mine-affected waters"
            
56
    }
            
57
  ],
            
45
  "id": "4326398d-14e0-470e-9fef-412dd8c4fe33",
58
  "id": "4326398d-14e0-470e-9fef-412dd8c4fe33",
            
46
  "isopen": false,
59
  "isopen": false,
            
47
  "keywords": "acid mine drainage, mine water irrigation, Vaal Basin",
60
  "keywords": "acid mine drainage, mine water irrigation, Vaal Basin",
            
48
  "license": "Open (Creative Commons)",
61
  "license": "Open (Creative Commons)",
            
49
  "license_id": null,
62
  "license_id": null,
            
50
  "license_title": null,
63
  "license_title": null,
            
51
  "maintainer": null,
64
  "maintainer": null,
            
52
  "maintainer_email": null,
65
  "maintainer_email": null,
            
53
  "metadata_created": "2026-03-02T14:28:58.324142",
66
  "metadata_created": "2026-03-02T14:28:58.324142",
            
n
54
  "metadata_modified": "2026-03-02T14:28:58.324150",
n
67
  "metadata_modified": "2026-11-06T06:15:45.478841",
            
55
  "minimum_maximum_extent": [
68
  "minimum_maximum_extent": [
            
56
    {
69
    {
            
57
      "maximum_vertical_extent": "3451",
70
      "maximum_vertical_extent": "3451",
            
58
      "minimum_vertical_extent": "0"
71
      "minimum_vertical_extent": "0"
            
59
    }
72
    }
            
60
  ],
73
  ],
            
61
  "name": 
74
  "name": 
            
62
rrigation-for-long-term-acid-mine-water-management-in-the-vaal-basin",
75
rrigation-for-long-term-acid-mine-water-management-in-the-vaal-basin",
            
63
  "notes": "This dataset was generated as part of a feasibility study 
76
  "notes": "This dataset was generated as part of a feasibility study 
            
64
investigating irrigation as a long-term acid mine water management 
77
investigating irrigation as a long-term acid mine water management 
            
65
strategy in the Vaal Basin, South Africa.",
78
strategy in the Vaal Basin, South Africa.",
            
n
66
  "num_resources": 0,
n
79
  "num_resources": 1,
            
67
  "num_tags": 0,
80
  "num_tags": 0,
            
68
  "organization": {
81
  "organization": {
            
69
    "approval_status": "approved",
82
    "approval_status": "approved",
            
70
    "created": "2026-02-19T10:16:04.079269",
83
    "created": "2026-02-19T10:16:04.079269",
            
71
    "description": "The University of Pretoria (UP) is one of 
84
    "description": "The University of Pretoria (UP) is one of 
            
72
Africa\u2019s top universities and the largest contact university in 
85
Africa\u2019s top universities and the largest contact university in 
            
73
South Africa. We produce socially impactful research to find solutions 
86
South Africa. We produce socially impactful research to find solutions 
            
74
for the world\u2019s most pressing issues. We have a high quality of 
87
for the world\u2019s most pressing issues. We have a high quality of 
            
75
teaching and learning in the classroom, online, or in communities. We 
88
teaching and learning in the classroom, online, or in communities. We 
            
76
have support in place for our students to graduate on time as 
89
have support in place for our students to graduate on time as 
            
77
well-rounded, responsible citizens fully prepared for the world beyond 
90
well-rounded, responsible citizens fully prepared for the world beyond 
            
78
university.",
91
university.",
            
79
    "id": "149918e1-73c3-463f-a6fe-401915e67e0f",
92
    "id": "149918e1-73c3-463f-a6fe-401915e67e0f",
            
80
    "image_url": "2026-02-19-101604.068497UPlogo.jpg",
93
    "image_url": "2026-02-19-101604.068497UPlogo.jpg",
            
81
    "is_organization": true,
94
    "is_organization": true,
            
82
    "name": "university-of-pretoria",
95
    "name": "university-of-pretoria",
            
83
    "state": "active",
96
    "state": "active",
            
84
    "title": "University of Pretoria",
97
    "title": "University of Pretoria",
            
85
    "type": "organization"
98
    "type": "organization"
            
86
  },
99
  },
            
87
  "owner_org": "149918e1-73c3-463f-a6fe-401915e67e0f",
100
  "owner_org": "149918e1-73c3-463f-a6fe-401915e67e0f",
            
88
  "private": false,
101
  "private": false,
            
89
  "publication_date": "2014-12-01",
102
  "publication_date": "2014-12-01",
            
90
  "publisher": "Water Research Commission",
103
  "publisher": "Water Research Commission",
            
91
  "relationships_as_object": [],
104
  "relationships_as_object": [],
            
92
  "relationships_as_subject": [],
105
  "relationships_as_subject": [],
            
t
93
  "resources": [],
t
106
  "resources": [
            
94
  "spatial": "{\"type\": \"Polygon\", \"coordinates\": [[[26.5, 
107
    {
            
95
-26.9], [29.5, -26.9], [29.5, -28.5], [26.5, -28.5], [26.5, 
108
      "cache_last_updated": null,
            
96
-26.9]]]}",
109
      "cache_url": null,
            
110
      "created": "2026-11-06T06:15:45.490777",
            
111
      "dataset_description": "Data harvested from WRC Report 2233/1/14 
            
112
(van der Laan et al., 2014), a study of irrigation as part of a 
            
113
long-term acid mine water management strategy in the Vaal Basin. The 
            
114
11 Excel workbooks cover:\r\n\r\n- Witwatersrand goldfields mine water 
            
115
quality, by basin and at DWA monitoring points with coordinates 
            
116
(1999\u20132010).\r\n- Lime, limestone and alum\u00ednium sulfate 
            
117
treatment calculations and bench trials.\r\n- Leachate chemistry, soil 
            
118
properties and PHREEQC speciation from laboratory simulations of land 
            
119
treatment on mine tailings, a black clay and a red loam.\r\n- SWB-Sci 
            
120
crop model inputs and simulated wheat, maize and soybean yields, 
            
121
irrigation requirements and salt balances.\r\n- A life cycle 
            
122
comparison of reverse osmosis and irrigation.\r\n- An economic 
            
123
evaluation with projected gross margins for 2014\u20132018.",
            
124
      "description": null,
            
125
      "download_count": "0",
            
126
      "format": "zip",
            
127
      "hash": "",
            
128
      "id": "1db51027-d1c5-4f4b-b640-5a75d1354bfc",
            
129
      "is_data_supplementary": "False",
            
130
      "last_modified": "2026-11-06T06:15:45.470289",
            
131
      "metadata_modified": "2026-11-06T06:15:45.485260",
            
132
      "mimetype": "application/zip",
            
133
      "mimetype_inner": null,
            
134
      "name": "WRC_2233-1-14_mine_water_irrigation_data.zip",
            
135
      "package_id": "4326398d-14e0-470e-9fef-412dd8c4fe33",
            
136
      "position": 0,
            
137
      "resource_name": "Mine water irrigation feasibility data \u2013 
            
138
Witwatersrand goldfields (WRC Report 2233/1/14)",
            
139
      "resource_type": null,
            
140
      "size": 274785,
            
141
      "state": "active",
            
142
      "url": 
            
143
0-5a75d1354bfc/download/wrc_2233-1-14_mine_water_irrigation_data.zip",
            
144
      "url_type": "upload",
            
145
      "zipped_file": "False"
            
146
    }
            
147
  ],
            
97
  "state": "active",
148
  "state": "active",
            
98
  "tags": [],
149
  "tags": [],
            
99
  "title": "Feasibility study on irrigation for long-term acid mine 
150
  "title": "Feasibility study on irrigation for long-term acid mine 
            
100
water management in the Vaal Basin",
151
water management in the Vaal Basin",
            
101
  "type": "dataset",
152
  "type": "dataset",
            
102
  "uploader_estimation_of_extent_of_processing": "refined",
153
  "uploader_estimation_of_extent_of_processing": "refined",
            
103
  "url": null,
154
  "url": null,
            
104
  "version": null,
155
  "version": null,
            
105
  "vertical_extent_datum": "masl",
156
  "vertical_extent_datum": "masl",
            
106
  "wrc_project_number": "K5/2233//3",
157
  "wrc_project_number": "K5/2233//3",
            
107
  "wro_theme": "inlandWaters"
158
  "wro_theme": "inlandWaters"
            
108
}
159
}