Evidence of Alleged Unlawful Clearing by Mr Turnbull
22The OEH relied on a trio of affidavits to support their submission that not only was there a serious question to be tried, namely, an actual contravention of the NVA but, moreover, that the balance of convenience favoured the granting of the injunction.
23The first affidavit was that of Mr Paul Spiers, affirmed 12 September 2014. Mr Spiers is employed as a Natural Resource Officer by OEH. Mr Spiers has particular skills in aerial photography interpretation. His qualifications and expertise were not in dispute.
24Using aerial photographs and satellite images obtained by him, Mr Spiers was able to make the following observations:
(a)that between 5 January 2013 and 14 May 2014, approximately 221ha comprising mid dense to sparse tree cover had been cleared on Colorado. These areas had remnants of the trees removed and had been subject to cultivation. Of this area, approximately 218ha comprised the area referred to as B1 in Annexure 'A'; and
(b)that between 14 May 2014 and 20 August 2014 extensive areas of clearing totalling 286ha had occurred over most of Lot 17 of DP 755998 of Colorado. In these areas, all remnants of the trees had been removed and the growth of ground cover was consistent with the emergence of a crop. The areas were shown on a map attached to Mr Spiers' expert report and are annexed to this judgment at Annexure 'D'. As Annexure 'D' demonstrates, polygons 26 and 27 comprising approximately 198ha are covered almost exclusively by the remedial area ordered by the Court in Turnbull (No 2) on 31 July 2014. This remediation area covered 279ha, and the 198ha of its area cleared amounted to approximately 66% of the remediation area. Importantly, from the images Mr Spiers analysed, he was able to ascertain that:
(i)polygon 26, covering the western part of the remediation area, or C3, was cleared between 1 July 2014 and 17 July 2014; and
(ii)polygon 27, or C4, was cleared between 17 July 2014 and 2 August 2014. However, according to Mr Spiers, it was not possible to identify whether any clearing had occurred between 31 July 2014 (the date of the final remediation directions made by the Court) and 2 August 2014 (the date of the aerial image to which he had regard).
25Mr Spiers was not required for cross-examination.
26Second, OEH relied upon an affidavit of Mr Terry Mazzer affirmed on 12 September 2014. Mr Mazzer is a Conservation Planning Officer employed by OEH. Relevantly for present purposes, Mr Mazzer was requested to provide his expert opinion on the following matters:
(a)whether there had been any clearing of native vegetation within the meaning of the NVA on Colorado;
(b)whether or not the cleared vegetation was "regrowth" within the meaning of the NVA;
(c)the location of the native vegetation cleared on the property;
(d)the environmental impact of the clearing of the vegetation at the local and landscape scale. A copy of an aerial image identical to Annexure 'A' was provided to Mr Mazzer, but with an additional cleared area marked on the image (area A, allegedly cleared between 1 June 2012 and 5 January 2013, and which is currently the subject of separate investigation and proceedings and which does not form part of these proceedings); and
(e)whether remediation or rehabilitation of the cleared area was viable.
27Mr Mazzer concluded that this cleared vegetation constituted native vegetation within the meaning of the NVA. He was also able to correlate the clearing of the native vegetation to the areas marked on the aerial image at Annexure 'A'. Further, at paragraphs 27 to 29 of his report he opined that the size of the trees that appeared to have been cleared indicated that they would have been present prior to 1990, and hence, that the vegetation cleared was remnant native vegetation under the Act, and thus, not regrowth as defined.
28Mr Turnbull submitted that Mr Mazzer's conclusion in this regard was equivocal, given the limited inspection undertaken by him of the property for this purpose and given his reliance on the results of vegetation transects undertaken by a third person (Mr Peter Hall) for a different purpose (the mapping of koala habitat). But in my opinion, in light of the unchallenged nature of this evidence (Mr Mazzer was also not cross-examined), it was sufficient for present purposes.
29Hence the Court finds that, for the purpose of this application, the cleared vegetation was not "regrowth", and therefore, was not the subject of an exemption under the NVA.
30While Mr Mazzer was not in a position to form a complete view about the impact of clearing at the local and landscape scale, the clearing in the areas he examined was, according to him, likely to have caused environmental harm. The reasons for this included, that the clearing had caused fragmentation of habitat and that some of the vegetation cleared may have been of a type which could be classified as an endangered ecological community under the Threatened Species Conservation Act 1995. Furthermore, he was of the view that if the clearing continued, it would be likely to cause additional harm because it would prevent natural regeneration from occurring at the cleared sites.
31As to whether remediation of the cleared areas was viable, Mr Mazzer stated that it was. He gave the following written evidence:
38. Given the scale and expected impacts of the clearing remediation is required, and is likely to be feasible, although there are risks of not being able to restore all the vegetation types that were cleared, given that the largest area (B1) has been ploughed and sown to field crops. Areas C1 to C6 have only been ploughed on one occasion, to my knowledge, and so are more likely to regenerate successful [sic].
39. The most important aspect of allowing future natural regeneration is to prevent further damage to the areas cleared. This would entail:
● no further removal of remaining remnant vegetation,
● no further removal of scattered paddock trees,
● protection of paddock trees by removal of woody debris from their proximity,
● no further ground disturbance of cleared areas,
● no spraying of herbicide to kill native woody or herbaceous regeneration, and
● prevention of harvesting of the crop sown in area B1.
40. However, even in areas that have been ploughed some species, (e.g. Brigalow) are likely to regenerate, at least to a limited extent from root suckers (i.e. shoots arising from intact roots). A small number of individuals which were probably root suckers were observed under one of the scattered Brigalow (that shown in Photograph TM04). It is likely that some roots will remain intact, at depth, even in areas where the soil surface has been ploughed and sown to a crop. There are also scattered paddock trees to serve as limited seed sources within this area and potentially seed from woody species remaining within the soil profile.
41. Therefore, I form the opinion that there are likely to be sufficient roots of Brigalow plants, and seed of other canopy species, that are intact to enable regeneration in at least some areas.
42. Regeneration of most ground cover species should not be a problem because seeds are likely to persist in the soil.
43. Control of African Boxthorn, using spot-spraying with herbicides, will be essential in the Remediation Area.
32Attached to Mr Mazzer's affidavit were photographs taken on 10 September 2014, that indicated cleared land and the planting of a crop.
33Finally, OEH drew support from the affidavit of Dr Christopher Nadolny, affirmed 22 September 2014, as to the current state of the vegetation and potential for remediation in areas B and C of Annexure 'A'. Dr Nadolny gave the following evidence:
(a)area B, which mostly comprised area B1, had been cleared of standing vegetation, with the exception of a few scattered large trees and had been "sown to a cereal crop in late autumn [of 2014]". Before the area had been sown it had been prepared for cropping and based on the absence of broad-leaved weeds from the crop, it was almost certain that selective herbicides had been used. Although as at the date of the affidavit very few native plants had regenerated, Brigalow shoots were beginning to emerge in one location;
(b)in the absence of any action interfering with regeneration, he expected that substantial regeneration of key woody native plants would occur in the next few months. In addition, substantial regeneration of native grasses and broad-leaved plants was also likely to occur, depending on seasonal conditions; and
(c)in area C, he noted that, in general, standing vegetation had been removed with only a few trees being retained. However, he expected the regeneration of woody native plants, assuming further action to harm regeneration was prevented, would occur and that the regeneration would be even more prolific than that occurring in area B. In addition, native groundcover would regenerate fairly readily, depending on what herbicides had been used and on seasonal conditions.
34In relation to the application of herbicides, Dr Nadolny noted that herbicides had the potential to eliminate regenerating native trees, shrubs and groundcover of plants. Dr Nadolny observed that Mr Turnbull had previously attested to having selectively applied herbicides on standing crops and either before sowing, or following the harvest of, crops. In particular, a herbicide treatment in March 2014 included the use of Tordon 75-D, which contains the active ingredients Picloram and 2,4-D. This herbicide was used against a range of broad-leaved weeds but would also be effective against regenerating woody plants, especially where such foliage was directly sprayed. It was a matter of concern to Dr Nadolny that Picloram remains active in the soil for a considerable time after use. However, depending on its concentration, although it was likely that the herbicide would have some residual effects, it was unlikely that those effects would be prolonged. Nevertheless, the use of herbicides associated with normal farming operations had the potential to severely reduce the likelihood that native woody species would regenerate successfully, even without any action by the landholder to specifically treat areas of woody regeneration.
35According to Dr Nadolny, soil disturbance, particularly from plowing for the preparation of cropping, would result in the destruction of most regenerating woody plants. This adverse impact was augmented when combined with the use of herbicides. This was important because particularly in areas C5 and C6 there were significant fragments of woody plants, including pieces of roots, which, if not dried out, could have the potential to regenerate.
36Dr Nadolny also opined that intensive grazing (that is to say, normal commercial grazing) was likely to result in a significant "set back" in the rate of regeneration of native woody plants and could result in a semi-permanent loss of seedling trees. He acknowledged, however, that if the livestock was primarily grazing on this cereal crop that had been sown, then the likely impacts of light to moderate grazing were much less than the impact that would be expected from the continuation of farming.
37Finally, Dr Nadolny stated that the fact that natural regeneration had been eliminated on other parts of Colorado that had been cleared and cropped in 2012 and 2013 provided an example of what could be expected to occur if normal farming practice was allowed to continue. In short, the potential for woody regeneration was lost rapidly if areas were repeatedly cleared and cropped. In this regard, Dr Nadolny was specifically concerned with the significant cumulative impacts of various episodes of clearing on Colorado.
38The evidence of Dr Nadolny was uncontested.
39With the exception of evidence demonstrating delay by OEH in filing the summons and applying for the interlocutory relief, Mr Turnbull did not offer any evidence to the Court. From the bar table it was stated that Mr Turnbull's wife was seriously ill, however, no application for an adjournment of the proceedings on that basis (or any other basis) was made by Mr Turnbull.
40In particular, no evidence was presented by Mr Turnbull as to the adverse impacts, if any, that the granting of the injunction would have on him.