spesiale verwysing na grondwaterontrekking en aanvulling, distrik:
Warmbad/Waterberg 1992.Anonymous Department of Water Affairs and Forestry.
GH3787, 1992.
Reprint : Not in File,
Notes : DWAF technical report no. GH 3787.
Ref ID : 2165
1506. Nel, M. Grootvlei saga continues. African Wildlife 51(6):6-9, 1997.
Reprint : Not in File,
Ref ID : 209
1507. Nel, N. Veld condition in South Africa. Part 3. Desert danger is
overrated. Farmer's Weekly :22-24, 1991. Makes the point (p.22): "However, these
preditions [of an expanding Karoo] were primarily based on conditions prevailing
before the late 1940's when the vegetation cover in the arid regions was
generally relatively sparse and soil erosion occurred at a higher rate (Roux &
Vorster, 1983) than today....but this relatively well-established school of
thought is today no longer as valid as 40 years ago, although a considerable
deterioratin in the vegetation certainly did take place. "IT IS TIME WE
DISCARDED THE NOTION THAT SA IS BECOMING A DESERT OR IS BEING OVERRUN BY
WORTHLESS KAROO VEGETATION". I.
Reprint : In File,
Keywords : KAROO DESERTIFICATION; VELD CONDITION; NAMA KAROO; VELD MANAGEMENT;
VEGETATION CHANGE
Ref ID : 2055
1508. Neser, S. and Annecke, D.P. Biological control of weeds in South
Africa.Department of Agricultural technical Services. 28, 1973.
Reprint : Not in File,
Notes : Entomology memoir no 28, Department of Agricultural technical Services.
Ref ID : 201
1509. Neville, D., Sampson, B.E., and Sampson, C.G. The frontier wagon track
system in the Seacow River valley, north-eastern Cape. South African
Archaeological Bulletin 49:65-72, 1994.
Reprint : In File,
Keywords : ENVIRONMENTAL HISTORY; ARCHAEOLOGY; KAROO DESERTIFICATION
Notes : Makes the comment (p.70) "We propose that the spatial development of
Karoo veld degradation in the valley was largely determined by the growth of
this (wagon) track network.".
Abstract : Nineteenth century wagon roads in a segment of the Cape Colony's
northeastern border are reconstructed. Track fragments were collated from the
survey diagrams attached to original quitrent title deeds of farms drawn up
between 1823-1841. Land surveyors engaged in this work were under instructions
to draw in wagon tracks radiating from each farm homestead to the limits of the
farm property. Track destinations were usually marked. Routes across uncharted
Crown Land between farms can be interpolated from straight erosion features and
from the positions of ruined stone kraals along the way. Growth of the track
network from c.1840 to c.1875 is described. The Seacow River valley was heavily
used by a wide variety of travellers, some 25 of whom have left personal
accounts. The reconstructed maps are invaluable tools for pinpointing their
published observations of Bushmen, Trekboers, game, and other aspects of
frontier life.
Ref ID : 1344
1510. Neville, D.E. Colonial impacts on the natural resouces of the Seacow river
Bushmen, AD 1770-1900. Cape Town:University of Cape Town. , 1993.
Reprint : In File,
Keywords : POPULATION; CARRYING CAPACITY; DROUGHT
Notes : This is a project proposal for a BA Honours in Archaelogy. The goals of
the thesis will be to document the timing and distribution of destruction to
those parts of the valley's habitat vital to the Bushmen's survival. Their
tactics to compensate for losses will also be investigated. Losses of mammals,
amphibians, tortoises & reptiles, bird life (especially ostriches), fish and
mollusca, and insects (especially locusts) will be mapped through time. Plant
losses to be investigated will include both geophytes and sources of arrow
poison. The effect of human diseases on population numbers will be noted, but
is not intended to be part of the central theme. The author intimates that he
may change this when he knows more. The destructive pathways to be
reconstructed will include game slaughter, overstocking, introduced stock
diseases, carnivore/raptor/scavenger extermination, drop land growth, wagon road
development, veld burning, and overgrazing. These trajectories must be overlaid
on a documented background of carrying capacity fluctuations caused by droughts,
locusts, caterpillar plagues and springbok migrations.
Ref ID : 265
1511. Newby, T., Van Zyl, A., Van Staden, J., Danckwerts, J.E., Monnik, K., and
Stimie, C. Report on the extent of natural resource degradation in South Africa:
(A contribution to the "Policy on Sustainable Resource Use"). 1997.
Reprint : In File,
Keywords : SOIL EROSION; DESERTIFICATION ASSESSMENT; LAND DEGRADATION; VELD
CONDITION; SEDIMENTATION; CULTIVATION; EROSION; FREE STATE; NORTHERN PROVINCE
Notes : This report was compiled by various experts in the Agricultural Research
Council. The report is summarised as follows: The effect of cultivation on the
soil resource is most important. This includes heavy soil loss as in unmulched
pineapple fields, salination, acidification, reduction in soil fertility and
increase of toxic substances. One particular type of degradation of soil is
compaction and crusting resulting from cultivation. This drastically lowers the
infiltration rate of water into soil which keeps water away from the complete
root zone and cause increase in run off intensity. The effect of degradation on
cultivation is mainly the loss of available land because of salinisation
reduction in yields and loss of productive, nutrient rich soil. Cultivation and
crops also have an effect on water resources in limiting run off volumes or
increasing run off intensities from hardened soil. The effect of degraded water
on cultivation is loss of production and worsened quality of the produce.
Vegetative cover is obviously affected when it is cleaned for crop cultivation.
When this is the case, soil erosion caused by wind often occurs where light
soils predominate, for example in the Free State. On the Springbok flats in
Northern Province the lack of natural vegetation caused a drastic decrease in
infiltration rate of water into the soil. This caused floating and soil
erosion.
Ref ID : 1159
1512. Newby, T., Wessels, K.J., Monnik, K., Stimie, C., Uys, W.J., Van Heerden,
J., Van Zyl, A., Van Staden, J., Danckwerts, J.E., and Heyns, M.L. Report on the
extent of natural resource degradation in South Africa. (A contribution to the
"Policy on Sustainable Resource Use").Anonymous Agricultural Research Council.
GW/A/97/57:ii-126, 1997.
Reprint : In File,
Keywords : SOIL EROSION; DESERTIFICATION ASSESSMENT; LAND DEGRADATION; VELD
CONDITION; SEDIMENTATION
Ref ID : 2549
1513. Ngcobo, S. and Lejabe, P. Women's land rights in Mgwali. National Land
Committee Publication , 1998.
Reprint : Not in File,
Keywords : LEGISLATION; LAND TENURE; CISKEI; LAND REFORM; GENDER ASPECTS;
POLITICAL ASPECTS
Notes : The purposes of the study were to reflect: how previous legislation
influenced social and cultural ethics relating to women's access to land in
Mgwali; how legislation has affected women's political and personal relations
within the community in relation to their land rights; on control over the land;
and on related resources. The method used was case study, supported by
secondary sources of information. The study found that Mgwali has an area of
5000 ha of land and is occupied by approximately 12 000 people living in six
villages. The study area has the following tenure systems: freehold, quitrent,
permission to occupy certificates, tenants and informal squatting. Despite the
very constraining and discriminatory legal and social context, some women in
Mgwali have been able to access land and even own it. The research, however,
confirms that succession through male lines, when it comes to land transfers, is
used as a norm. The authors generally feel that the current Land Tenure Act
should properly address the issue of tenure reform for rural women. In other
words, the 1994 upgrading of Land Tenure Act that provides that both the
quitrent titles and certificate of occupation are to be legally upgraded to
freehold if one can prove that they are the rightful owners, must be revised.
This is so, because automatic upgrading of tenure can push a significant number
of women off the land since they are not the rightful owners of the land. This
publication is obtainable from the Border Rural Committee resource centre, East
London. See also ID ref. no. 2339.
Ref ID : 78
1514. Nicholas, G.W. Answer to desert encroachment methods (used by FPR van Wyk
at "Celeryfontein"). Farmer's Weekly 83(1952/6/25):14-17, 1952.
Reprint : In File,
Keywords : DESERTIFICATION CONTROL; KAROO DESERTIFICATION; VELD MANAGEMENT;
CONSERVATION
Notes : That the answer to desert encroachment in the Karoo is conservation
farming based on a sound system of rotational grazing has been strikingly proved
by Mr. F.P.R. van Wyk of "Celeryfontein", between Sutherland and Fraserburg.
This farm is mentioned by the Desert Encroachment Committee as a good example of
the excellent results that can be achieved by restoring vlei-like conditions in
suitable valleys and so reviving former springs.
Ref ID : 1041
1515. Niemann, P.J. Bibliography of agricultural literature in the Karoo region,
Middelburg:Department of Agriculture, 1983.pp. 2-119.
Reprint : In File,
Keywords : BIBLIOGRAPHY; KAROO DESERTIFICATION
Notes : This bibliography attempts to list literature which has been collected
for about 75 years concerning the Karoo region.
Ref ID : 670
1516. Nilsen, C.T. Soil and water conservation with particular reference to
conditions obtaining in Zululand.Anonymous :2-61, 1969.
Reprint : In File,
Keywords : KWAZULU NATAL; SOIL CONSERVATION; HYDROLOGY; RESTORATION; RAINFALL;
CONSERVATION; DROUGHT; WATER CONSERVATION; FOREST
Notes : The author concludes that, if grazing systems as suggested by him,
besides increasing the carrying capacity of the veld and encouraging veld
reclamation, can, by the restoration of good veld cover, prevent or reduce the
large loss of water through evaporation and at the same time greatly increase
both the availability of rain water (30 - 40%) to the soil and increase its
absorption rate, thus restoring the tremendous storage capacity of our
underlying subsoil and valuablel geological aquifers, they should be given our
utmost attention. If in addtion to reducing the loss of our water through
evaporation, by introducing these grazing systems into our large pastoral areas,
we could evoke a saving of 30% of our rainfall by encouraging and inducing it to
sink into the soil and water storing formations, the results would be fantastic.
A saving of 30% of our rainfall which is now lost to the sea via our new storm
water drains and by increased evaporation, amounts to 36,000,000,000,000 gallons
of 137,000,000 acre feet. Of this amount we are able to save by every available
means, including exceedingly expensive but relatively puny and flamboyant dams,
a meagre 7,000,000 acre feet. The restoration of 36 Billion gallons to our soil
and aquifers will be of tremendous economic importance, besides boosting our
flagging morale in regard to soil conservation. It would in the first place
have a great buffering effect against our natural periodic droughts by giving
our veld and water sources a much better chance of withstanding its devastating
effects. Inevitably this stored water or "rainfall from below" must restore our
springs, and greatly increase and bring back the former flow of our once
bountiful rivers, and of special import, maintain their vital winter flow. In
addition the resulting increased veld cover would to a great extent solve the
problem of silting in all its aspects. To prove these contentions, and proved
they will be, it will only be necessary to allocate a relatively small amuont
of money, - say R200,000 - to institute practical experimental grazing systems
together with planned fencing of springs and sections of streams on the farms in
a catchment area such as that of the Umhlatuzi River. This is a relatively
small catchment and the farmers in general form a progressive highly intelligent
and enthusiastic community, who have given active support in the formation of
the Umhlatuzi River Catchment Association. It is highly probably that within
two to three years the flow of the Umhlatuzi River could be so increased as to
produce as much water as could be produced by the building of the envisaged
R8,000,000 dam, especially if by example, the co-operation of the Department of
Bantu Affairs could be obtained. Strong support for these views is given by a
Report by Dr. Grobbelaar, Chief of the Highveld Region of the Transvaal,
Agricultural Technical Services, when commenting on the highlight of his recent
tour of Australia and New Zealand in connection with Soil Conservation. This
was a description of the improvement of a catchment area and dam in Victoria,
Australia. Finally, it is abundantly evident that, over the years, nature has
set up perfect conditions for soil and water conservation by the provision of a
vital insulation layer of grass and forest cover, which efficiently combats and
neutralises the devastating effects of the sun's rays and heat, but which at the
same time makes use of them to produce all mankinds food requirements. Under
conditions of good veld cover it appears therefore that this insulating layer
keeps the temperature of the underlying soil at or below the point, at which
water does not evaporate. The only loss of water under these conditions is by
transpiration. Our present grazing and farming practices tend to either
diminish or destroy this vital insulation, and if persisted with they will
inevitably lead to our total destruction.
Ref ID : 1253
1517. Njobe-Mbuli, B. National Department of Agriculture Annual Report 1 April
1996 to March 1997.Anonymous Pretoria:National Department of Agriculture. :i-81,
1998.
Reprint : In File,
Keywords : POLICY; DROUGHT
Notes : The stated national policy goals were to promote the contribution of all
communities, society at large and the national economy in order to enhance
income, food security, employment and quality of life in a sustainable manner.
To this end, various efforts were made within the National Department of
Agriculture to re-orient its budget. The most significant achievement in terms
of policy change was deregulation of the marketing sector, to bring it in line
with the social and economic democratisation of the country and with
international trends towards deregulation. Deregulation of marketing impacted
on departmental activities and raised questions on the role and responsibilities
of government in the provision of agricultural support services. As part of the
transformation process, greater emphasis was placed on developing agriculture.
The Veterinary Services Directorates of the Department, in focusing on food
security, emphasised primary preventive health care in order to support greater
availability of safe and nutritious food at affordable prices. A different
approach to drought and natural disasters, together with concerns about
overexploitation and the relinquishing of agricultural land for non-
agricultural purposes, led to a campaign to promote the sustainable use of the
country's natural resurces. Appropriate information to support departmental
initiatives and build capacity was made available to the farming community
through a wide range of media, including radio, TV, and printed information.
The role of women in agriculture received special attention. Further, the
Department's contribution to the National Crime Prevention Strategy was to
address the sharp increase in stock theft by means of an animal identification
system which will ultimately be applied in the entire region. Organisational
restructuring within the Department was designed to meet the challenge of
transforming the public service. In the interests of effective and efficient
government, the Department explored capacity-building initiatives on a range of
issues, including training programmes for policy analysis as well as project
design and analysis.
Ref ID : 1258
1518. Nkansa-Dwamena, Y. Natural resources and local management in the HEWU
district of the Eastern Cape: limitations to achieving sustainability.Rhodes
University. :1-104, 1998. The Mceula Commonage Land in the Hewu district lies
due northwest of Whittlesea and west of Queenstown in the Eastern Cape. This
thesis has three main objectives. Firstly, to survey and analyse the condition
of the natural resource base in the Hewu district with particular reference to
water, soil, vegetation and land use. Secondly, to investigate and promote
mechanisms which ensure the sustainable management of natural resources in the
rural environment of the Hewu district, and thirdly, to make recommendations
that allow for local participation and give support to community level
management of the natural resources. Random quadrats (4m2) were sampled and
corresponding line transects were done with increasing distances from the
villages. The Braun-Blanquet method was used to find the cover and abundance of
the various species of plants. Data obtained from point sampling along 100
metre line transects was used to assess the condition of the veld using
Trollope's technique. Six communities were defined using TWINSPAN, and grazing
capacities and veld condition scores of the respective sites were calculated.
It was concluded that the six communities were distributed along a gradient of
palatable to non-palatable grass and grasslike species. Rangelands close to the
villages had low veld condition scores and percentage plant cover as opposed to
that farther awy from the villages. The null hypothesis of no significant
difference between the percentage plant cover and the condition of the veld
close to the villages and father away from the villages was rejected. Whilst it
is urgent to resolve political disputes around land through land distribution, a
key issue for the future is sustainability of the natural resource base of SA.
To attain this, the old tranditional methods of research must be supplemented
with the participatory method, where the local community becomes fully involved.
The central theme of the participatory approach was to investigate the
possibility of promoting local management of the natural resources. Workshops
were conducted to invovle the local community in the project. The community
formed six discussion groups that met regularly to discuss environmental issues.
The six groups that were formed were: Firewood or woodlot collecters, shepherds
/ livestock raisers, crop farmers / agriculturists, water collectors, building
material / soil collectors and medicinal plant users. The results obtained from
the meeting of the discussion groups were used to compare the scientific results
obtained from Braun-Blanquet method. Perceptions about their environment, which
came out of the results of the discussion groups showed that the local knowledge
of the rural community of Mceula was sufficient to train them to manage their
environment sustainably.Masters.Science.
Reprint : In File,
Keywords : EASTERN CAPE; LAND USE; VELD CONDITION
Ref ID : 2056
1519. Noble, I.R. Attributes of invaders and the invading process. In:
Biological invasions. A global perspective, edited by Drake, J.A., Mooney,
H.A., Di Castri, F., Groves, R.H., Kruger, F.J., Rejmanek, M., and Williamson,
M.Chichester, UK:John Wiley & Sons, 1988,p. 315-328.
Reprint : Not in File,
Ref ID : 231
1520. Noble, J. The Official Handbook of the Cape of Good Hope, Cape
Town:Government of the Cape of Good Hope, 1886.
Reprint : In File,
Keywords : GOVERNMENT INITIATIVES; KAROO DESERTIFICATION; STOCKING RATE;
ENVIRONMENTAL HISTORY; DESERTIFICATION CONTROL; VELD MANAGEMENT; VELD CONDITION
Notes : Only copied pp.242-243.
Abstract : See pages 242-243 on desertification. "The decrease of stock and the
deterioration of some farms on the frontier which formerly carried sheep well,
led the Government, in 1876, to appoint a Commission to inquire into the matter.
This Commission attributed the evils complained of to three causes, namely,
overstocking, whereby the best and most nutritiuous food was trampled and eaten
down without any opportunity of propagating itself; the wearing out of the veld
by the sheep travelling to and from the kraals morning and night; and the
conditions of the kraals - chiefly the manure accumulations of years - favouring
he development of various kinds of parasites. The remedies they proposed were
fencing and subdividing the farms; allowing portions yearly to seed down and
recover; sowing grasses and Karoo plants; and making provision for times of
drought by preserving the veld for any such emergency". etc, etc.
Ref ID : 2166
1521. Noble, R.G. and Hemens, J. Inland water ecosystems in South Africa - a
review of research needs.Anonymous Pretoria:CSIR. 34, 1978.
Reprint : Not in File,
Notes : South African National Scientific Programmes Report no. 34.
Ref ID : 2423
1522. Nokuzola, M. Decentralisation in development. TATU Development Forum 1(4),
1991.
Reprint : Not in File,
Keywords : TRANSKEI; RURAL DEVELOPMENT; SOCIOECONOMIC ASPECTS; POVERTY
Notes : The purpose of the paper was to show how decentralization in development
enabled Insinamva to uplift the rural poor in Mt. Frere, Tabankulu and Mt.
Ayliff, of the former Transkei. The paper was developed from the author's ideas
and experience accumulated in the field. The Isinamva Development Community
Centre is engaged in programmes of education and training that are aimed at
enabling people in the rural areas suffering from oppression and deprivation to
regain their rightful human life and dignity. The conditions in the rural areas
are not that conducive to development because people in rural areas are isolate
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