KESESUAIAN LAHAN UNTUK
HUTAN TANAMAN
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
LAHAN HUTAN
HUTAN : SEBIDANG LAHAN YANG TERTUTUP OLEH HUTAN ATAU LAHAN UNTUK BUDIDAYA HUTAN.
A forest, also referred to as a wood or the woods, is an area with a high density of trees. As with cities, depending on various cultural definitions, what is considered a forest may vary significantly in size and have different classifications according to
how and of what the forest is composed. A forest is usually an area filled with trees but any tall densely packed area of vegetation may be considered a forest,
even underwater vegetation such as kelp forests, or non-vegetation such as fungi and bacteria.
A typical tree forest is composed of the overstory (canopy or upper tree layer) and the understory. The understory is further subdivided into the shrub layer, herb
layer, and also the moss layer and soil microbes. In some complex forests, there is also a well-defined lower tree layer. Forests are central to all human life because they provide a diverse range of resources: they store carbon, aid in regulating the
planetary climate, purify water and mitigate natural hazards such as floods. Forests also contain roughly 90 percent of the world's terrestrial biodiversity.
Sumber: http://en.wikipedia.org/wiki/Forest
EVALUASI LAHAN
Land evaluation is formally defined as 'the assessment of land performance when used for a
specified purpose, involving the execution and interpretation of surveys and studies of land forms,
soils, vegetation, climate and other aspects of land in order to identify and make a comparison of
promising kinds of land use in terms applicable to the objectives of the evaluation' (FAO, 1976).
Sumber: http://www.fao.org/nr/land/land-policy-and-planning/eval/en/
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Principles of the FAO revised framework for land evaluation:
1. Land suitability should be assessed and classified with respect to specified kinds of land use and services;
2. Land evaluation requires a comparison of benefits obtained and the inputs needed on different types of land to assess the productive potential, environmental services and sustainable livelihood;
3. Land evaluation requires a multi-disciplinary and cross-sectoral approach; 4. Land evaluation should take into account the biophysical, economic, social and
political context as well as the environmental concerns; 5. Suitability refers to use or services on a sustained basis; sustainability should
incorporate productivity, social equity and environmental concerns; 6. Land evaluation involves a comparison of more than one kind of use or service; 7. Land evaluation needs to consider all stakeholders; and 8. The scale and the level of decision-making should be clearly defined prior to the
land evaluation process.
Sumber: http://www.fao.org/nr/land/land-policy-and-planning/eval/en/
EVALUASI LAHAN UNTUK HUTAN
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Land Suitability evaluation for forest plantation follows the principles of the Land Evaluation for forestry (FAO, 1984), with the exception of the Suitability index (Si)
which has been calculated using a different formula:
while: A - drainage rating B - soil depth rating C - slope rating D - soil texture rating E - altitude rating F - soil pH rating G - calcium carbonate content rating
Sumber: http://www.iao.florence.it/training/geomatics/Danling/Web/Content/12Land_suitability.php
EVALUASI LAHAN UNTUK HUTAN.
Sumber:
EVALUASI LAHAN UNTUK HUTAN.
Sumber:
EVALUASI LAHAN UNTUK HUTAN.
Sumber:
EVALUASI LAHAN UNTUK HUTAN.
Sumber:
EVALUASI LAHAN UNTUK HUTAN.
Sumber:
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN.
Sumber:
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Penilaian kesesuaian lahan berikut nini dilakukan untuk spesies-spesies yg telah ada di lokasi penelitian :
Quercus suber, Tetraclinis articulata, Pinus halepensis, and Eucaliptus camaldulensis.
Metode yg digunakan berdasarkan pada pedoman evaluasi lahan F.A.O "Land evaluation for forestry" (1984).
The land suitability, whose target is to find better and more suitable places for the implementation of forestry species,
analyses soil conditions and climatic factors.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Data-data yg diperlukan untuk evaluasi lahan bagi hutan tanaman adalah: Karakteristik lahan, data sosial-ekonomi, analisis B/C ratio.
Lokasi penelitian mempunyai peran sosial-ekonomi yang snagat penting.
Hutan “Ben Slimane” yang lokasinya dekat dnegan kota-kota
Moroccan, Rabat dan Casablanca, dianggap sangat sesuai untuk obyek wisata; juga ada lokasi yang dimanfatakan sebagai lokasi animal
grazing dan “cork harvesting” bagi penduduk sekitar.
For these reasons the species considered for land suitability are those, among the natural and artificial forest species, that allow a sustainable
economy for tourism, pasture, and the production of fuel and paper wood.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
MethodologiTahapan metodologi F.A.O adalah sbb:1. Pemilihan spesies;2. Determination of ecological parameters that enable to understand
the species behaviour regarding edaphic and environmental conditions;
3. Penentuan kelas untuk setiap parameter ekologis;4. Pengumpulan data geomorfologi (slope) dan data tanah (drainage,
pH, depth, texture, organic carbon, calcium carbonate, and coarse fragment);
5. Pengolahan Data.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Data klimatik seperti elevasi , rataan suhu tahunan, dan rataan curah hujan tahunan tidak dipertimbangkan karena
daerah survei dianggap homogen dari sudut pandang klimatik ini.
Each class of every ecological parameter was classified with a determined value for each species.
The value ranges from zero (worst conditions) to one (optimum conditions).
This was done to show the behaviour of the species regarding the chosen parameters as shown in the Table 42 -
Table 48.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 42 - Rating dan Pembobotan untuk Drainage Tanah
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Drainage Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulensis
Well drained 1 1 1 1Rarely saturated 0.8 0.3 0.5 0.8
Saturated for short periodson most years
0.3 0.3 0.1 0.5
Saturated for long periods every year 0.3 0.1 0.1 0.3
Always saturated 0.1 0.1 0.1 0.1
Weight 1 1 1 3
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 43 - Rating untuk slope
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Slope (%) Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulensis
0-1 1 0.3 0.1 11-3 1 0.3 0.3 13-10 1 0.5 0.8 110-32 0.8 0.8 1 132-56 0.5 1 1 0.556-100 0.1 1 0.8 0.1100-300 0.1 0.8 0.5 0.1>300 0.1 0.3 0.1 0.1Weight 1 2 2 1
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 44 - Rating dan Pembobotan untuk Kedalaman Tanah
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Soil depth (cm) Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulensi
s
0-50 0.1 0.8 0.5 0.350-100 0.5 0.8 0.8 0.5100-150 0.8 1 1 1>150 1 0.8 1 1Weight 3 5 3 2
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 45 - Rating and weights for soil pH
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
pH Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulen
sis0-4 0.1 0.1 0.3 0.14-5 0.5 0.3 0.8 0.55-6 0.8 0.5 0.8 0.86-7 1 1 1 17-8 0.8 1 1 0.88-10 0.1 0.8 0.8 0.5Weight 4 4 5 4
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 46 - Rating and weights for soil CaCO3
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
CaCO3 (%) Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulensis
0 1 0.5 1 0.8
0-10 1 0.5 1 1
10-30 0.5 1 1 1
>30 0.3 1 1 0.8
Weight 2 4 5 3
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 47 - Rating and weights for soil organic carbon
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Organic carbon (cmol+/kg)
Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulensis
0-0.7 0.5 0.3 1 10.7-1.3 0.8 0.5 1 11.3-1.9 1 0.8 1 11.9-2.7 1 1 1 12.7-5 0.5 1 1 1Weight 5 5 5 3
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 48 - Rating and weights for soil texture (USDA classification)
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Texture Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulensis
Clay 0.1 0.1 0.3 0.5Loam 0.8 0.5 0.8 0.8Clay loam 0.8 0.5 0.8 0.8Silt 1 0.8 1 0.8Silty clay 0.8 0.5 1 0.8Silty clay loam 0.8 0.8 1 0.8Silty loam 1 1 1 0.8Sandy clay 1 1 1 1Sandy clay loam 1 1 1 1Sandy loam 1 0.3 1 1Loamy sand 0.8 0.5 0.8 0.8Sand 0.5 0.3 0.8 0.5Weight 2 2 5 3
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 49 - Rating and weights for coarse fragments
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Coarse fragments
(%)
Quercussuber
Tetraclinisarticulata
Pinushalepensis
Eucalyptuscamaldulensis
0-2 1 0.3 1 12-5 1 0.3 1 15-15 1 0.5 1 0.815-40 0.8 1 1 0.340-80 0.8 0.8 0.8 0.1>80 0.1 0.8 0.5 0.1Weight 5 5 5 3
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Masing-masing nilai ini kemudian dikalikan dnegan suatu “bobot” (nilainya bulat 1-5), untuk mendapatkan suatu nilai yang mencerminkan
kepentingan setiap parameter ekologis untuk setiap spesies. Misalnya “bobot” untuk faktor-faktor pembatas , seperti drainage untuk jenis
tegakan Tetraclinis articulata, ditetapkan nilai 1 sedangkan parameter yang perannya sama bagi semua spesies diberi bobot t 5.
To enhance the limiting factors, the values of each relevé, whose weight was different from one, have been summarised (å 1
nx) and divided by the sum of the their weights (å 1
nw), and then multiplied by the product of the values whose the weight was equal to 1 (Y).
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
In this way we obtained a number from 0 to 1 for each relevé, that reflects the importance of the limiting factor, giving it more weight because it is multiplied to the final
value.
Angka ini dipakai untuk memberikan suatu INDEKS untuk setiap satuan lahan sesuai dengan “facet” yg paling
representatif dalam “the relevé”.
Indeks ini kemudian dikonversi menjadi Kelas Kesesuaian Lahan seperti pada Tabel 50.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANTable 50 – Kelas-kelas Kesesuaian.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Indeks Akhir Kelas Kesesuaian
>0.8 S1
0.6-0.8 S2
0.3-0.6 S3
<0.3 N
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
HASIL PENILAIAN
Figure 34 - Figure 37 Menunjukkan klasifikasi kesesuaian lahan untuk spesies yang dianalisis.
Suitabilities for afforestation, production and naturalistic conservation were overlapped as layers, to show the potential use of the considered species for economic
purposes (paper wood, fuel wood, cork, and grazing in forest) and for a naturalistic conservation of the forest,
related to its historic importance and to recreational purposes.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
HASIL PENILAIAN
Eucalyptus camaldulensis dianggap lebih penting secara ekonomis karena nilainya sebagai bahan bakar dan bahan
baku industri kertas.
Pinus halepensis is the next in importance, used for timber wood, and then Quercus suber, for grazing under forest and cork harvesting, and Tetraclinis articulata, whose timber is
used for making tools.
Prosedur ini tidak mempertimbangkan faktor ekonomis guna-lahan (Figure 38).
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANDari sudut pandang naturalistik, dipertimbangkan empat
spesies dalam urutan kepentingannya: Quercus suber and Tetraclinis articulata, because they are the original species of this area, and then Pinus halepensis
and Eucalyptus camaldulensis, which are species introduced with plantations (Figure 39).
Kesesuaian lahan untuk konservasi tanah ditetapkan untuk unit-unit yg menunjukkan risiko erosi yang besar (Kelas 3 - 5) dan dengan memperhatikan bahwa Tetraclinis articulata dan Pinus halepensis lebih sesuai untuk konservasi tanah,
karena mereka lebih “rustic” daripada Eucalyptus camaldulensis dan Quercus suber (Figure 40).
Hasilnya disajikan dalam Tabel 51.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANFigure 34 - Land suitability for Quercus suber
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANFigure 35 - Land suitability for Tetraclinis articulata
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANFigure 36 - Land suitability for Pinus halepensis
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANFigure 37 - Land suitability for Eucalyptus camaldulensis
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANFigure 38 - Land suitability for wood protection
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANFigure 39 - Land suitability for naturalistic forestry
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMANFigure 40 – Kesesuaian Lahan untuk Konservasi Tanah
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Table 51 - Land evaluation for Quercus suber, Tetraclinis articulata, Pinus halepensis, and Eucalyptus camaldulensis
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Land Unit
Quercus suber
Tetraclinis articulata
Pinus halepensis
Eucalyptus camaldulen
sisSuitability for wood
productionSuitability for
naturalistic forestrySuitability for soil conservation (*)
1 S3 S3 S3 S2 E. camaldulensis E. camaldulensis NR
2 N N N S2 E. camaldulensis E. camaldulensis NR
3 N N N S2 E. camaldulensis E. camaldulensis NR
4 S3 S3 S2 S2 E. camaldulensis P. halepensis 4 P. halepensis
5 S2 S3 S2 S1 E. camaldulensis Q. suber 3 P. halepensis
6 S2 S2 S1 S1 E. camaldulensis Q. suber 3 P. halepensis
7 S2 S2 S1 S1 E. camaldulensis Q. suber 4 P. halepensis
8 S1 S3 S1 S1 E. camaldulensis Q. suber NR
9 S2 S3 S2 S1 E. camaldulensis Q. suber NR
10 S1 S2 S1 S1 E. camaldulensis Q. suber NR
Table 51 - Land evaluation for Quercus suber, Tetraclinis articulata, Pinus halepensis, and Eucalyptus camaldulensis
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Land Unit
Quercus suber
Tetraclinis articulata
Pinus halepensis
Eucalyptus camaldulen
sisSuitability for wood
productionSuitability for
naturalistic forestrySuitability for soil conservation (*)
11 S2 S3 S2 S1 E. camaldulensis Q. suber NR
12 S1 S2 S1 S1 E. camaldulensis Q. suber NR
13 S2 S3 S2 S1 E. camaldulensis Q. suber NR
14 S2 S3 S2 S1 E. camaldulensis Q. suber NR
15 S3 N S3 S2 E. camaldulensis E. camaldulensis NR
16 S2 S3 S2 S1 E. camaldulensis Q. suber 3 P. halepensis
17 S3 S2 S1 S2 P. halepensis T. articulata 4 P. halepensis
18 S2 S3 S2 S1 E. camaldulensis Q. suber NR
19 N N N S2 E. camaldulensis E. camaldulensis 3 E. camaldulensis
20 S3 S2 S1 S3 P. halepensis T. articulata 4 P. halepensis
Table 51 - Land evaluation for Quercus suber, Tetraclinis articulata, Pinus halepensis, and Eucalyptus camaldulensis
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Land Unit
Quercus suber
Tetraclinis articulata
Pinus halepensis
Eucalyptus camaldulen
sisSuitability for wood
productionSuitability for
naturalistic forestrySuitability for soil conservation (*)
21 S3 S1 S1 S3 P. halepensis T. articulata 5 T. articulata
22 N N N S2 E. camaldulensis E. camaldulensis NR
23 N N N S2 E. camaldulensis E. camaldulensis NR
24 S2 S2 S1 S1 E. camaldulensis Q. suber 4 P. halepensis
25 S3 S2 S1 S2 P. halepensis T. articulata 5 P. halepensis
26 S3 S2 S1 S3 P. halepensis T. articulata 4 P. halepensis
27 S3 S1 S1 S3 P. halepensis T. articulata 4 T. articulata
28 S3 S2 S1 S3 P. halepensis T. articulata 4 P. halepensis
29 S3 S3 S3 S2 E. camaldulensis E. camaldulensis 4 E. camaldulensis
30 S2 S2 S1 S1 E. camaldulensis Q. suber NR
Table 51 - Land evaluation for Quercus suber, Tetraclinis articulata, Pinus halepensis, and Eucalyptus camaldulensis
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
Land Unit
Quercus suber
Tetraclinis articulata
Pinus halepensis
Eucalyptus camaldulen
sisSuitability for wood
productionSuitability for
naturalistic forestrySuitability for soil conservation (*)
31 S2 S2 S1 S1 E. camaldulensis Q. suber 3 P. halepensis
32 S3 S2 S1 S2 P. halepensis T. articulata 4 P. halepensis
33 S2 S2 S1 S1 E. camaldulensis Q. suber 4 P. halepensis
34 S2 S2 S1 S1 E. camaldulensis Q. suber 3 P. halepensis
35 S3 S2 S1 S3 P. halepensis T. articulata 4 P. halepensis
36 S2 S2 S2 S2 E. camaldulensis Q. suber NR
37 S3 S1 S1 S3 P. halepensis T. articulata 4 T. articulata
U NR NR NR NR NR NR NRR NR NR NR NR NR NR NRQ NR NR NR NR NR NR NR
(*) Erosion risk class is shown before the chosen species in suitability for soil conservation column
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Analysing the results for land suitability in the four land systems (plateau of Ben Slimane, western scarp of the
plateau, eastern scarp of the plateau, and southern reliefs):
Dapat disimpulkan bahwa spesies Pinus halepensis dan Eucaliptus camaldulensis (Figure 36 dan Figure 37), sangat
sesuai dengan kondisi permukaan (lahan) di daerah survei.
Hasil ini muncul dari perilaku ekologis spesies tegakan yang dianalisis, spesies-spesies ini mampu beradaptasi dnegan baik terhadap kondisi lingkungan dan tanah yang “tidak
baik”.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
It is evident when analysing the results for each species in the four land systems, that in the plateau of Ben Slimane, Quercus suber is suitable from moderate to high undulating planation surface while it is marginally suitable in the flat areas where the soil drainage condition, one of the limiting factor in addition to slope
steepness, is poor and the soil texture is clayey. Moreover in the undulating surface the few areas marginally suitable for oak are on calcareous substratum.
Along the eastern scarp of the plateau, oak is found to be marginally or not suitable at all because of the high slope steepness. The same results for the
western scarp of plateau were found but this is mainly due to poor soil drainage. In the southern reliefs, cork oak is moderately suitable where the soil is well
drained and the slopes are not very steep (Figure 34). This potential distribution of Quercus suber is very similar to its actual
distribution, except for the undulating surface covered by agricultural crops.
Taking these results into account, it is possible to suppose that in the past, cork oak forests did not accupy a much greater area.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Jenis-jenis Quercus suber, Tetraclinis articulata kurang sesuai di sebagian besar daerah Ben Slimane plateau, kecuali di
beberapa lokasi yang kondisi lokal-tanahnya dapat diperbaiki nilai kesesuaiannya.
Spesies ini sesuai atau cukup-sesuai di sisi timur plateau dan di daerah selatan , dimana tanah-tanahnya mempunyai drainage yg baik, dan kemiringannya masih sesuai untuk
penyebarannya. Along the western scarp of the plateau bad soil drainage is probably the main cause of the Tetraclinis absence; in this
area only few hills with calcareous substratum result highly suitable (Figure 35).
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
It can be noticed that also in this case the potential distribution of Tetraclinis articulata, according only to soil
and climatic conditions, is very similar to the actual distribution even if some of these areas were afforested
with Pinus halepensis.
As previously stated, Pinus halepensis is from moderately to highly suitable in the western scarp of the plateau, in
the southern reliefs, and in the Ben Slimane plateau, but it is not suitable in the flat areas and in the western scarp of
the plateau mainly because of the poor soil drainage (Figure 36).
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Eucaliptus camaldulensis kurang-sesuai di sepanjang sisi timur dan barat dari plateau dan di daerah selatan, karena
kecuraman lerengnya menjadi faktor pembatas bagi penyebarannya. (Figure 37).
On the other hand the high adaptability of this species to grow on poor drained soils, permits it to be used for wood
production in the dayas.
Jenis Eucalyptus gomphocephala, meskipun telah digunakan untuk penghutanan-kembali, namun tidak dianalisis karena
perilakunya sangat menyerupai jenis Eucalyptus camaldulensis.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Menurut peta kesesuaian jenis-jenis terpilih, peta-peta ppotensial untuk produksi kayu-hutan, hutan
alam, dan konservasi tanah dapat ditetapkan.
Misalnya, untuk produksi kayu hutan, jenis Eucaliptus camaldulensis sangat sesuai di daerah
selatan dan di plateau Ben Slimane, sedangkan jenis Pinus halepensis sangat sesuai di sepanjang daerah
timur dan daerah-daerah plateau dengan tanah-tanah berkapur.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Untuk tujuan konservasi alami, Quercus suber dan Tetraclinis articulata, bersifat autochtonous di likasi penelitian, dipilih
sebagai spesies utama.
Kedua spesies ini sangat sesuai atau cukup sesuai di daerah bagian selatan, di bagian sebelah timur plateau, dan di
daerah berombak plateau Ben Slimane.
Dalam skenario ini, jenis Eucaliptus, di lokasi dimana oak dan Tetraclinis tidak sesuai, dapat menempadi daerah datar
dan “dayas”, sedangkan tanah-tanah berkapur di daerah-plateau lebih sesuai untuk jenis Pinus halepensis.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN
Untuk tujuan konservasi tanah, di lokasi yang mempunyai kelas risiko erosi lebih dari 2, ternyata bahwa lokasi yang rawan erosi ini dapat diproteksi
melalui penghutanan kembali dengan spesies Tetraclinis artculata dan Pinus halepensis (keduanya
sangat sesuai dnegan lahan curam) ,
Eucaliptus camaldulensis dapat digunakan di lokasi yang kelas risiko erosinya lebih ringan dengan
kemiringan lahan yang lebih datar.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm
KESESUAIAN LAHAN UNTUK HUTAN TANAMAN.
Sumber: http://www.iao.florence.it/training/geomatics/BenSlimane/Marocco21_4_2_3.htm