booklet aceh barat.pdf - Balai Penelitian Tanah

More documents

Recommendations

Info

III. CRITERIA AND INDICATORS IN LAND SUITABILITY EVALUATION There are several criteria (land qualities) and indicators (land characteristics) employed in evaluating land suitability (Table 5). Table 5. Criteria and indicators used in land evaluation (adapted from Djaenudin et al., 2003; FAO, 1976). Criteria Indicators Temperature (tc) Average temperature ( oC) Water availability (wa) Rainfall (mm), moisture (%), number of dry months Oxygen availability (oa) Drainage Rooting condition (rc) Texture, coarse material (%), soil depth (cm) Peat Thickness, depth (cm) of mineral interlayer/enrichment (if any), maturity/ripeness Nutrient retention (nr) Clay cation exchange capacity (CEC) (cmol/kg), base saturation (%), pHH2O, Organic C (%) Toxicity (xc) Salinity (dS/m) Sodicity (xn) Alkalinity/ESP (%) Sulfidic material (xs) Depth of sulfidic materials (cm) Erosion hazard (eh) Slope (%), erosion Flood hazard (fh) Inundation Land preparation (lp) Surface stoniness/surface outcrops (%) Temperature Coffee, for example, prefers high altitude or low temperature, while rubber, oil palm and coconut are suitable for the low elevation. In areas where data of air temperature is unavailable, it is estimated by elevation (above sea level) using Braak (1928) formula: T = 26,3 o C – (elevasion in meter x 0.006 o C) The average air temperature at zero elevation (coast) ranges from 25 to 27 o C. The higher the elevation, the lower is the air temperature. 23
Ketersediaan air Data yang paling penting untuk keperluan kriteria ketersediaan air adalah jumlah curah hujan tahunan, jumlah bulan kering dan jumlah bulan basah. Oldeman (1975) mengelompokkan wilayah iklim berdasarkan jumlah bulan basah dan bulan kering secara berurutan. Bulan basah adalah bulan yang mempunyai curah hujan >200 mm, sedangkan bulan kering mempunyai curah hujan 100 mm) dan bulan kering (
Page 1 and 2: PILIHAN TANAMAN PERTANIAN UNTUK KAB
Page 3 and 4: Sitasi: Wahyunto, S. Ritung, F. Agu
Page 5 and 6: KATA PENGANTAR DAFTAR ISI I. PENDAH
Page 7 and 8: KATA PENGANTAR Sesudah diterbitkann
Page 9 and 10: I. PENDAHULUAN Dalam sistem pertani
Page 11 and 12: II. KEADAAN UMUM SUMBERDAYA LAHAN 2
Page 13 and 14: Tabel 1. Jumlah curah hujan dan har
Page 15 and 16: Penggunaan lahan di daerah ini anta
Page 17 and 18: Di daerah pelembahan pantai yang se
Page 19 and 20: Tabel 3. Grup fisiografi, jenis-jen
Page 21 and 22: Grup Fisiografi Sub-grup Tanah Keda
Page 23 and 24: 2.3. Tanah Menurut Taxonomy Tanah (
Page 25 and 26: Gambar 1. Peta tanah Kabupaten Aceh
Page 27 and 28: Tabel 4. Penggunaan lahan di Kabupa
Page 29: III. KRITERIA DAN INDIKATOR EVALUAS
Page 33 and 34: 10 100 100 100 20 30 90 90 90 % % %
Page 35 and 36: Tabel 6. Penentuan tekstur di lapan
Page 37 and 38: Gambut Indikator yang paling pentin
Page 39 and 40: Keracunan Na diindikasikan oleh sal
Page 41 and 42: Bahaya erosi Elemen yang terpenting
Page 43 and 44: IV. PENDEKATAN EVALUASI LAHAN Prose
Page 45 and 46: Tabel 7. Evaluasi kesesuian lahan u
Page 47 and 48: V. REKOMENDASI PENGGUNAAN LAHAN 5.1
Page 49 and 50: SMU 16 dan 17 (gambut agak tebal, k
Page 51 and 52: a c Gambar 3. (a) Beting sungai dan
Page 53 and 54: 5.2. Kawasan konservasi Dua kawasan
Page 55 and 56: Tabel 8. Rekomendasi penggunaan lah
Page 57 and 58: Tabel 8. (Sambungan) Simbol SPT Fak
Page 59 and 60: Gambar 6. Pengamatan ketebalan dan
Page 61: FAO. 1978. Guidelines for Soil Desc

booklet aceh barat.pdf - Balai Penelitian Tanah

You also want an ePaper? Increase the reach of your titles

Delete template?

Save as template?