From biodiversity to geodiversity and soil diversity: A spatial understanding of soil in ecological studies of the forest landscape [Daripada biodiversiti kepada geodiversiti dan kepelbagaian tanah. Satu ruang pemahaman mengenai tanah dalam kajian ekologi

Thwaites, Robin N. (2000) From biodiversity to geodiversity and soil diversity: A spatial understanding of soil in ecological studies of the forest landscape [Daripada biodiversiti kepada geodiversiti dan kepelbagaian tanah. Satu ruang pemahaman mengenai tanah dalam kajian ekologi mengenai landskap hutan]. Journal of Tropical Forest Science, 12 2: 388-405.


Author Thwaites, Robin N.
Title From biodiversity to geodiversity and soil diversity: A spatial understanding of soil in ecological studies of the forest landscape [Daripada biodiversiti kepada geodiversiti dan kepelbagaian tanah. Satu ruang pemahaman mengenai tanah dalam kajian ekologi mengenai landskap hutan]
Journal name Journal of Tropical Forest Science   Check publisher's open access policy
ISSN 0128-1283
Publication date 2000-04
Sub-type Article (original research)
Volume 12
Issue 2
Start page 388
End page 405
Total pages 18
Editor K.C. Khoo
Place of publication Kuala Lumpur, Malaysia
Publisher Forest Research Institute, Malaysia (FRIM)
Collection year 2000
Language eng
mal
Subject C1
300803 Natural Resource Management
760200 Environmental and Resource Evaluation
Formatted abstract
In field ecology we have to satisfy 'geographical' objectives because of the spatial nature of the landscape, rather than theoretical 'typological' objectives. To understand and maintain biodiversity we must have some understanding of geodiversity. We therefore have to adjust our attitude to the dynamism of the soil system accordingly through geoecology. This is best undertaken by using soil-landscape analysis within a geomorphological paradigm which treats soil as layers of material with spatial extent. The recommendation is for viewing a 3-dimensional micro-catchment, or 'catenary unit', rather than the soil profile, as the fundamental natural unit of study. The soil profile, or pedon, is best used for observation and generic classification only. Soil diversity is best expressed as variations in selected soil attributes that are ecologically relevant rather than preconceived soil types developed for agricultural or other puproses. Classifying soil attributes by 'fuzzy logic' (or by other mathematical clustering means) suits this form of spatial analysis for soil attribute prediction. A fuzzy classification gives a set of multiple possibilities of soil attributes at any one point, compared with an intuitive conjecture that is likely from a soil profile classification.

(Dalam ekologi lapangan kita mestilah memenuhi objektif geografi kerana ruang semula jadi landskap, lebih daripada objektif tipologi secara teori. Untuk memahami dan mengekalkan biodiversiti kita mestilah memahami sedikit sebanyak mengenai geodiversiti. Oleh itu mestilah menyesuaikan sikap kita terhadap dinamis sistem tanah melalui geoekologi. Ini dapat dilakukan dengan menggunakan analisis landskap-tanah dalam satu paradigma geomorfologi yang menganggap tanah sebagai satu lapisan bahan dengan tambahan ruang. Cadangan tersebut adalah untuk melihat mikro-tadahan tiga dimensi, atau 'unit katenari', lebih daripada profil tanah, sebagai satu unit semula jadi asas dalam kajian tersebut. Profil tanah, atau pedon, hanya sesuai digunakan untuk cerapan dan pengkelasan umum sahaja. Diversiti tanah diungkapkan sebagai kepelbagaian dalam sifat-sifat tanah yang terpilih yang berkaitan secara ekologi berbanding dengan jenis tanah yang membenih yang dibangunkan untuk pertanian atau tujuan lain. Mengkelaskan sifat-sifat tanah secara 'logik kabur' (atau secara kelompok matematik yang lain) sesuai dengan bentuk analisis ruang untuk ramalan ciri-ciri tanah. Pengkelasan kabur memberikan szitu set kemungkinan berganda dalam ciri-ciri tanah pada mana-mana tempat, berbanding dengan agakan gerak hati yang mungkin daripada pengkelasan profil tanah.
Q-Index Code C1
Additional Notes Abstract only in Malay.

Document type: Journal Article
Sub-type: Article (original research)
Collection: School of Agriculture and Food Sciences
 
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Created: Tue, 10 Jun 2008, 11:56:09 EST