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Old field is a term used in ecology to describe lands formerly cultivated or grazed but later abandoned. The dominant flora include perennial grasses, heaths and herbaceous plants. Old fields are canonically defined as an intermediate stage found in ecological succession in an ecosystem advancing towards its climax community, a concept which has been debated by contemporary ecologists for some time. Old field sites are often marginal lands with soil quality unsuitable for crops or pasture. Examples include abandoned farmlands in central Ontario, along the edge of the Canadian Shield.

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  • الحقل القديم أو المُهمل هو مصطلح في علم البيئة يُطلق على حقل كان يُزرع أو ترعى فيه الماشية فيه سابقًا ثم تم التخلي عنه الحياة النباتيّة المسيطرة والمنتشرة هي الحشائش والفصيلة الخلنجية والنبات العشبي مع حياة خشبيّة تغطي المكان تدريجيًا وهي تمثل المرحلة المتوسطة الّتي وجدت في التعاقب البيئي لتقدم نظام بيئي ما نحو الجماعة القميّة. وغالبًا ما تكون ذات قيمة زراعيّة قليلة بسبب جودة التربة الغير ملائم كليًا للزراعة وما إلى ذلك مثال على ذلك مزارع متروكة في أطراف الدرع الكندي. (ar)
  • Old field is a term used in ecology to describe lands formerly cultivated or grazed but later abandoned. The dominant flora include perennial grasses, heaths and herbaceous plants. Old fields are canonically defined as an intermediate stage found in ecological succession in an ecosystem advancing towards its climax community, a concept which has been debated by contemporary ecologists for some time. Old field sites are often marginal lands with soil quality unsuitable for crops or pasture. Examples include abandoned farmlands in central Ontario, along the edge of the Canadian Shield. Stress tolerant species with wide seed dispersal ranges are able to colonize cultivated fields after their initial abandonment, usually followed by perennial grasses. The succession of old fields culminates in takeover by trees and shrubs, eventually leading to a climax forest stand. (en)
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  • الحقل القديم أو المُهمل هو مصطلح في علم البيئة يُطلق على حقل كان يُزرع أو ترعى فيه الماشية فيه سابقًا ثم تم التخلي عنه الحياة النباتيّة المسيطرة والمنتشرة هي الحشائش والفصيلة الخلنجية والنبات العشبي مع حياة خشبيّة تغطي المكان تدريجيًا وهي تمثل المرحلة المتوسطة الّتي وجدت في التعاقب البيئي لتقدم نظام بيئي ما نحو الجماعة القميّة. وغالبًا ما تكون ذات قيمة زراعيّة قليلة بسبب جودة التربة الغير ملائم كليًا للزراعة وما إلى ذلك مثال على ذلك مزارع متروكة في أطراف الدرع الكندي. (ar)
  • Old field is a term used in ecology to describe lands formerly cultivated or grazed but later abandoned. The dominant flora include perennial grasses, heaths and herbaceous plants. Old fields are canonically defined as an intermediate stage found in ecological succession in an ecosystem advancing towards its climax community, a concept which has been debated by contemporary ecologists for some time. Old field sites are often marginal lands with soil quality unsuitable for crops or pasture. Examples include abandoned farmlands in central Ontario, along the edge of the Canadian Shield. (en)
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  • حقل قديم (ar)
  • Old field (ecology) (en)
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