Farmland with plastic soil cover Yong Wang/ZumaPress

أنقذوا تربتنا

برلين ــ أعلنت الأمم المتحدة 2015 العام الدولي للتربة، ويوافق التاسع عشر إلى الثالث والعشرين من إبريل/نيسان أسبوع التربة العالمي هذا العام. والواقع أن مثل هذه الأحداث، وإن لم تكن براقة، لا تتلقى القدر الذي تستحقه من الانتباه.

إن التربة السليمة تشكل مورداً لا يقدر بثمن ولا غنى عنه، فهو المورد الذي يؤدي وظائف لا حصر لها في تحقيق الأهداف الإنمائية والبيئية الرئيسية للمجتمع الدولي. والآن أصبحت في احتياج عاجل إلى الحماية.

إن التربة الموفورة الصحة تشكل أهمية بالغة لتغذية الإنسان ومكافحة الجوع. ونحن نعتمد عليها ليس فقط لإنتاج الغذاء، بل وأيضاً لخلق مياه شرب جديدة. فهي تساعد في تنظيم مناخ الأرض، فتختزن من الكربون ما يفوق كل ما تختزنه غابات العالم مجتمعة (وتأتي المحيطات فقط سابقة لها كأكبر مخزن للكربون)، وهي تشكل ضرورة أساسية للحفاظ على التنوع البيولوجي: فحفنة من التربة الخصبة تحتوي على عدد من الكائنات الحية الدقيقة تفوق عدد كل البشر على كوكب الأرض. ويعيش ثلثي الأنواع على الأرض تحت سطحها.

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