求翻译：乙方丢荒，丢耕，或未经甲方同意擅自改变承包鱼塘的用途和进行破坏性，掠夺性经营，经甲方劝阻无效，造成地力，生产力下降的是什么意思？

Party B to sterilize lost farming, or without the Party prior permission to change the use of the fish ponds of the contractor and destructive, predatory, by the Party to discourage invalid, causing fertility decline in productivity

Party B cannot be thrown, dropped, or farming without a party without consent of the Use Change contractors ponds and destructive, predatory, and discouraged by the party is not valid for traction, causing the loss of productivity.

The second party goes out of cultivation, loses ploughs, or without the party of the first part agreed changes arbitrarily contracts the fish pond the use and carries on destructiveness, the depletive management, advises against invalid after the party of the first part, creates the soil fertility,

B abandon, lose no-tillage, or consent of the customer allowed to change contract purpose and the damaging of fish ponds, predatory operated by the party to discourage invalid, resulting in soil fertility, productivity

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