而旱地的这一比例则更高，原因是政策不当和畜牧业管理不足，导致荒漠化蔓延。
This figure is even higher in the drylands where inappropriate policies and inadequate livestock management contribute to advancing desertification.
风险防范措施主要是指一些政策的完善和制度的建立，而风险的现代管理措施主要指畜牧业保险。
Basically, the risk-defensive measure refers to the policy-perfecting and institution-formulating; while the modern risk managerial approach mainly means the animal husbandry insurance.
加强畜牧业的管理，实行综合经营。
Strengthens the animal husbandry the management, the implementation comprehensive management.
畜牧系统中N流动与平衡的研究是畜牧业进行养分资源管理的基础，而参数的确定又是研究养分循环与平衡的基础工作。
The study of nitrogen balance in stock farming system is the basis of nutrient management in animal husbandry production, and the determination of N cycling parameters is the foundation of this study.
畜牧系统中N流动与平衡的研究是畜牧业进行养分资源管理的基础，而参数的确定又是研究养分循环与平衡的基础工作。
The study of nitrogen balance in stock farming system is the basis of nutrient management in animal husbandry production, and the determination of N cycling parameters is the foundation of this study.
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