Grassland protection and construction

Protection and construction of grassland

Grassland construction and utilization

Conservation and construction

conservation and construction planning

Conservation and protection of water sources

Construction and conservation theory

Construction and Protection

Construction Consultation and Supervision

Ecological Conservation and Construction

energy conservation and consumption decrease

Energy Conservation and Consumption Reduction

energy consevation and consumption reduction

Energy-conservation and consumption-reduction

environment construction and conservation

environment protection and construction

protection and construction

Protection and construction of ecology

balance between animal number and grassland production