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Editore: Yunnan Science and Technology Press, 2021
ISBN 10: 7558735564ISBN 13: 9787558735561
Da: liu xing, Nanjing JiangSu, JS, Cina
Libro
paperback. Condizione: New. Paperback.Pub Date:2021-06-01 Pages:197 Language:Chinese Publisher:Yunnan Science and Technology Press my country's current ecological and environmental problems are very prominent. soil erosion. land desertification. low vegetation quality. serious wetland damage. and biodiversity threats. Due to the over-exploitation and irrational use of natural resources. the ecological environment has deteriorated sharply and the natural ecology has been seriously imbalanced. such as species extinction. .