Studies on Fishery Resource, Environment and Their Ecological Management of Daoguanhe Reservoir.

道观河水库渔业资源、环境和生态学管理的研究。

youdao

Based on the rice ecological system, the relationship of rice, pests, useful organisms, environment and management id studied, and the overall forecast is made at different growth period of rice.

它从稻田生态系统出发，调查研究水稻—有害生物—有益生物—环境—管理的多维关系，并以水稻生育期为阶段进行总体预报。

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Ecological systems are the condition of anthropic survival and the basis of the care of resources and environment. The significance of ecosystem management has been understood and accepted.

生态系统作为人类生存条件-资源和环境的保育基础，其管理的重要性已被广泛认识和接受。

youdao

From 1998 to 2001, funds from the Global Environment Facility (GEF) were used to allot grants to villagers for ecological forest management and to compensate them for the loss of the right to exploit the forest.

UNESCO: From bamboo to tea: sustainable development in biosphere reserves | United Nations Educational, Scientific and Cultural Organization