What people are saying - Write a review
We haven't found any reviews in the usual places.
Transformation of Deserts
Biological Control of Pests
5 other sections not shown
acetic acid agricultural anaerobic animal husbandry Artemisia ordosica autonomous regions bacteria Beijing belts biogas digesters biogas fermentation biogas production built cent China Chinese Commune composting conservation parks construction control of pests crop cultivated damage dams decrease desert desertification developing countries economic effective environment environmental management environmental protection farmland fertilizer forest Gansu garbage gas production giant panda grass growth hectares Hexi Corridor hydropower improve increase industrial irrigation jin/mu kulum manure measures Melilotus albus methane million tonnes mountain natural enemies nitrogen nutrients oases organic matter People's People's Commune planning planted population programme propionic acid Province raw materials red-crowned crane reduced reservoirs River Salix cheilophila sand dunes sandy land schistosomiasis Shaanxi shelter-belts shrubs Sichuan slopes small hydropower stations snail soil species stalks surface Table Tamarix chinensis temperature tion trees Turpan utilization volatile acid waste wind velocity windward Yellow River yield