9787030271303 (1 Ergebnisse)

paperback. Zustand: New. Ship out in 2 business day, And Fast shipping, Free Tracking number will be provided after the shipment.Pages Number: 313 Publisher: Science Pub. Date :2010-04-01 first edition this book in the 973 project subject of quantitative expression of soil quality indicators and evaluation advisory system and other national. provincial and ministerial research projects results. and long in the soil quality indicators and evaluation studies of the accumulated research compiled on the basis of the results is made. The book is divided into 10 chapters. System introduces the concept of soil quality and content of its research and development trends. describes the quality of soil fertility. soil quality and soil quality indicators of the health system and evaluation method. put forward China's major soil types of soil quality standards proposals. with typical regional example of paddy soil and vegetable quality and soil fertility reveals the spatial and temporal evolution of the law of environmental quality. research-based case study of soil quality evaluation advisory system. and finally on Chinese soil quality indicators and evaluation of the application of a brief outlook . Book for soil science. plant nutrition. environmental science. ecology. science and agriculture and other land areas of research. teaching and technical personnel for reference. are also available for all levels of government in agriculture. environmental protection. land and other departments. Contents: Preface Chapter I the concept of soil quality and content of the soil functions and importance of a first section. composed of two soils. the importance of the three soils. soil quality and function of the content of a soil II. the definition of two soil quality . the importance of soil quality research Third. the evolution of four soil quality. soil quality indicators for five foreign soil quality status and trends of six research of soil quality and focus of the quality of a soil fertility III. the concept of soil fertility Second. study abroad. some of the points three soil fertility. soil fertility research status four weeks. soil fertility trends in the fourth quarter of the content of a soil quality. soil quality. the concept of two. heavy metals and soil quality and food safety of three . agricultural chemicals and wastes on soil environmental quality and safety of the four heavy metals and organic pesticide standards V content of a soil health quality. soil health concept of quality two. three indicators of the quality of soil health. Soil quality and soil health. relationships and different chapter references section of soil fertility quality indicators of soil quality indicators described in Section III analytical indicators of soil quality evaluation of soil quality minimum data set fourth major crop Indicators. key indicators and minimum data set outlined Second. the principle of three levels of indicators. key indicators of soil function and classification of V Indicators of ecological processes. microbial biomass carbon two. three soil available phosphorus. nitrate-state nitrogen content of Chapter VI Conclusion References quantitative expression of soil fertility quality indicators of soil fertility quality indicators section the principles of a classification. gradation. soil fertility characteristics of quality indicators and evaluation methods Second. the selected quality indicators of soil fertility principles of Section II to determine the fertility level of a quality index. developed based on two indicators of soil fertility. evaluation to determine the classification of three soils of China's four major indicators of soil fertility and different ways to use the classification of the third quarter of the membership function establish one. the concept of two membership functions. the membership function of type III. the evaluation indicators and the relationship between crop growth model four. used some of the evaluation model IV standardization a.