by Mo Pan. / Thesis (M.Phil.)--Chinese University of Hong Kong, 1997. / Includes bibliographical references (leaves 150-160). / Table of Contents --- p.i / List of Tables --- p.vi / List of Figures --- p.viii / List of Plates --- p.viii / Abstract --- p.ix / Chapter Chapter 1 --- Introduction / Chapter 1.1 --- Background of the Three Gorges Dam Project --- p.1 / Chapter 1.2 --- Conceptual background of the study --- p.6 / Chapter 1.3 --- Objectives and significance --- p.16 / Chapter 1.4 --- Organization of the thesis --- p.18 / Chapter Chapter 2 --- Study Area and Experimental Design / Chapter 2.1 --- Zigui County --- p.20 / Chapter 2.2 --- Geology --- p.21 / Chapter 2.3 --- Climate --- p.22 / Chapter 2.4 --- Soil and vegetation --- p.22 / Chapter 2.5 --- Study area --- p.23 / Chapter 2.6 --- Experimental design --- p.26 / Chapter Chapter 3 --- Effect of Integrated Farming Practices on Soil Physical Properties / Chapter 3.1 --- Introduction --- p.30 / Chapter 3.2 --- Methodology --- p.32 / Chapter 3.2.1 --- Sampling methods --- p.32 / Chapter 3.2.2 --- Soil texture --- p.33 / Chapter 3.2.3 --- Aggregate stability --- p.33 / Chapter 3.2.4 --- Statistical analysis --- p.34 / Chapter 3.3 --- Results --- p.34 / Chapter 3.3.1 --- Effect of integrated farming practices on soil texture --- p.34 / Chapter 3.3.2 --- Effect of integrated farming practices on aggregate stability --- p.37 / Chapter 3.4 --- Discussion --- p.39 / Chapter 3.4.1 --- Soil textural change in relation to integrated farming practices and cultivation --- p.40 / Chapter 3.4.2 --- Aggregate stability of the newly rehabilitated soils --- p.43 / Chapter 3.5 --- Conclusion --- p.45 / Chapter Chapter 4 --- Effect of Integrated Farming Practices on Soil Chemical Properties / Chapter 4.1 --- Introduction --- p.46 / Chapter 4.2 --- Methodology --- p.48 / Chapter 4.2.1 --- Sample treatment --- p.48 / Chapter 4.2.2 --- Soil reaction --- p.49 / Chapter 4.2.3 --- Organic carbon --- p.49 / Chapter 4.2.4 --- Total Kjeldahl nitrogen (TKN) & available nitrogen (NH4-N and N03-N) --- p.50 / Chapter 4.2.5 --- Total and available phosphorus --- p.50 / Chapter 4.2.6 --- "Exchangeable K, Ca & Mg" --- p.51 / Chapter 4.3 --- Statistical Analysis --- p.51 / Chapter 4.4 --- Results --- p.52 / Chapter 4.4.1 --- Effects of integrated farming practices on soil reaction --- p.52 / Chapter 4.4.2 --- Effects of integrated farming practices on soil organic matter --- p.53 / Chapter 4.4.3 --- Effects of integrated farming practices on available nitrogen --- p.55 / Chapter 4.4.4 --- Effects of integrated farming practices on total Kjeldahl nitrogen (TKN) --- p.57 / Chapter 4.4.5 --- Effects of integrated farming practices on available phosphorus --- p.58 / Chapter 4.4.6 --- Effects of integrated farming practices on total phosphorus --- p.60 / Chapter 4.4.7 --- Effect of integrated farming practices on exchangeable potassium --- p.61 / Chapter 4.4.8 --- Effects of integrated farming practices on exchangeable calcium --- p.63 / Chapter 4.4.9 --- Effects of integrated farming practices on exchangeable magnesium --- p.65 / Chapter 4.5 --- Discussion --- p.66 / Chapter 4.5.1 --- The forgotten importance of pH --- p.67 / Chapter 4.5.2 --- The myth of soil organic matter --- p.70 / Chapter 4.5.3 --- Total Kjeldahl nitrogen and available nitrogen --- p.72 / Chapter 4.5.4 --- Total and available phosphorus --- p.77 / Chapter 4.5.5 --- The myth of exchangeable K and orchard growth --- p.78 / Chapter 4.5 --- Conclusion --- p.81 / Chapter Chapter 5 --- Effect of Integrated Farming Practices on Erosion / Chapter 5.1 --- Introduction --- p.84 / Chapter 5.2 --- Methodology --- p.90 / Chapter 5.2.1 --- Rainfall simulation --- p.90 / Chapter 5.2.2 --- Measurement of runoff and sediment --- p.92 / Chapter 5.2.3 --- Determination of soil volumtric moisture --- p.92 / Chapter 5.2.4 --- Statistical analysis --- p.93 / Chapter 5.3 --- Results --- p.93 / Chapter 5.3.1 --- "Effect of low intensity rainfall on time delay, duration, total runoff and mean discharge" --- p.93 / Chapter 5.3.2 --- "Effect of high intensity rainfall on time delay, duration, total runoff and mean discharge" --- p.95 / Chapter 5.3.3 --- "Effect of low intensity rainfall on sediment load, total soil loss and mean sediment loss rate" --- p.97 / Chapter 5.3.4 --- "Effect of high intensity rainfall on sediment load, total soil loss and mean sediment loss rate" --- p.98 / Chapter 5.3.5 --- Effect of hedgerow and farming practices on soil moisture under low intensity rainfall --- p.101 / Chapter 5.4 --- Discussion --- p.102 / Chapter 5.4.1 --- Effect of Vetivergrass hedgerow and integrated farming practices on runoff --- p.102 / Chapter 5.4.2 --- Effect of Vetivergrass hedgerow and integrated farming practices on soil loss --- p.106 / Chapter 5.4.3 --- Effect of Vetivergrass hedgerow and integrated farming practices on soil moisture --- p.110 / Chapter 5.5 --- Conclusion --- p.111 / Chapter Chapter 6 --- Crop Productivity: A Production Efficiency Analysis between Integrated Farming Practices and Existing Farming Systems in Zigui County / Chapter 6.1 --- Introduction --- p.113 / Chapter 6.2 --- Methodology --- p.115 / Chapter 6.2.1 --- Wheat and soybean production --- p.115 / Chapter 6.2.2 --- Socio-economic survey of agriculture in Zigui County --- p.116 / Chapter 6.2.3 --- Production efficiency analysis --- p.118 / Chapter 6.2.4 --- Statistical analysis --- p.119 / Chapter 6.3 --- Results --- p.119 / Chapter 6.3.1 --- Effect of integrated farming practices on wheat production --- p.119 / Chapter 6.3.2 --- Effect of integrated farming practices on soybean production --- p.120 / Chapter 6.3.3 --- Production efficiency of integrated farming systems (experimental plots) --- p.121 / Chapter 6.3.4 --- Production efficiency of existing systems (agricultural survey) --- p.122 / Chapter 6.5 --- Discussion --- p.124 / Chapter 6.5.1 --- Effect of integrated farming on wheat yield --- p.124 / Chapter 6.5.2 --- Effect of integrated treatments on soybean yield --- p.127 / Chapter 6.5.3 --- Will there be enough food production under integrated farming? --- p.129 / Chapter 6.5.4 --- Production efficiency analysis --- p.132 / Chapter 6.6 --- Conclusion --- p.136 / Chapter Chapter 7 --- Conclusion / Chapter 7.1 --- Summary of findings --- p.138 / Chapter 7.2 --- Implications of the study --- p.140 / Chapter 7.2.1 --- Demonstration farms and application of results to other parts of the TGR --- p.140 / Chapter 7.2.2 --- Commodity agriculture and regional specialization --- p.143 / Chapter 7.3 --- Limitation of the study --- p.145 / Chapter 7.4 --- Suggestion for further studies --- p.147 / Bibliography --- p.150 / Appendix A --- p.161
| Identifer | oai:union.ndltd.org:cuhk.edu.hk/oai:cuhk-dr:cuhk_321888 |
| Date | January 1997 |
| Contributors | Mo, Pan., Chinese University of Hong Kong Graduate School. Division of Geography. |
| Source Sets | The Chinese University of Hong Kong |
| Language | English |
| Detected Language | English |
| Type | Text, bibliography |
| Format | print, x, 167 leaves : ill. (some col. mounted), map ; 30 cm. |
| Coverage | China, Yangtze River Gorges, China, Yangtze River Gorges, Yangtze River Gorges (China), Zigui Xian (China) |
| Rights | Use of this resource is governed by the terms and conditions of the Creative Commons “Attribution-NonCommercial-NoDerivatives 4.0 International” License (http://creativecommons.org/licenses/by-nc-nd/4.0/) |
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