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Dryland Agriculture R&I in China: Actions towards SDGs 2030

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Presentation by Yaosheng Wang, Professor, CAAS
Haoru Li, Assistant Professor, CAAS
Xurong Mei, Vice President, CAAS

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Dryland Agriculture R&I in China: Actions towards SDGs 2030

  1. 1. Dryland Agriculture R&I in China: Actions towards SDGs 2030 Yaosheng Wang, Professor, CAAS Haoru Li, Assistant Professor, CAAS Xurong Mei, Vice President, CAAS
  2. 2. 2019/12/9 2 Dryland agriculture vs SDGs 2030 Hunger, poor and malnutrition, … Productivity, biodiversity, resilience, … ……
  3. 3. Agriculture and SDGs 2030 in China 3 6% 9% 34% 20% 21% 30% 38% Renewable water… Arable land Chemical fertilizer Population Cereal + legume + tube Animal protein Vegetable & fruits % of the world Blue 2810 45% Green 3378 55% 620 750 370 410 180 Rain 6188 100% 2500 National Agriculture Actual AgWater Panorama, BCM Rainfed Irrigation 52 20 15 10 0 10 20 30 40 50 60 China World Average USA Russia Arable Land Irrigation Ratio (%) 2019/12/9 SDGs 2030 in agriculture • No poverty 2020 • Zero hunger Yes • Nutrition and health Start • Ecosystem resilience On going • Low carbon growth On going • …
  4. 4. T 30% E 26% EF 24% R 20% Rainwater Use 2019/12/9 4 • 50% of arable land • 43% of grain production • 75%+ of beef & mutton • 80%+ of the poor • 70%+ of vulnerable ecosystem • Rainwater use efficiency: ~60% • Rainwater productivity: ~0.6kg mm-1 • SDGs: Zero hunger √ No poverty 2020 Climate resilience X 图 例 干旱区 半干旱偏旱区 半干旱区 半湿润偏旱区 半湿润区 省界 0 2,0001,000 Km Legend Arid Dry Semiarid Semiarid Dry Subhumid Subhumid Humid Drylands in China Dryland agriculture in China Dryland Agriculture
  5. 5. 2019/12/9 5 Dryland agriculture R&I in China Cultivar & fertility intensificati on • Improve rainwater productivity • Increase water availability • Reduce non-productive water use • Improve crop yield under water limitation • Enhance dryland biodiversity • Improve dryland profit • Promote low carbon growth • Enhance ecosystem resilience
  6. 6. 22.0 24.0 26.0 28.0 30.0 32.0 34.0 4/26 5/10 5/24 6/7 6/21 7/5 7/19 8/2 8/16 8/30 9/13 Soilmoisturecontent(V/V,%) Date(month/day) Tr1 Tr2 Tr3 Tr4 • Increase water availability – water harvesting 2019/12/9 40cm 60cm Ridged water harvesting (RWH, Tr1) RWH + plastic mulching (Tr2) RWH + straw mulching (Tr3) 40cm 60cm 40cm 60cm Improve rainwater productivity 2019/12/9 6
  7. 7. Cistern water harvesting combine with gravity drip irrigation system becomes a good solution small-scaled greenhouse 2019/12/9 Improve rainwater productivity • Increase water availability – water harvesting & irrigation 2019/12/9 7
  8. 8. 5% 10% 15% 20% 25% 30% 35% 5-1 5-21 6-10 6-30 7-20 8-9 8-29 9-18 10-8 Date/day Averagesoilvolumewatercontent/% unmulching Soil VWC mulching Soil VWC • Reduce non-productive water use – minimize soil evaporation 2019/12/9 8 Alternative furrow irrigation Full plastic film mulching Straw mulching -20%~30% irrigation water -90% Es & WP 4.2 kg/m3 (240m3/t) -50% Es and -200 m3/t Partitioning Es from ET by using isotope techniques to maximize the plant Transpiration y = -64851x - 10.37 R2 = 0.7007 -25 -23 -21 -19 -17 -15 0.00010 0.00012 0.00014 0.00016 0.00018 0.00020 1/C Vapor H2O VaporDescrimination(O 18 /O 16 ) Improve rainwater productivity
  9. 9. 2019/12/9 9 • Improve WUE/WP – genetic exploit and W-F integration Y(straw-off) = 53.364e-1.0977x R2 = 0.9944 Y(straw-in) = 71.745e-1.0666x R2 = 0.9971 0 5 10 15 20 25 0 1 2 3 4 5 NitrogenUseEfficiency% Number of year NUE of dryland maize (15N, 1997~1999) Straw out Straw in 指数 (Straw out) 指数 (Straw in) Drought tolerant wheat High productive maize Intercropping Improve rainwater productivity 2019/12/9 9
  10. 10. Enhance dryland biodiversity and resilience • Optimize cropping system and biodiversity WUR 60% 70%, WUE 0.60 1.20 Potato ‖ canola Contour planting Stubble mulching Hedgerow Alfalfa ‖ foliar maize Grazing 2019/12/9 10
  11. 11. Enhance dryland biodiversity and resilience SOC N&P Water GHGs NPS 2019/12/9 11
  12. 12. 2019/12/9 12 • Improve crop productivity for food supply – Genetic exploring and climate change ready varieties – Enhance soil organic carbon and fertility – Irrigation technical Integration and intensification • Enhance biodiversity for ecosystem resilience – Multi- and/or Inter-cropping system to improve profit and reduce environmental and natural disaster risks – Crop-based livestock (dry subhumid) – Grassland-based livestock (arid and semiarid) • Develop horticulture/food processing for poverty reduction & livelihood • Intensify Carbon management for C sequestration & GHGs reduction − Soil water reservoir enrichment − Biological fertility enrichment and chemical fertilizer (NPS) reduction − GHGs emission Reduction Dryland agriculture towards SDGs 2030
  13. 13. 2019/12/9 13 Call on global synergic innovation for DA • Global dryland agricultural research on net (e-DAR) – Professional and institutional information – Program initiatives and progress, dialogue and discussion – Data sharing • World dryland agriculture conference(WDAC) – Oral and poster presentation – Various stakeholder involvement – Exhibition, field trip and on-farm transfer • Climate smart dryland agriculture initiative (CSDA) – Pre-program along Belt and Road – Proposal, evaluation, stakeholder and donation Dryland agriculture towards SDGs 2030
  14. 14. 2019/12/9 14 Aims • Introduce and exchange research progress and experiences in dryland agriculture • Identify future research priorities and key scientific and technological issues • Enhance the synthetic research and innovation in dryland agriculture Topics • Global and national strategies for resilient dryand ecosystem • State-of-Art research findings in dryland agriculture • Policies for sustainable dryland agriculture development • International Collaboration: information and platform sharing, the actions, etc. International Conference on Dryland Agriculture 2020
  15. 15. 2019/12/9 15 Thank You! CDCC: Common Duties for Common Challenge!!

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