《生物多样性导论》课程教学课件（PPT讲稿）14 农田生态系统中生物多样性应用

Perennial grass in prunes ·It can be difficult to sort through all the information and research on cover crops,so where can I get help in deciding what's best for my particular system? 2025/6/17 Prof.Dr.LiL

2025/6/17 Prof. Dr. Li L 1 Perennial grass in prunes • It can be difficult to sort through all the information and research on cover crops, so where can I get help in deciding what's best for my particular system?

带状间作降低风蚀 ·带宽6-8m;适合 的作物品种有马铃 薯、油菜和燕麦等。 ·留茬地可减轻风蚀 量70%以上。 不留茬也可以降低 风蚀量33%一62%。 地点g内蒙古武川县，妥德宝等 2

2025/6/17 Prof. Dr. Li L 2 带状间作降低风蚀 • 带宽6-8m；适合 的作物品种有马铃 薯、油菜和燕麦等。 • 留茬地可减轻风蚀 量70％以上。 • 不留茬也可以降低 风蚀量33％－62％。 地点：内蒙古武川县，妥德宝等

灌草带状间作 。 牧草带宽：2.5-5m; 草种有沙打旺、首蓿、 冰草和沙蒿等。 。灌木带宽：2-5m;有 柠条和沙棘等。 农蒙古阴山地区（妥德 宝等，2001) 2025/6/17 Prof.Dr.LiL

2025/6/17 Prof. Dr. Li L 3 灌草带状间作 • 牧草带宽：2.5-5m； 草种有沙打旺、苜蓿、 冰草和沙蒿等。 • 灌木带宽：2-5m；有 柠条和沙棘等。 农蒙古阴山地区（妥德 宝等，2001）

Saltbush ()-a Useful Shrub for Intercropping Sheep grazing barley stubble and saltbush in a barley-saltbush intercropping system

Saltbush (滨藜)-a Useful Shrub for Intercropping Sheep grazing barley stubble and saltbush in a barley-saltbush intercropping system

MI X Hedgerow intercropping system

2025/6/17 Hedgerow intercropping system Prof. Dr. Li L 5

Hedgerow intercropping Hedgerow intercropping is a management-intensive system that can lead to increases in crop yields This management strategy seeks to maximize trees? service roles of nitrogen fixation,soil and water conservation,weed control, and nutrient cycling 2025/6/17 Prof.Dr.LiL 6

2025/6/17 Prof. Dr. Li L 6 Hedgerow intercropping • Hedgerow intercropping is a management-intensive system that can lead to increases in crop yields. This management strategy seeks to maximize trees’ service roles of nitrogen fixation, soil and water conservation, weed control, and nutrient cycling

经济植物篱 。矮化香椿作 为植物篱保 持水土，有 利于玉米生 四川山地（朱 钟麟，2001) 2025/6/17 Prof.Dr.LiL

2025/6/17 Prof. Dr. Li L 7 经济植物篱 • 矮化香椿作 为植物篱保 持水土，有 利于玉米生 长。 四川山地（朱 钟麟, 2001）

Two-way systematic design for hedgerow spacing and cropping intensity 2025/6/17 Prof.Dr.LiL 8

2025/6/17 Prof. Dr. Li L 8 Two-way systematic design for hedgerow spacing and cropping intensity

2025/6/17 Prof. Dr. Li L 9

Trees Trees Crops ier/Litr 入 Litter Litter Negative effects Positive effects a shading c Litter fall b root competition d deep roots of trees actas‘safety-net

2025/6/17 Prof. Dr. Li L 10