Abstract:
In the middle part of the north foot region of Yinshan mountain,the annual precipitation is only 280 to 350mm,wind erosion and desertification are both quite serious.Reclamation should be controlled and farmers are encouraged to grow grass.The suitable model appears intercropping of grass and crops.Compared with the traditional model of plowing in autumn,the model had effects on increasing the roughness,decreasing wind velocity at 5cm above ground about 31.6%,reducing soil erosion by 79.4%,slowing down the soil surface coarseness with only 2.5% of the gravel over 1mm in the winter bare field,and improving the biomass with 3773kg/hm2 which was 5.7 times than that in the natural grassland.
Key words:
The north of Yinshan Mountain,
Ecotone,
Grass and crop intercropping,
Wind erosion,
Cultivation measure
CLC Number:
ZHAO Ju, ZHENG Da-wei, PAN Zhi-hua, CHENG Yu-chen. Study on the Technique of Grass and Crop Strip Intercropping for Controlling Wind Erosion at Ecotone in North Area of Yinshan Mountain[J]. ACTA AGRICULTURAE BOREALI-SINICA, 2005, 20(S1): 5-9. doi: 10.7668/hbnxb.2005.S1.002.