In Ejiaohe small watershed

the productivity of grain is low and the total food production is seriously scarce because of the out-of-date mode of production as well as continuous destruction of vegetation and vileecotope resulted from long-term piratical exploitation.Based on the features of small watershed

scientifically configuring manag erial measures

synthetically handling and controlling soil and water loss

and recov ering balance of nature are necessary to improve the external condition of production. Developing high standard parallel terrace to improve the throughput of soil

changing tradi tional cultivation system and controlling the growth of population

and extensively spreading fine breed and cultivation technology of high production are needed to attain the high and stable productivity of grain. All above will provide a good mode to solute the food problem for carst areas.