| 摘 要： | Irrigationisthelifebloodofagriculture,"ThisisoneofthefundamentalpolicieswhichChinagovermentformulatetodevelopagriculture.EachirrgationfacilityinChinahadproducedamarkedeffect.Itistheguaranteeforagricu1ture'scontinuousdevelopment.InsouthpartofChangjiang,almostallkindsofbankanddamezittwosortsoftermites,whichbuildlargenest,blackwingedtermitesandyellowwingedtermites,especiallytheformer.Blackwingedtermitesbuiltitsnestundertheground,varyindepthfrom1.0mto3.0m.Thesenestshaveonevitalnestandseverlvicen…
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