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乌江是长江上游的第三大支流,乌江流域的气候适宜于许多农作物和森林树种生长,并有丰富的矿产、水力等资源,但长期以来由于人们对自然资源的不合理开发,生态环境日趋恶化,已对经济建设构成威胁。为恢复生态平衡,国家在“七五”期间将长江上游水土保持研究列入重点攻关项目之一,贵州省林科所承担了75—08—02—13专题,确定德江县板桥河小流域为“乌江中游石灰岩山地温湿气候区水源林、水保林营建技术研究及小流域综合试验
The Wujiang River is the third largest tributary of the upper reaches of the Yangtze River. The climate in the Wujiang River basin is suitable for the growth of many crops and forest tree species, and is rich in resources such as mineral resources and water resources. However, due to the unreasonable exploitation of natural resources by people, the ecological environment is deteriorating , Has posed a threat to economic construction. In order to restore the ecological balance, the state included in the “Seventh Five-year Plan” the study on soil and water conservation in the upper reaches of the Yangtze River as one of the key research projects. Guizhou Forestry Bureau undertook the special topic 75-08-02-13 to determine the Panchiao River watershed in Dejiang County As "the middle reaches of the Wujiang limestone mountainous climate and water resources forest, water and Paul forest construction technology and small watershed comprehensive test