karst valley meaning in English

喀斯特河谷
溶谷

Soil characteristics of zanthoxylum bungeanum with soil and waterconservation benefits in karst valley of guizhou province
贵州喀斯特峡谷水保经济植物花椒土壤特性研究
Abstract : by analysis on the physical and chemical properties of rhizosphere and nonrhizosphere soils of zanthoxylum bungeanum with soil and water conservation economic benefits in karst valley of guizhou province , the soil characteristics suiting zanthoxylum bungeanum growth well was studied , and some major technical measures of developing zanthoxylum bungeanum production has been put foward
文摘:测定了贵州喀斯特峡谷水保经济植物花椒根际和非根际土壤的理化性质；探讨了适宜花椒生长的土壤特性；提出了发展花椒生产的主要技术措施。