出现上述问题的主要原因是:思想观念落后;市场机制发育不全;自然地理环境存在局限性等. Has the above problem the primary cause is:The ideological concept is backward; Market mechanism hypoplasia; Environment existence limited and so on.
Summarize: The main reason which presents problem described above is: The concept lags behind; Hypoplasia of market mechanism; Natural geographical environment is limitation,etc..
the main facts which causes the problem described above are:the concept which lags behind,hypoplasia of market mechinism, limitation of natural geographical environment,ect……