森林维持 meaning in English

sustentation of forest

After wto accession of china and coming of the new century , global ecology and environment are deteriorating severely . as economy of china continued developing , consumption of natural resources was increasing , the quality of forestry resources degraded , the functions of forest ecology were gradually weakened , disastrous floods occurred in the yangtze river , songhua river and nenjiang river . meanwhile , floods also happened in the hunhe river systems of liaoning province in the 1990s of late 20th century , and droughts in western regions of liaoning have threatened the whole province
随着中国加入世贸组织及新世纪的到来，面对全球性生态环境的不断恶化以及由于我国经济持续地高速发展，对资源消耗过快过人，使森林资源品质不断下降，森林维持生态平衡的功能的作用逐渐削弱，不仅我国三江连续发生洪水，西北干旱加重，黄河多次出现断流，辽宁在20世纪90代的浑河水系也曾发生过水灾，辽宁西部干旱日趋加重，已经威胁到整个辽宁。