南水北调与水利科技
南水北調與水利科技
남수북조여수리과기
SOUTH-TO-NORTH WATER
2013年
1期
81-86
,共6页
长江源%高寒地区%气候变化%水文气象要素%水文环境
長江源%高寒地區%氣候變化%水文氣象要素%水文環境
장강원%고한지구%기후변화%수문기상요소%수문배경
source region of Yangtze River%extremely frigid zone%climate change%met eorological and hydrological elements%hydrological environment
在全球气候变化背景下,长江江源高寒地区的水文气象要素(气温、降水、蒸发、径流)和水文环境(冰川、冻土、积雪、湿地、沼泽、植被)已受到重大影响.尤其是随着气候变暖,长江江源地区出现了冻土及冻土环境退化、植被退化、冻融侵蚀和土地荒漠化的四大生态环境问题.通过对该地区近50年气候变化对水文气象要素和水文环境影响研究现状的辨析,从国家需求和科学问题两个层面上,提出了当前亟待解决的主要问题并对今后的研究方向进行了展望.这对于促进长江、黄河上游地区和岷江、大渡河、嘉陵江的河源区生态屏障建设,特别是保障三峡库区水资源安全利用研究能够起到一定的参考作用.
在全毬氣候變化揹景下,長江江源高寒地區的水文氣象要素(氣溫、降水、蒸髮、徑流)和水文環境(冰川、凍土、積雪、濕地、沼澤、植被)已受到重大影響.尤其是隨著氣候變暖,長江江源地區齣現瞭凍土及凍土環境退化、植被退化、凍融侵蝕和土地荒漠化的四大生態環境問題.通過對該地區近50年氣候變化對水文氣象要素和水文環境影響研究現狀的辨析,從國傢需求和科學問題兩箇層麵上,提齣瞭噹前亟待解決的主要問題併對今後的研究方嚮進行瞭展望.這對于促進長江、黃河上遊地區和岷江、大渡河、嘉陵江的河源區生態屏障建設,特彆是保障三峽庫區水資源安全利用研究能夠起到一定的參攷作用.
재전구기후변화배경하,장강강원고한지구적수문기상요소(기온、강수、증발、경류)화수문배경(빙천、동토、적설、습지、소택、식피)이수도중대영향.우기시수착기후변난,장강강원지구출현료동토급동토배경퇴화、식피퇴화、동융침식화토지황막화적사대생태배경문제.통과대해지구근50년기후변화대수문기상요소화수문배경영향연구현상적변석,종국가수구화과학문제량개층면상,제출료당전극대해결적주요문제병대금후적연구방향진행료전망.저대우촉진장강、황하상유지구화민강、대도하、가릉강적하원구생태병장건설,특별시보장삼협고구수자원안전이용연구능구기도일정적삼고작용.
@@@@As a result of globe climate change, the meteorological and hydrological elements( temperature, precipitation, evapora2 tion, and runoff) and the hydrological environment( glacier, permafrost, snow , w etlands, sw amp, and vegetation) have been se2 verely impacted in t he ext remely frigid zone of the source region of Yangtze River. With the increasing of temperature, four eco2 logical environment problems occur in the source region of Yangt ze River, including t he permafrost degenerat ion, vegetation de2 generation, freeze2thaw erosion, and land desertificat ion. Through the analysis of the effects of climate change in the recent 50 years on the meteorological and hydrological elements and t he hydrological environment in this area, the needed scientific studies were proposed from t wo aspects of national needs and scientif ic problems. The research in t his study can help to improve the ec2 ological barrier construction in t he source regions of Yangtze River, Yel ow River, Minjiang River, Daduhe River, and Jialingjiang River, especial y to provide references for the st udy of safe utilization of water resources in the Three Gorges Reservoir area.
