吉林水利
吉林水利
길림수리
JI LIN WATER RESOURCES
2012年
2期
35-38,41
,共5页
川中丘陵区%小流域%水资源%供需平衡%分析
川中丘陵區%小流域%水資源%供需平衡%分析
천중구릉구%소류역%수자원%공수평형%분석
a hilly area%small-sized watershed%water resources%supply and demand balance%analysis
针对川中丘陵区,以该地区内嘉陵江中游的李子溪流域为典型代表,选取5种川中丘陵地区广泛种植的农作物,用修正的彭曼公式分析其生长期需水量;同时与3个降水特征年的降水量进行对比,得出了流域全年净灌溉需水量缺额及年内分布。丰、平、枯降水年下,李子溪流域净灌溉需水量分别为13 758万m3、21414万m3和21296万m3。为该地区今后集蓄工程的设计、农业的发展和水土保持工作的开展提供参考和借鉴。
針對川中丘陵區,以該地區內嘉陵江中遊的李子溪流域為典型代錶,選取5種川中丘陵地區廣汎種植的農作物,用脩正的彭曼公式分析其生長期需水量;同時與3箇降水特徵年的降水量進行對比,得齣瞭流域全年淨灌溉需水量缺額及年內分佈。豐、平、枯降水年下,李子溪流域淨灌溉需水量分彆為13 758萬m3、21414萬m3和21296萬m3。為該地區今後集蓄工程的設計、農業的髮展和水土保持工作的開展提供參攷和藉鑒。
침대천중구릉구,이해지구내가릉강중유적리자계류역위전형대표,선취5충천중구릉지구엄범충식적농작물,용수정적팽만공식분석기생장기수수량;동시여3개강수특정년적강수량진행대비,득출료류역전년정관개수수량결액급년내분포。봉、평、고강수년하,리자계류역정관개수수량분별위13 758만m3、21414만m3화21296만m3。위해지구금후집축공정적설계、농업적발전화수토보지공작적개전제공삼고화차감。
This paper, taking the middle reaches of Jialing River basin as a typical example for a hilly area, selecting five kinds of crops widely grown the region with the modified Peng Man formula, analyzed the amount of water demand during their growing, and compared it with the amount of precipitation of 3 annual precipitation characteristics, it reached conclusion that the net irrigation water requirements in the watershed and distribution annually. During annual higher, average, lower precipitation, the net irrigation water demand in Lizixi watershed is of 13 7.58 million m3, 21414 million m3 and 21 296 million m3 respectively. It pro- rides the information and reference for the carrying out of the reservoir project design, soil conservation and agriculture development in the region.