CALCULATION AND ANALYSIS ON CHANGE OFAGRICULTURAL WATER CONSUMPTIONIN THE CHANGJIANG DELTA  

作　　者：ZHANG Yong-qin1, MIAO Qi-long2, PENG Bu-zhuo1(1. Department of Urban and Resources Sciences, Nanjing University, Nanjing 210093, P. R. China 2. Department of Environmental Sciences, Nanjing Institute of Meteorology, Nanjing 210044, P. 

出　　处：《Chinese Geographical Science》2001年第4期35-39,共5页中国地理科学（英文版）

基　　金：Under the auspices of the Doctorate Foundation Projects of China Education Committee(No.98028432).

摘　　要：ABSTRACT: The potential evapotranspiration of specific crops in the Changjiang Delta is calculated by using Pen-man-Monteith method, and an agricultural water consumption model in the area is developed on the basis of agricultural production situation. This model has higher precision compared with actual data and can reflect the actual status of agriculture water need. Considering the meteorological, hydrological, economical development situation of the Changjiang Delta, this paper calculates and analyzes the volumes of agricultural water consumption in 2000, 2010, 2030 and 2050 under different climate change conditions and different development speeds of urbanization in future. The result shows agriculture water demand increases with temperature rising and decreases obviously with cultivated area reducing. For the Changjiang Delta, the volume of agricultural water consumption in the future will less than that of present.ABSTRACT: The potential evapotranspiration of specific crops in the Changjiang Delta is calculated by using Pen-man-Monteith method, and an agricultural water consumption model in the area is developed on the basis of agricultural production situation. This model has higher precision compared with actual data and can reflect the actual status of agriculture water need. Considering the meteorological, hydrological, economical development situation of the Changjiang Delta, this paper calculates and analyzes the volumes of agricultural water consumption in 2000, 2010, 2030 and 2050 under different climate change conditions and different development speeds of urbanization in future. The result shows agriculture water demand increases with temperature rising and decreases obviously with cultivated area reducing. For the Changjiang Delta, the volume of agricultural water consumption in the future will less than that of present.

关 键 词：AGRICULTURAL water CONSUMPTION CHANGJIANG DELTA CLIMATE CHANGE impact 

分 类 号：S274[农业科学—农业水土工程]