Mapping the rainfall distribution for irrigation planning in dry season at pineapple plantation, Lampung Province, Indonesia (Study case at Great Giant Pineapple Co. Ltd.)

International Conference on Climate Change: Challenges and Opportunity on Environment Degradation Researches

地球科学;生态环境科学

Cahyono, P.^1 ; Astuti, N.K.^1 ; Purwito^1 ; Rahmat, A.^2

Department of Research and Development, Great Giant Pineapple Company, Jl. Raya Arah Menggala Km 77, Terbanggi Besar, Lampung Tengah, Terbanggi Besar

34163, Indonesia^1

United Graduate School of Agricultural Science, Gifu University, 1-1 Yanagido, Gifu, Gifu Prefecture

501-1193, Japan^2

关键词: Irrigation period;    Irrigation planning;    Irrigation schedule;    Location points;    Mapping method;    Rainfall distribution;    Server programs;    Starting time;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/129/1/012017/pdf
DOI  :  10.1088/1755-1315/129/1/012017

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

One of the problems caused by climate change is unpredictable of the dry season. Understanding when the dry season will start is very important to planning the irrigation schedule especially on large plantation. Data of rainfall for 30 years in Lampung, especially in Pineapple Plantation show that dry month occurs from June to October. If in two decadals (ten days period) rainfall less than 100 mm then it is predicted that next decadal will be dry season. Great Giant Pineapple Co. Ltd. has 32,000 hectares plantation area and located in three regencies at Lampung Province, Indonesia with varies rainfall between regions within a plantation. Therefore, monitoring the rainfall distribution by using ombrometer installed at 10 representative location points can be used to determine irrigation period at the beginning of dry season. Mapping method using the server program and data source is from 10 monitoring rainfall stations installed at the observed points. Preparation of rainfall distribution mapping is important to know the beginning of the dry season and thus planning the irrigation. The results show that 2nddecadal of April is indicated as the starting time of dry season, which is similar with Indonesian government for climate agency's result.