AI SearchClimate change impacts on paddy yield, crop failure, and cropping intensity in Sri Lanka : (Record no. 17871)
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| 000 -LEADER | |
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| fixed length control field | 04075nas a2200397 a 4500 |
| 005 - DATE AND TIME OF LATEST TRANSACTION | |
| control field | 20260817172859.0 |
| 008 - FIXED-LENGTH DATA ELEMENTS--GENERAL INFORMATION | |
| fixed length control field | 240522s20239999th uu m tt 000 a eng d |
| 035 ## - SYSTEM CONTROL NUMBER | |
| System control number | .b12427020 |
| 099 ## - LOCAL FREE-TEXT CALL NUMBER (OCLC) | |
| Classification number | AIT Diss no.CC-23-02 |
| 100 1# - MAIN ENTRY--PERSONAL NAME | |
| Personal name | Chandrasiri, Withana Arachchige Chamila Kumari |
| 245 10 - TITLE STATEMENT | |
| Title | Climate change impacts on paddy yield, crop failure, and cropping intensity in Sri Lanka : |
| Remainder of title | a panel data approach |
| 260 ## - PUBLICATION, DISTRIBUTION, ETC. | |
| Place of publication, distribution, etc. | Pathum Thani, Thailand : |
| Name of publisher, distributor, etc. | Asian Institute of Technology, |
| Date of publication, distribution, etc. | 2023 |
| 300 ## - PHYSICAL DESCRIPTION | |
| Extent | 181 leaves : |
| Other physical details | ill. |
| 490 1# - SERIES STATEMENT | |
| Series statement | Dissertation ; |
| Volume/sequential designation | no.CC-23-02 |
| 500 ## - GENERAL NOTE | |
| General note | A dissertation submitted in partial fulfillment of the requirements for the degree of doctor of Philosophy in Climate Change and Sustainable Development |
| 502 ## - DISSERTATION NOTE | |
| Dissertation note | Thesis (Ph.D.) - Asian Institute of Technology, 2023 |
| 520 ## - SUMMARY, ETC. | |
| Summary, etc. | While climate change has been affecting agricultural production globally, scarce literature has quantified the impacts of climatic factors on crop failure and cropping intensity with particular attention to growth periods, specific water regimes, and spatiotemporal variations. This study aimed to analyze and quantify the effects of climatic variables at the early (Growth Phase I) and latter (Growth Phase II) paddy growth phases, crop seasons (Maha and Yala)1 , water regimes (major irrigation, minor irrigation, and rainfed) in the three climatic zones (dry zone (DZ), intermediate zone (IZ), and wet zone (WZ)) on paddy yields, Unharvest Index (UI) (representing crop failure), and Cropping Index (CI) (representing the intensity of crop cultivation in the same land area per year) in Sri Lanka. A panel dataset was constructed, covering 20 districts for the 39-year period (1981 to 2019), which was analyzed by panel regression methods. The dependent variables were paddy yield (seasonal), UI (seasonal), and CI (annual). The results revealed that temperature had significant non linear effects on yields in the DZ and IZ; rainfall significantly reduced yields in the DZ and WZ, whereas it increased yields in the IZ; and rainfall fluctuation decreased yields in the WZ. In general, 5% of the cultivated area underwent paddy crop failure with variation of up to 60%; crop failure was prominent in rainfed production, the DZ and IZ, and Maha season; higher variability in seasonal temperature increased crop failure; and higher rainfall in Growth Phase I reduced crop failure in rainfed production. CI was averaged at 141%, 108%, and 105% in major, minor, and rainfed areas, respectively; CI of irrigated areas rose with Maha rainfall, while it fell with rising temperature in Yala. The findings suggest the need for several actions: specific climate adaptation policies considering spatiotemporal variations for each water regime; specific crop insurance programs for rainfed paddy; and improvement of water storage capacity and irrigation systems. Future research should incorporate more variables, such as socioeconomic characteristics, replanted area, and occurrence of flood and drought events into the analysis. |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Climatic changes |
| Geographic subdivision | Sri Lanka |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Agriculture |
| General subdivision | Environmental aspects |
| Geographic subdivision | Sri Lanka |
| 650 #0 - SUBJECT ADDED ENTRY--TOPICAL TERM | |
| Topical term or geographic name entry element | Crops and climate |
| Geographic subdivision | Sri Lanka |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Datta, Avishek, |
| Relator term | Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Tsusaka, Takuji W., |
| Relator term | Co-Chairperson |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Dhakal, Shobhakar, |
| Relator term | Examination Committee |
| 700 1# - ADDED ENTRY--PERSONAL NAME | |
| Personal name | Zulfiqar, Farhad, |
| Relator term | Examination Committee |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Sri Lanka Council for Agricultural Research Policy (SLCARP), |
| Relator term | Scholarship Donor |
| 710 2# - ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology Fellowship, |
| Relator term | Scholarship Donor |
| 810 2# - SERIES ADDED ENTRY--CORPORATE NAME | |
| Corporate name or jurisdiction name as entry element | Asian Institute of Technology. |
| Title of a work | Dissertation ; |
| Volume/sequential designation | no. CC-23-02 |
| 856 40 - ELECTRONIC LOCATION AND ACCESS | |
| Host name | |
| Materials specified | Full-Text |
| Uniform Resource Identifier | <a href="http://203.159.5.9/ait-thesis/detail.php?q=B20685">http://203.159.5.9/ait-thesis/detail.php?q=B20685</a> |
| 907 ## - LOCAL DATA ELEMENT G, LDG (RLIN) | |
| a | .b12427020 |
| b | mnait |
| c | a |
| 902 ## - LOCAL DATA ELEMENT B, LDB (RLIN) | |
| a | 240606 |
| 998 ## - LOCAL CONTROL INFORMATION (RLIN) | |
| Operator's initials, OID (RLIN) | 0 |
| Cataloger's initials, CIN (RLIN) | 240527 |
| First date, FD (RLIN) | m |
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| -- | a |
| -- | 0 |
| 945 ## - LOCAL PROCESSING INFORMATION (OCLC) | |
| l | mnarc |
| 942 ## - ADDED ENTRY ELEMENTS (KOHA) | |
| Koha item type | 67-Electronic Resource |
| 909 ## - LOCAL ITEMS USED | |
| Barcode | Barcode : - |
| CREATED | CREATED : 2024-05-22 |
| RECORD Id | RECORD # : i13499841 |
| LPATRON | LPATRON : 0 |
| LCHKIN | LCHKIN : - |
| RENEWALS | # RENEWALS : 0 |
| -- | # OVERDUE : 0 |
| -- | IUSE3 : 0 |
| -- | TOT CHKOUT : 0 |
| -- | TOT RENEW : 0 |
| Withdrawn status | Lost status | Damaged status | Not for loan | Home library | Current library | Shelving location | Date acquired | Total checkouts | Full call number | Date last seen | Price effective from | Koha item type |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
| Available for Loans | Asian Institute of Technology Library | Asian Institute of Technology Library | Archives | 17/08/2026 | AIT Diss no.CC-23-02 | 17/08/2026 | 17/08/2026 | 67-Electronic Resource |