water budget for village level micro-planningsohoni/td603/jys/pocratraining2nov2… · •iwmp:...
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Water Budget for Village Level Micro-Planning
Prof. Milind Sohoni
POCRA team
IIT Bombay
Nanaji Deshmukh Krishi Sanjivani Prakalp(PoCRA, 2017-18)
Divisional Officers Orientation Program
2nd November’17, Yashada, Pune1
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Agenda
• Objectives
• Current situation and need for water budget
• Water budget: concepts
• Output and action plans
• Data requirement and collection
• Water budgeting process and roles
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Objectives
• To consider all sources (SW, soil moisture, GW) aswell as demand side analysis
• To give a computational tool for advise on croppingpattern
• To feed into watershed development plans for thecluster
• To help in implementation of GW act at communitylevel
• Current focus: non-command areas.
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Current situation and need for water budget
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Current Situation
• Changing diets: year long (out-of-season) demand for
perishable fruits, milk, vegetables
• Demand for livestock feed
• Changes in other inputs: seeds, chemicals, labour
• Climate change: variability in daily and cumulative rainfalls,
temperature etc.
Resulting in the following at farm and village level
• Move to annual crops in poorer soil; higher cropping intensity
• Importance of assured water
• Composite use of groundwater, surface water and soil moisture
• Competition for ground water: deeper wells, borewells
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Climate change
परति तिनपरजनयमान
सकतिि
अपधाव(cumulative)
पडगाव,परभणी(२०१५)
पडगाव, परभणी(२०१६)
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Various Programs - What to do, Where to do and How much to do
• IWMP: focus on area treatment, community mobilization, natural resource management approach
• Jalyukta Shivar: oriented towards farmers, many engineering interventions
• Water balance: • Benefits community as well as farm level
• Quantitative understanding of design issues
• Helps to combine benefits of both approaches
• Helps implement JSA exit protocol
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गावािीि महतवाचया समसया
• खरीप हगामािीि वाढि/िाबि चाििि पावसाच खड (dry spells)• िबार परणी
• तपकाच नकसान
• सरतिि तसचनाची गरर
• रबबी हगामाि तपकािा कमी पडणार पाणी• उतपािकिा कमी, बारार भाव कमी, आतथजक नकसान
• भरिासाठी सपधाज, तवतहरी िवकर आटण
• रबबी चया सरवािीिा पाणयाचया उपिबधिनसार सामतहक ररतया तपक पदधिठरतवणयाची गरर
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गावािीि महतवाचया समसया
• वाढि चािििी मािीची धप• मािीचा थर कमी होण
• मािीिीि पाणी साठवन ठवणयाची िमिा कमी होण
• खरीप मधय पावसाचा खड पडलयास मािीिीि पाणी कमी पडण
• रबबी मधय कवळ मािीिीि ओिावया वर घििी राणारी तपक कमी होण
• Ridge to valley पदधिीन मि सधारणाची काम करन मािी ची धप कमी करणआवशयक
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गावािीि सथातनक असमानिा
वरच शिकरी –खािच शिकरी
काळी मािी – मरमाड मािी
बागायिी शिकरी –कोरडवाह शिकरी
• िाळबि कवळ आकडवारी नसन तयाचा सबध सथातनकपररससथिीशी व पाणयाचया असमान (कमी / रासत) उपिबधिशीरोडण अतिशय महतवाच
• तया कररिा तवतवध नकाशाचया (Soil, Land use maps इतयािी)सहाययान गरर शिकऱयाना िकषय करण आवशयक
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Sample soil texture map (Gondala, Hingoli)
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Sample soil depth map (Gondala, Hingoli)
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Contour Map
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Typical Scenario
Area: 700 AcresRainfall 650mm
Kharif Area Aspiration Vulnerable
Orange 50 +50 Borewell
Cotton 200 +50
Soyabean 200 100
Tur 200 100
Jawar 100 -75
Rabi
Harbhara 100 +25 75
Wheat 50 +50 50
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Crop Water
Crop Water(mm) Crop Water(mm)
Soyabean 400 Orange 1100
Tur 450 Harbhara 350
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तपणयाच पाणयाची उपिबधिा व भरि पािळी
पवी
भरि पािळी
गावठाणािीि तपणयाचयापाणयाची तवहीर
शि तवहीर
सदयाससथिी
सतरोत बळकटीकरणआवशयक 16
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Key Question
• Can we answer vulnerability and aspirational questions?
• Can we advise farmers as well as community?
Answer: Water Balance
• Framework – Supply and Demand
• Spatial as well as temporal analysis
• Uses scientific data which is now available
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Water budget: concepts
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पाणयाचा िाळबि : महततवाच गतणि व साधन
• िाळबि महणर थोडकयाि पाणयाची उपिबधिा आतण मागणी याच समीकरण वतयानसार पाणयाचा वाटप करण
• शिकरी समार आतण इिर िोकामधय या पाणयाचया गतणिाबददिची रागरकिावाढतवण
• गावाचा समगर आतण एकतिि तवचार करणयास परोतसाहन िण
• गाव पािळीवर सामहिक तवचार-परतिया व तनयोरन-परतिया बळकट करण
• तनयोरन कशासाठी?
• गावातील सवव शतकऱााना (हवशषतः छोट व सीमाात) परस पाणी उपलबध करनदणयासाठी
• गावातील हपणयाचया पाणयाची टाचाई सोडहवणयासाठी (हवशषतः महिला, भहमिीन, आहदवासी ााचया समसया) 19
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भरि
Jun DecNovOctSepAug JanJul Feb Mar Apr May Jun
खरीप
कापस, िर इ.
वातषजक / फळ तपक
रबबीउनहाळी
परजनयमानDry spell
अपाधावरि सधारणकाम
पनभजरण
मािीिीि ओिावा
महततवाचा तनणजय १ महततवाचा तनणजय २
सरतिि तसचन
वन-िि, करण, गवि इतयािी
िाळबिाची सकलपना 20
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Simple hydrological cycle िाळबिािीि परमख घटक
परजनयमानतपकाची गररबाशपोतशवास (ET)
अपधावमािीिीिओिावा
मािीिन
तिरपिि पाणी(भरि)
भरि परवाह
खडक
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Kharif water balance
अपधाव जहमनीत मरलल
पाणी
पजवनयमान
22
मातीतील
हशललक
पाणी /
ओलावा
मातीतन
खाली
हिरपलल
पाणी (भजल)
खरीप हपक
िाड गवत
ाानी शोषलल
पाणी
गावाबािर
वाहन
जाणार पाणी
मद व जल
साधारण
कामाामळअडहवलल पाणी
जहमहनतील
पाणयात वाढ
(पनभवरण)
बाषपीभवनGW flows/ Baseflowsभजल साठा
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अपधाव जहमनीत मरलल
पाणी
पजवनयमान
मखय घटक : रतमनीचा उिार, परकार, मािीचा परकार,
soil thickness, organic matter आचछािन
इ.
मखय घटक :
नोिीची वारवाररिा (सधया िनतिन
उपिबध)
नोिीच तठकाण (सधया मडळ सतरावरउपिबध)
High Low
Slope
Soil conductivity
Organic matter
Soil thickness
Low runoff
High runoff
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गावाबािर वाहन
जाणार पाणी
अपधाव
मद व जल
साधारण
कामाामळ
अडहवलल पाणी
जहमहनतील
पाणयात वाढ
(पनभवरण)
बाषपीभवन
मखय घटक :
िापमान, हवचा वग, आरदजिा,
पाणयाचा पषठभाग इ.उपचाराची पाणी साठवण िमिा, भरण
सखया, मािीचा परकार, रतमनीचा उिार इ.
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मखय घटक : Available run-off for potential structures, existing structures: सीमट बधार, मािी नािा बाध, पािरििाव, कटी वयर, gabion बधार, deep CCT, ि.बो., शि िळ इ.
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अपधाव तनयोरनाची गरर
परति तिनपरजनयमान
सकतिि
अपधाव(cumulative)
पडगाव,परभणी(२०१५)
पडगाव, परभणी(२०१६)
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dry spells, soil moisture deficit
तपकाची पाणयाची गरर(तमतम परति तिन)
तपकािा मािीिन उपिबधपाणी (तमतम परति तिन)
Ref. - परा परसाि याचया चाि अभयासािन (तसननर िािका, नातशक) २०१७
िनतिन परजनयमान (तमतम)
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भरि
Jun DecNovOctSepAug JanJul Feb Mar Apr May Jun
खरीप
कापस, िर इ.
वातषजक / फळ तपक
रबबीउनहाळी
परजनयमानDry spell
अपाधावरि सधारणकाम
पनभजरण
मािीिीि ओिावा
महततवाचा तनणजय १ महततवाचा तनणजय २
सरतिि तसचन
वन-िि, करण, गवि इतयािी
Now to rabi water balance27
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जहमनीत मरलल
पाणी
पजवनयमान
28
मातीतील
हशललक पाणी / ओलावा
मातीतन खाली
हिरपललपाणी (भजल)
खरीप हपक िाड
गवत ाानीशोषलल पाणी
GW flows/ Baseflows
भजल साठा
Soil Moisture
Ground water stockGW flow in from upstream
GW flow out downstream
Evapotranspiration
GW Recharge
Infiltration
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जहमनीत मरलल
पाणी
पजवनयमान
29
मातीतील
हशललक पाणी / ओलावा
मातीतन खाली
हिरपललपाणी (भजल)
खरीप हपक िाड
गवत ाानीशोषलल पाणी
GW flows/ Baseflows
भजल साठा
मखय घटक :
Evapotranspiration Load:तपक, िाड, गवि
याची पाणयाची रोरची
गरर, मळाची खोिी,
तयाची पाणी शोषन घणयाची
िमिा इ.
िापमान, आरदजिा, हवचावग इ.
Actual ET Load: Soil moisture stress condition
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जहमनीत मरलल
पाणी
पजवनयमान
30
मातीतील
हशललक पाणी / ओलावा
मातीतन खाली
हिरपललपाणी (भजल)
खरीप हपक िाड
गवत ाानीशोषलल पाणी
GW flows/Baseflows
भजल साठामखय घटक : मािीचा परकार (water holding capacity, conductivity) soil thickness, organic matter इ.
मखय घटक : मािीचा परकार (water holding capacity, conductivity) soil thickness, भरि-धारकाच गणधमज इ.
भरि-धारकाच गणधमज
(aquifer properties?)
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Rabi water availability
भजल साठा
रबबी व उनहाळी
हपकाासाठीहशललक पाणी
मातीतील हशललकपाणी
बािरील पाणी (उपसा
हसाचन, कालवा, बोरवल इ.)
वरच गाव खािच गाव
+
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• उपिबधिपिा गरर रासत महणर नमक काय?• रबी तपकािा शवटच पाणी कमी पडण
• रबी / उनहाळी तपकािा कमी पडणार पाणी खोि बोरवल न अथवा गावा बाहरन lift करनपरतवण
• शत-तळ खोिन पाणयाचया उपिबधिची तनतििी करण
• परीणाम• तपकाची उतपािकिा कमी , शिकऱयाच आतथजक नकसान
• भरिासाठी सपधाज, तवतहरी िवकर आटण, उनहाळयाि पाणयाची टचाई
• खोि खोि बोरवि व शि-िळ यावर अमयाजतिि खचज
• उपाय• नवीन रि-सधाराची काम करन उपिबधिा वाढतवण
• गावािीि पाणयाचया उपिबधिनसार शावि तपक पदधिी अविबण (उिा. तहवर बारार)
रबबी व उनहाळी हगामासाठीतशललक पाणी
रबबी व उनहाळी हगामािीितपकाची गरर
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रबबी व उनहाळी हगामासाठीतशललक पाणी
रबबी व उनहाळी हगामािीितपकाची गरर
नवीन रि-सधाराची काम करनउपिबधिा वाढतवण
गावािीि पाणयाचया उपिबधिनसारशावि तपक पदधिी अविबण33
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रबबी रि-वापर तनिशाक
१.० पिा कमी असलयास -- सरहित सथिती
१.० पिा रासतअसलयास -- असरहित सथिती
DEMAND SIDE MANAGEMENT
आवशयक
रबबी व उनहाळी हगामासाठी
तशललक पाणी
रबबी व उनहाळी हगामािीि
तपकाची गरर
=
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Output and action plans
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Objective of Micro-plans
• खरीपािीि सरतिि तसचनाची गरर परतवण
• खरीपािीि िागवडीखािीि िि वाढतवण
• रबी िीि िागवडीखािीि िि वाढतवण
• रबी रि-वापर तनिशाक आटोकयाि ठवण
• वन-िि व उवजररि तबगर-शिी रतमनीवर वि िागवड व मिसधारानाची काम हािी घयावी
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उपचाराच तनयोरन Treatment Potential map (िरगाव, फिबरी, औरगाबाि)
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Output of the water budget
• Kharif vulnerable zones• Identification of zones most vulnerable during Kharif dry
spells
• Requirement of protective irrigation
• Targeted region for interventions
• Total runoff and peak run-off at key points in streams• Potential water that can be impounded
• Match with Kharif protective irrigation demand targets
• Rabi water balance• Available ground water for Rabi irrigation
• Under design
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Land use map (Pedgaon, Parbhani)
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How to do protective irrigation?
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७० ह. चा छोटापाणिोट
खरीप हगामाि सरतिि तसचनासाठीनािा व अपधाव तनयोरन
शि िळ,
छोट बधार, खोिीकरण इ.
1st order stream
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Output of the water budget
• Kharif Vulnerable zones
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परा परसाि, सधाश िशमखयाचया चाि अभयासािन(२०१७)
(गाव – तिगिरी, रामिया, गोडाळा, उमरिरी (सनगाव, तहगोिी)
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Output of water budget
• Total run-off and peak-runoff at various points
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Rabi balance – where is rabi possible?
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Rabi balance – where is rabi possible?
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Demand side management/ Rabi cropping decision• Ground water: how much to take from upstream?
How much to give to downstream?
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Data requirement and collection process
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Sr.
No
Water Budget
ComponentSecondary Data Source Analysis
1 Surface RunOff Daily Rainfall dataMaharain website,
agroclimatic zone wise KVK
Supply side analysis (AET,
Runoff and Infiltration
calculation)
Land Use Land Cover maps MRSAC
Select and analyze for areas of
interest - Agricultural land
and Fallow land
Soil Maps MRSAC
Calculation of AET
requirement and groundwater
infiltration as well as run off
Watershed Map MRSACTo perform clusterwise
analysis
2Ground Water
RechargeSpecific yield and conductivity PoCRA (from GSDA)
Pre Monsoon to Post Monsoon
Well level FluctuationGSDA
Drainage Map
DEMfor modflow simulation and
gw model
Ground water assessment report
latestGSDA
Secondary data
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Sr. NoWater Budget Component
Secondary Data Source Analysis
2Ground Water Recharge
Ground Water Prospect Map MRSAC
Ground recharge priority map GSDA
Geology, lithologs, HydrogeologyMaps
GSDA
3Recharge fromotherstructures
All surface water storage structures(2016-17)
PoCRA (from WRD and MI Local– ZP)
Not required for us except ifarea treatment done
4 Crop ETVillage Level Crop Sowing reports(Kharif, Long Kharif, Rabi, Summer)(2011-2017)
PoCRA from (Taluka Agriculture Officer or Deputy Director Agriculture).
Basic Cultivation data for app
Zone wise Eto dataWALMI or KVK or AgriUniversities
Crop water demand and AET Calculation and input in app
Revenue or Cadastral Maps. GP Offices / ZP offices Village level analysis
Crop ET Load for crops cultivated inthese clusters
WALMI or KVK or AgriUniversities
Crop water demand and AET Calculation and input in app
Secondary data
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Primary data
• Validation of Kharif vulnerable zones
• Existing cropping pattern – Kharif, Rabi, Summer, Annual
• Single cropped, double cropped area
• Irrigation practices, yields
• Existing structures and watershed interventions
• Well surveys
• Stream flows and duration
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Budgeting process and roles
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Water budgeting process and roles• Cluster data and map docket
• Shivar-feri
• Detailed field work• Well levels, soil data
• Stress and vulnerability – farmer interviews
• Current assets and drainage
• Village Meeting – preparation of village plan
• Big picture and technical vetting
• Action plan and implementation
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धनयवाद!52